feat(litigationplanner): scenarios — paliad.scenarios jsonb table + Catalog API + engine adapter (Slice D, t-paliad-306, m/paliad#124 §5)

A scenario is a named composition of existing proceedings + flags +
per-card choices + anchor dates. Users compose, they don't author —
spec references existing rules by submission_code; never creates new
rules. Per m's 2026-05-26 AskUserQuestion picks (doc commit 6e58595):
  Q1 composition: primary + spawned (v1); multi-proceeding peer
                  compose is the v2 goal (spec.proceedings[] array)
  Q2 scope:       per-project + abstract (project_id NULL = abstract)
  Q3 trigger:     per-anchor overrides over one base date
  Q4 storage:     NEW paliad.scenarios table with jsonb spec
                  (NOT a project_event_choices column extension)

Migration 145 — additive only. Pre-flight coordination check:
  - On-disk max: 138 (Berufung backfill, just merged).
  - Live DB tracker: 106 (significantly behind — many migs pending
    deploy).
  - curie's #93 B.2-B.6 migs not pushed yet — reserved 139-143 + 144
    as buffer; claimed 145 as the safe minimum that won't collide.
  - paliad.scenarios has audit_reason NOT applicable (no audit
    trigger on the table); updated_at trigger added on the table
    itself.
  - paliad.projects gains active_scenario_id uuid NULL FK with ON
    DELETE SET NULL (mig 134 lesson — no updated_at clauses on
    proceeding_types-style assumptions).

Schema:
  paliad.scenarios (
    id uuid pk,
    project_id uuid NULL FK → projects(id) ON DELETE CASCADE,
    name text NOT NULL CHECK char_length > 0,
    description text NULL,
    spec jsonb NOT NULL CHECK jsonb_typeof = 'object',
    created_by uuid NULL FK → users(id) ON DELETE SET NULL,
    created_at + updated_at timestamptz,
    UNIQUE NULLS NOT DISTINCT (project_id, created_by, name)
  );
  paliad.projects.active_scenario_id uuid NULL FK;
  RLS: project-scoped → can_see_project; abstract → created_by = auth.uid();
  Trigger: scenarios_touch_updated_at_trg.

pkg/litigationplanner additions:
  - Scenario struct (db + json tags)
  - ScenarioSpec / ScenarioProceeding / ScenarioCardChoice — parsed
    view of the jsonb (version-1 today, v2 multi-peer-ready)
  - ParseSpec(raw) + ScenarioSpec.PrimaryProceeding() + CalcOptionsFromSpec()
  - ScenarioFilter + Catalog.LoadScenarios + Catalog.MatchScenario
  - CalculateFromScenario(scenario, catalog, holidays, courts) — high-
    level engine entry: parses spec → builds CalcOptions → delegates
    to Calculate
  - Sentinel errors: ErrUnknownScenario, ErrInvalidScenario,
    ErrScenarioNoPrimary

paliadCatalog impl:
  - LoadScenarios with progressively-built WHERE clauses (project-id
    filter, abstract-for-user filter, or all)
  - MatchScenario by id — returns ErrUnknownScenario on not-found
  - Services connection bypasses RLS; ScenarioService enforces
    visibility at the application layer (mirrors EventChoiceService
    pattern from t-paliad-265)

SnapshotCatalog impl (embedded/upc):
  - LoadScenarios returns empty slice (no scenarios in the snapshot)
  - MatchScenario returns ErrUnknownScenario

internal/services/scenario_service.go:
  - Create / Get / ListForProject / ListAbstractForUser / Patch /
    SetActive / Delete with visibility checks
  - validateSpec checks version, base_trigger_date format, every
    proceedings[*].code resolves to an active paliad.proceeding_types
    row, every appeal_target is valid, every anchor_overrides date
    parses, every role ∈ {primary, peer}
  - SetActive validates the scenario belongs to the requested project
    (a scenario from a different project can't be active here)
  - Returns ErrScenarioNotVisible for failed visibility checks

REST endpoints (registered in handlers.go):
  GET    /api/scenarios?project=<id>             — list project's
  GET    /api/scenarios?abstract=true            — list user's abstract
  GET    /api/scenarios/{id}                     — one
  POST   /api/scenarios                          — create
  PATCH  /api/scenarios/{id}                     — partial update
  DELETE /api/scenarios/{id}                     — remove
  PUT    /api/projects/{id}/active-scenario      — set / clear active

Handler error mapping:
  - ErrUnknownScenario / ErrScenarioNotVisible → 404
  - ErrInvalidInput / ErrInvalidScenario / ErrScenarioNoPrimary → 400
  - everything else → 500

Tests:
  - pkg/litigationplanner/scenarios_test.go: ParseSpec roundtrip
    (well-formed + unknown version + malformed json),
    PrimaryProceeding zero/multi/single, CalcOptionsFromSpec full
    unpack, trigger_date_override path, no-base-trigger safety check.
    8 cases total, all DB-free.

Wired in cmd/server/main.go alongside EventChoice — same pattern,
nil-safe when DATABASE_URL is unset (handlers 503 in that mode).

Acceptance:
  - go build ./... clean
  - go test ./... all green (incl. new scenarios tests)
  - Pre-flight audit confirmed mig 145 number is safe vs curie's
    pending B.2-B.6 range

.gitea/workflows/test.yaml

@@ -0,0 +1,242 @@
+# Paliad CI gate (t-paliad-282 / m/paliad#114).
+#
+# Single workflow, two purposes:
+#
+#   - On every push: gate tier — build + unit + migration smoke. Red gate
+#     means no further work and (on main) no deploy.
+#   - On push to main with gate green: deploy step — calls the Dokploy
+#     compose-deploy API for paliad's compose Zx147ycurfYagKRl_Zzyo, then
+#     polls /health/ready until the new container reports 200.
+#
+# The deploy step REPLACES the previous Gitea-push → Dokploy webhook path
+# (per m's Q11.4 pick: soft-launch with both alive for ~1 week, then
+# disable the Dokploy auto-deploy toggle). Soft-launch leaves Dokploy's
+# autoDeploy=true intact today — the workflow's deploy step is additive
+# and idempotent (Dokploy's deploy is itself idempotent).
+#
+# Catches the three failure classes from 2026-05-25:
+#
+#   - brunel slot collision (~13:20) — TestMigrations_NoDuplicateSlot,
+#     pure unit, no DB needed.
+#   - hermes dropped-col refs (~16:05) — TestBootSmoke, applies all NEW
+#     migrations (those not in the snapshot) end-to-end against a
+#     scratch DB restored from internal/db/testdata/prod-snapshot.sql.
+#   - mig 129 42501 ownership (~14:56→) — TestMigrations_EndToEndAsAppRole,
+#     applies new migrations as the prod-shaped `postgres` role (which
+#     is NOT a superuser on supabase/postgres — same shape as
+#     youpc-supabase prod, see internal/db/testdata/README.md).
+#
+# Snapshot approach: dump paliad schema + applied_migrations rows from
+# prod, commit them. CI restores → ApplyMigrations sees existing migs as
+# applied, only runs NEW migs (the ones this PR adds). This sidesteps the
+# fresh-DB idempotence requirement on historical migrations (some of
+# which use raw COMMIT or pre-installed extensions and can't be replayed
+# from scratch). To refresh: `make refresh-snapshot`.
+#
+# Design: docs/design-cicd-pre-deploy-gate-2026-05-25.md (cronus inventor
+# shift, t-paliad-282).
+
+name: Paliad CI gate
+
+on:
+  push:
+    branches:
+      - main
+      - 'mai/**'
+  pull_request:
+    branches: [main]
+
+env:
+  GO_VERSION: '1.24'
+  BUN_VERSION: '1.2'
+
+jobs:
+  # Gate job 1 — pure build. Catches go/bun build breakage that local
+  # `go build` would catch but which a worker might have skipped before
+  # pushing. Fast (~60 s) so a red here surfaces immediately.
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: true
+
+      - name: go build
+        run: go build ./...
+
+      - name: go vet
+        run: go vet ./...
+
+      - name: Set up Bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: ${{ env.BUN_VERSION }}
+
+      - name: bun install + build
+        working-directory: frontend
+        run: |
+          bun install --frozen-lockfile
+          bun run build
+
+  # Gate job 2 — Go test suite + migration smoke against snapshot-restored
+  # scratch DB.
+  #
+  # The Postgres service container uses the same supabase/postgres image
+  # as youpc-supabase prod. The CI scratch DB starts empty; a setup step
+  # installs pg_trgm + restores the snapshot. After restore, paliad
+  # schema is at HEAD-of-snapshot and applied_migrations covers every
+  # migration up to (and including) the snapshot's max version.
+  #
+  # ApplyMigrations called in TestBootSmoke / TestMigrations_EndToEndAsAppRole
+  # sees the snapshot's applied set, finds whatever NEW migrations this
+  # PR added on top, and applies only those. The role-split smoke runs as
+  # `postgres` (which is NOT a superuser on supabase/postgres, matching
+  # the prod role topology) — any new migration that needs supabase_admin
+  # privilege fails here as it would in prod.
+  test-go:
+    runs-on: ubuntu-latest
+
+    services:
+      # supabase/postgres baked-in auth schema + supabase role topology
+      # matches youpc-supabase prod. `postgres` here is NOT a superuser
+      # (verified live: \du postgres shows "Create role, Create DB,
+      # Replication, Bypass RLS" — no Superuser). This is the prod-shaped
+      # role the deploy uses.
+      postgres:
+        image: supabase/postgres:15.8.1.060
+        env:
+          POSTGRES_PASSWORD: ci
+          POSTGRES_DB: paliad_scratch
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd "pg_isready -U postgres"
+          --health-interval 5s
+          --health-timeout 5s
+          --health-retries 30
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+          cache: true
+
+      - name: Install postgresql-client
+        run: |
+          apt-get update -qq && apt-get install -y -qq postgresql-client
+
+      # Snapshot restore. Two prep steps as supabase_admin (the actual
+      # superuser): GRANT CREATE so the `postgres` role can later create
+      # schemas if a new mig needs it; install pg_trgm so the snapshot's
+      # trigram indexes restore. Snapshot itself loads as `postgres`.
+      - name: Provision + restore snapshot
+        env:
+          PGPASSWORD: ci
+        run: |
+          set -euo pipefail
+          psql -h localhost -U supabase_admin -d paliad_scratch -v ON_ERROR_STOP=1 \
+            -c "GRANT CREATE ON DATABASE paliad_scratch TO postgres;" \
+            -c "CREATE EXTENSION IF NOT EXISTS pg_trgm;"
+          psql -h localhost -U postgres -d paliad_scratch -v ON_ERROR_STOP=1 \
+            -f internal/db/testdata/prod-snapshot.sql
+
+      # Pre-flight: catches brunel slot collision in seconds, no DB
+      # contact (still useful even though the test-go job has Postgres
+      # running, because the failure mode is independent).
+      - name: Migration coordination check
+        run: go test -count=1 -run TestMigrations_NoDuplicateSlot ./internal/db/
+
+      # Role-split end-to-end apply. Connects as `postgres` (NOT a
+      # superuser on supabase/postgres) and runs ApplyMigrations against
+      # the snapshot-restored DB. Existing migs are skipped (already in
+      # applied_migrations); NEW migs in this PR apply here. If a new
+      # migration assumes supabase_admin privilege, fails with the same
+      # 42501 error class that took paliad.de offline on 2026-05-25.
+      - name: Migration end-to-end (deploy role)
+        env:
+          TEST_APP_DATABASE_URL: postgres://postgres:ci@localhost:5432/paliad_scratch?sslmode=disable
+        run: go test -count=1 -run TestMigrations_EndToEndAsAppRole ./internal/db/
+
+      # Boot smoke. Confirms ApplyMigrations succeeds + applied set
+      # matches on-disk set + /healthz returns 200 + /health/ready
+      # returns 200 (the live-pool variant via TestHealthReady_Live).
+      - name: Boot smoke + readiness
+        env:
+          TEST_DATABASE_URL: postgres://postgres:ci@localhost:5432/paliad_scratch?sslmode=disable
+        run: go test -count=1 -run 'TestBootSmoke|TestHealthReady_Live' ./cmd/server/
+
+      # Full Go test suite WITHOUT TEST_DATABASE_URL so live-DB service
+      # tests skip (same shape as a developer laptop without a scratch
+      # DB). Live-DB tests in internal/services/* will be activated by a
+      # follow-up shift once the snapshot is verified stable across
+      # multiple PRs — they need investigation against supabase/postgres
+      # 15.8 (parameter type inference differs subtly from youpc-supabase).
+      - name: go test ./... (pure + skip-on-no-DB)
+        run: go test -count=1 ./internal/... ./cmd/...
+
+  # Deploy step. Only runs on push to main and only after both gate jobs
+  # are green. Calls Dokploy's compose.deploy with the paliad compose ID
+  # (Zx147ycurfYagKRl_Zzyo) and polls /health/ready until it returns 200
+  # or times out.
+  #
+  # Skipped on PR / feature branch pushes — those run the gate tier as
+  # a status check but don't trigger a prod deploy. Dokploy's existing
+  # autoDeploy=true webhook continues to fire during the soft-launch
+  # window (per Q11.4); it can be disabled in the Dokploy UI once this
+  # workflow has gated ≥5 successful green deploys.
+  deploy:
+    runs-on: ubuntu-latest
+    needs: [build, test-go]
+    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+
+    steps:
+      - name: Trigger Dokploy compose deploy
+        env:
+          DOKPLOY_KEY: ${{ secrets.DOKPLOY_TOKEN }}
+          DOKPLOY_API: http://100.99.98.201:3000/api/trpc
+          COMPOSE_ID: Zx147ycurfYagKRl_Zzyo
+        run: |
+          set -euo pipefail
+          if [ -z "${DOKPLOY_KEY:-}" ]; then
+            echo "ERROR: DOKPLOY_TOKEN secret is not configured."
+            echo "       Set the secret in Gitea repo settings before this step can deploy."
+            exit 2
+          fi
+          echo "==> POST compose.deploy"
+          curl -sS --connect-timeout 5 --max-time 30 \
+            -X POST \
+            -H "x-api-key: $DOKPLOY_KEY" \
+            -H "Content-Type: application/json" \
+            -d "{\"json\":{\"composeId\":\"$COMPOSE_ID\"}}" \
+            "$DOKPLOY_API/compose.deploy"
+          echo
+
+      - name: Wait for /health/ready
+        run: |
+          set -euo pipefail
+          echo "==> polling https://paliad.de/health/ready"
+          # Up to 5 minutes (60 × 5 s) — paliad's cold-start is normally
+          # ≤30 s; the longer budget covers slow image pulls + migration
+          # apply.
+          for i in $(seq 1 60); do
+            status=$(curl -sS --connect-timeout 3 --max-time 5 \
+              -o /dev/null -w '%{http_code}' \
+              https://paliad.de/health/ready || echo "000")
+            if [ "$status" = "200" ]; then
+              echo "ready after ${i} poll(s)"
+              exit 0
+            fi
+            echo "  [$i/60] status=$status — sleeping 5s"
+            sleep 5
+          done
+          echo "ERROR: /health/ready did not return 200 within 5 minutes."
+          echo "       The deploy fired but the new container is not serving."
+          echo "       Investigate: ssh mlake 'docker logs --tail 50 compose-transmit-multi-byte-driver-v7jth9-web-1'"
+          exit 1

Makefile

@@ -21,18 +21,26 @@
 # the test runner's working dirs. None of them touch internal/db/migrations/
 # files.
 
-.PHONY: help verify-migrations verify-mig test test-go
+.PHONY: help verify-migrations verify-mig verify-mig-app test test-go test-frontend refresh-snapshot snapshot-upc
 
 help:
 	@echo "Paliad — developer targets"
 	@echo ""
 	@echo "  verify-migrations   Dry-run pending migrations + boot smoke (needs TEST_DATABASE_URL)"
 	@echo "  verify-mig          Alias for verify-migrations"
+	@echo "  verify-mig-app      End-to-end migration smoke as non-superuser role"
+	@echo "                      (needs TEST_APP_DATABASE_URL — t-paliad-282 / m/paliad#114)"
 	@echo "  test                Short test pass — covers gate tier"
 	@echo "  test-go             Full Go suite with race detector"
+	@echo "  test-frontend       Frontend bun:test suite"
+	@echo "  snapshot-upc        Regenerate pkg/litigationplanner/embedded/upc/ from live DB"
+	@echo "                      (needs DATABASE_URL — see cmd/gen-upc-snapshot/README.md)"
 	@echo ""
 	@echo "Set TEST_DATABASE_URL to enable live-DB tests. Example:"
 	@echo "  export TEST_DATABASE_URL=postgres://paliad:...@localhost:11833/paliad_test"
+	@echo ""
+	@echo "Set TEST_APP_DATABASE_URL to enable the role-split smoke. Example:"
+	@echo "  export TEST_APP_DATABASE_URL=postgres://paliad_app:...@localhost:5432/paliad_scratch"
 
 # Gate target — the test that would have caught mig 098 / mig 099 before
 # deploy. Combines:
@@ -71,3 +79,86 @@ test:
 # (full suite, not per-PR).
 test-go:
 	go test -race ./...
+
+# Frontend bun:test suite. Runs the 4 existing pure-TS tests today; will
+# grow as mendel's Slice 3 (frontend test infill) lands.
+test-frontend:
+	cd frontend && bun test
+
+# Role-split end-to-end migration smoke — the catch for the mig 129 42501
+# ownership class (m/paliad#114). Runs ApplyMigrations as a non-superuser
+# role against TEST_APP_DATABASE_URL. Fails the build if any migration
+# assumes more privilege than the deploy role has.
+#
+# Developer setup (local):
+#   psql -c "CREATE ROLE paliad_app LOGIN PASSWORD 'ci' NOSUPERUSER;"
+#   psql -c "CREATE DATABASE paliad_scratch OWNER paliad_app;"
+#   export TEST_APP_DATABASE_URL=postgres://paliad_app:ci@localhost:5432/paliad_scratch
+verify-mig-app:
+	@if [ -z "$$TEST_APP_DATABASE_URL" ]; then \
+		echo "ERROR: TEST_APP_DATABASE_URL is not set."; \
+		echo "       The role-split migration smoke cannot run without a non-superuser scratch DB."; \
+		echo "       See Makefile comments above this target for setup."; \
+		exit 2; \
+	fi
+	go test -count=1 -run TestMigrations_EndToEndAsAppRole ./internal/db/
+
+# Refresh the prod schema snapshot used by CI's migration smoke
+# (t-paliad-282 / m/paliad#114). Connects to youpc-supabase prod, dumps
+# the paliad schema + applied_migrations rows, strips rows beyond the
+# current branch's max on-disk version, and writes
+# internal/db/testdata/prod-snapshot.sql.
+#
+# When to refresh:
+#   - After merging a PR that added a new migration to main.
+#   - When CI's migration smoke starts spuriously failing because the
+#     snapshot's applied set diverges from on-disk by more than this
+#     branch's worth of new migs.
+#
+# Requires PALIAD_PROD_DATABASE_URL env var (a Postgres URL with
+# pg_dump rights on youpc-supabase). Example:
+#   export PALIAD_PROD_DATABASE_URL='postgres://postgres:PW@100.99.98.201:11833/postgres'
+refresh-snapshot:
+	@if [ -z "$$PALIAD_PROD_DATABASE_URL" ]; then \
+		echo "ERROR: PALIAD_PROD_DATABASE_URL is not set."; \
+		echo "       Refresh requires read access to youpc-supabase prod."; \
+		exit 2; \
+	fi
+	@echo "==> dumping paliad schema (no owner, no privs)..."
+	@pg_dump --schema-only --schema=paliad --no-owner --no-privileges \
+		--no-publications --no-subscriptions \
+		"$$PALIAD_PROD_DATABASE_URL" > internal/db/testdata/prod-snapshot.sql.tmp
+	@echo "==> appending applied_migrations rows..."
+	@pg_dump --data-only --table=paliad.applied_migrations \
+		--no-owner --no-privileges \
+		"$$PALIAD_PROD_DATABASE_URL" >> internal/db/testdata/prod-snapshot.sql.tmp
+	@echo "==> stripping pg16 \\restrict / \\unrestrict commands for pg15 compat..."
+	@sed -i.bak '/^\\restrict /d; /^\\unrestrict /d' internal/db/testdata/prod-snapshot.sql.tmp
+	@rm -f internal/db/testdata/prod-snapshot.sql.tmp.bak
+	@echo "==> stripping applied_migrations rows beyond branch's max on-disk version..."
+	@MAX_VER=$$(ls internal/db/migrations/*.up.sql | xargs -I{} basename {} | sed 's/_.*//' | sort -n | tail -1); \
+	awk -v max=$$MAX_VER ' \
+	  /^[0-9]+\t/ { split($$0, a, "\t"); if (a[1]+0 > max) next; } \
+	  { print } \
+	' internal/db/testdata/prod-snapshot.sql.tmp > internal/db/testdata/prod-snapshot.sql
+	@rm internal/db/testdata/prod-snapshot.sql.tmp
+	@wc -l internal/db/testdata/prod-snapshot.sql
+
+# Regenerate the embedded UPC snapshot from a live paliad DB. The
+# generator applies pending migrations first, then SELECTs the UPC
+# subset and writes JSON files under pkg/litigationplanner/embedded/upc/.
+#
+# Requires DATABASE_URL — Slice C of the litigation-planner extraction
+# (m/paliad#124 §19). See cmd/gen-upc-snapshot/README.md for the full
+# operator runbook.
+snapshot-upc:
+	@if [ -z "$$DATABASE_URL" ]; then \
+		echo "ERROR: DATABASE_URL is not set."; \
+		echo "       Snapshot generation needs read access to a paliad DB."; \
+		echo "       Set DATABASE_URL to the live paliad Postgres, then re-run."; \
+		exit 2; \
+	fi
+	@echo "==> regenerating UPC snapshot from $$DATABASE_URL"
+	go run ./cmd/gen-upc-snapshot
+	@echo "==> running snapshot tests against the regenerated data"
+	go test ./pkg/litigationplanner/embedded/upc/...

cmd/gen-upc-snapshot/README.md

@@ -0,0 +1,59 @@
+# gen-upc-snapshot
+
+Regenerates the embedded UPC snapshot consumed by
+`pkg/litigationplanner/embedded/upc`. Slice C of the litigation-planner
+extraction (m/paliad#124 §19). See
+`docs/design-litigation-planner-2026-05-26.md` §19 for the full design.
+
+## When to regenerate
+
+After any change that affects the public UPC rule corpus:
+
+- new rules merged via the admin rule-editor
+- a deadline-rule migration that touches UPC rows
+- a `paliad.holidays` update (new public holidays / vacation runs)
+- a `paliad.courts` update (new UPC LD opens, etc.)
+- a `paliad.proceeding_types` change for `jurisdiction = 'UPC'`
+
+The snapshot is operator-controlled — there is no CI regeneration in v1.
+
+## How to regenerate
+
+```sh
+make snapshot-upc
+```
+
+or directly:
+
+```sh
+DATABASE_URL=postgres://...  go run ./cmd/gen-upc-snapshot
+```
+
+Flags:
+
+| Flag            | Default                                | Purpose |
+|-----------------|----------------------------------------|---------|
+| `-output`       | `./pkg/litigationplanner/embedded/upc` | directory to write JSON files into |
+| `-version`      | auto-derived (`YYYY-MM-DD-N`)          | override the snapshot version |
+| `-source-label` | empty                                  | text label written to `meta.json` (`paliad-prod`, `paliad-dev`, …) |
+
+The generator:
+
+1. Applies pending migrations against `DATABASE_URL` (snapshot always matches schema HEAD).
+2. SELECTs UPC active proceeding_types + their published+active rules + referenced trigger_events + DE/UPC holidays + UPC courts.
+3. Writes pretty-printed JSON to `<output>/{proceeding_types,rules,trigger_events,holidays,courts,meta}.json`.
+
+## Idempotence
+
+Running twice with the same DB state produces the same JSON (modulo `meta.generated_at`). Diff-friendly in git.
+
+## Versioning
+
+`meta.json.version` uses `YYYY-MM-DD-N` where N starts at 1 and increments on same-day regenerations. The generator reads the existing `meta.json` and bumps automatically.
+
+## After regeneration
+
+1. Review the diff: `git diff pkg/litigationplanner/embedded/upc/`.
+2. Run tests: `go test ./pkg/litigationplanner/embedded/upc/...`.
+3. Commit with a message like `chore(snapshot): regenerate UPC snapshot (<reason>)`.
+4. Notify any downstream consumer (youpc.org) that a new paliad release is available.

cmd/gen-upc-snapshot/main.go

@@ -0,0 +1,301 @@
+// Command gen-upc-snapshot reads paliad's live deadline corpus and
+// writes the UPC subset as JSON files under
+// pkg/litigationplanner/embedded/upc/. The package's embedded
+// catalog/holiday/court implementations then serve this data without
+// any DB roundtrip — letting youpc.org (or any future consumer) run
+// the litigationplanner engine against the canonical UPC rule set.
+//
+// Slice C (m/paliad#124 §19). See docs/design-litigation-planner-2026-05-26.md
+// §19 for the full design.
+//
+// Usage:
+//
+//	DATABASE_URL=postgres://... go run ./cmd/gen-upc-snapshot \
+//	    [-output ./pkg/litigationplanner/embedded/upc] \
+//	    [-version 2026-05-26-1] \
+//	    [-source-label paliad-dev-supabase]
+//
+// The generator applies migrations against DATABASE_URL before
+// SELECTing (so the snapshot always matches schema HEAD). Idempotent —
+// running twice with the same DB state produces the same JSON.
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/jmoiron/sqlx"
+	_ "github.com/lib/pq"
+
+	"mgit.msbls.de/m/paliad/internal/db"
+	"mgit.msbls.de/m/paliad/pkg/litigationplanner"
+)
+
+const (
+	defaultOutput      = "./pkg/litigationplanner/embedded/upc"
+	defaultSourceLabel = ""
+)
+
+// Meta is the version block written to meta.json. The embedded sub-
+// package re-defines this type so consumers can decode it without
+// importing the cmd; the cmd holds the canonical write shape.
+type Meta struct {
+	Version           string    `json:"version"`
+	GeneratedAt       time.Time `json:"generated_at"`
+	PaliadCommit      string    `json:"paliad_commit,omitempty"`
+	SourceDBLabel     string    `json:"source_db_label,omitempty"`
+	RuleCount         int       `json:"rule_count"`
+	ProceedingCount   int       `json:"proceeding_count"`
+	TriggerEventCount int       `json:"trigger_event_count"`
+	HolidayCount      int       `json:"holiday_count"`
+	CourtCount        int       `json:"court_count"`
+}
+
+// EmbeddedHoliday is the holiday row shape the embedded snapshot
+// stores. JSON tags mirror paliad.holidays so the generator's SELECT
+// scans onto it directly + the embedded HolidayCalendar reads the
+// same tag.
+type EmbeddedHoliday struct {
+	Date        string  `db:"date_iso" json:"date"`
+	Name        string  `db:"name" json:"name"`
+	Country     *string `db:"country" json:"country,omitempty"`
+	Regime      *string `db:"regime" json:"regime,omitempty"`
+	State       *string `db:"state" json:"state,omitempty"`
+	HolidayType string  `db:"holiday_type" json:"holiday_type"`
+}
+
+// EmbeddedCourt is the court row shape the embedded snapshot stores.
+type EmbeddedCourt struct {
+	ID        string  `db:"id" json:"id"`
+	Code      string  `db:"code" json:"code"`
+	NameDE    string  `db:"name_de" json:"name_de"`
+	NameEN    string  `db:"name_en" json:"name_en"`
+	Country   string  `db:"country" json:"country"`
+	Regime    *string `db:"regime" json:"regime,omitempty"`
+	CourtType string  `db:"court_type" json:"court_type"`
+	ParentID  *string `db:"parent_id" json:"parent_id,omitempty"`
+	SortOrder int     `db:"sort_order" json:"sort_order"`
+}
+
+func main() {
+	output := flag.String("output", defaultOutput, "directory to write JSON files into")
+	version := flag.String("version", "", "explicit snapshot version (auto-derived if empty)")
+	sourceLabel := flag.String("source-label", defaultSourceLabel, "label for source_db in meta.json")
+	flag.Parse()
+
+	url := os.Getenv("DATABASE_URL")
+	if url == "" {
+		log.Fatal("DATABASE_URL must be set")
+	}
+
+	if err := db.ApplyMigrations(url); err != nil {
+		log.Fatalf("apply migrations: %v", err)
+	}
+
+	pool, err := sqlx.Connect("postgres", url)
+	if err != nil {
+		log.Fatalf("connect: %v", err)
+	}
+	defer pool.Close()
+
+	ctx := context.Background()
+	if err := run(ctx, pool, *output, *version, *sourceLabel); err != nil {
+		log.Fatalf("snapshot: %v", err)
+	}
+}
+
+func run(ctx context.Context, pool *sqlx.DB, output, version, sourceLabel string) error {
+	if err := os.MkdirAll(output, 0o755); err != nil {
+		return fmt.Errorf("mkdir output: %w", err)
+	}
+
+	// 1. Proceeding types — UPC + active only. The unified upc.apl row
+	// from B1 mig 134 is included; the 3 archived old appeal codes
+	// (is_active=false) are filtered out by the WHERE.
+	var procs []litigationplanner.ProceedingType
+	if err := pool.SelectContext(ctx, &procs, `
+		SELECT id, code, name, name_en, description, jurisdiction,
+		       category, default_color, sort_order, is_active,
+		       trigger_event_label_de, trigger_event_label_en,
+		       appeal_target
+		  FROM paliad.proceeding_types
+		 WHERE jurisdiction = 'UPC' AND is_active = true
+		 ORDER BY sort_order, id`); err != nil {
+		return fmt.Errorf("select proceeding_types: %w", err)
+	}
+
+	if len(procs) == 0 {
+		return fmt.Errorf("no active UPC proceeding_types — refusing to write empty snapshot")
+	}
+
+	procIDs := make([]int, 0, len(procs))
+	for _, p := range procs {
+		procIDs = append(procIDs, p.ID)
+	}
+
+	// 2. Deadline rules — published + active rules for those proceedings.
+	const ruleCols = `id, proceeding_type_id, parent_id, submission_code, name, name_en,
+		description, primary_party, event_type, duration_value,
+		duration_unit, timing, rule_code, deadline_notes, deadline_notes_en, sequence_order,
+		alt_duration_value, alt_duration_unit, alt_rule_code,
+		anchor_alt, concept_id, legal_source, is_spawn, spawn_label, is_active,
+		created_at, updated_at,
+		trigger_event_id, spawn_proceeding_type_id, combine_op, condition_expr,
+		priority, is_court_set, lifecycle_state, draft_of, published_at,
+		choices_offered, applies_to_target`
+
+	q, args, err := sqlx.In(`
+		SELECT `+ruleCols+`
+		  FROM paliad.deadline_rules
+		 WHERE proceeding_type_id IN (?)
+		   AND is_active = true
+		   AND lifecycle_state = 'published'
+		 ORDER BY proceeding_type_id, sequence_order`, procIDs)
+	if err != nil {
+		return fmt.Errorf("build rules IN: %w", err)
+	}
+	q = pool.Rebind(q)
+	var rules []litigationplanner.Rule
+	if err := pool.SelectContext(ctx, &rules, q, args...); err != nil {
+		return fmt.Errorf("select rules: %w", err)
+	}
+
+	// 3. Trigger events referenced by any UPC rule's trigger_event_id.
+	triggerIDSet := make(map[int64]struct{})
+	for _, r := range rules {
+		if r.TriggerEventID != nil {
+			triggerIDSet[*r.TriggerEventID] = struct{}{}
+		}
+	}
+	var triggers []litigationplanner.TriggerEvent
+	if len(triggerIDSet) > 0 {
+		triggerIDs := make([]int64, 0, len(triggerIDSet))
+		for id := range triggerIDSet {
+			triggerIDs = append(triggerIDs, id)
+		}
+		q, args, err := sqlx.In(`
+			SELECT id, code, name, name_de, description, is_active, created_at
+			  FROM paliad.trigger_events
+			 WHERE id IN (?)
+			 ORDER BY id`, triggerIDs)
+		if err != nil {
+			return fmt.Errorf("build triggers IN: %w", err)
+		}
+		q = pool.Rebind(q)
+		if err := pool.SelectContext(ctx, &triggers, q, args...); err != nil {
+			return fmt.Errorf("select trigger_events: %w", err)
+		}
+	}
+
+	// 4. Holidays — DE national + UPC regime entries. The embedded
+	// calendar serves UPC computations so both axes matter.
+	var holidays []EmbeddedHoliday
+	if err := pool.SelectContext(ctx, &holidays, `
+		SELECT to_char(date, 'YYYY-MM-DD') AS date_iso,
+		       name, country, regime, state, holiday_type
+		  FROM paliad.holidays
+		 WHERE country = 'DE' OR regime = 'UPC'
+		 ORDER BY date, name`); err != nil {
+		return fmt.Errorf("select holidays: %w", err)
+	}
+
+	// 5. Courts — UPC subset.
+	var courts []EmbeddedCourt
+	if err := pool.SelectContext(ctx, &courts, `
+		SELECT id, code, name_de, name_en, country, regime, court_type, parent_id, sort_order
+		  FROM paliad.courts
+		 WHERE is_active = true
+		   AND (regime = 'UPC' OR court_type LIKE 'upc%')
+		 ORDER BY sort_order, id`); err != nil {
+		return fmt.Errorf("select courts: %w", err)
+	}
+
+	// 6. Compose meta.
+	meta := Meta{
+		Version:           resolveVersion(version, output),
+		GeneratedAt:       time.Now().UTC().Truncate(time.Second),
+		PaliadCommit:      gitCommitShort(),
+		SourceDBLabel:     sourceLabel,
+		RuleCount:         len(rules),
+		ProceedingCount:   len(procs),
+		TriggerEventCount: len(triggers),
+		HolidayCount:      len(holidays),
+		CourtCount:        len(courts),
+	}
+
+	// 7. Write each file.
+	files := []struct {
+		name string
+		data any
+	}{
+		{"proceeding_types.json", procs},
+		{"rules.json", rules},
+		{"trigger_events.json", triggers},
+		{"holidays.json", holidays},
+		{"courts.json", courts},
+		{"meta.json", meta},
+	}
+	for _, f := range files {
+		path := filepath.Join(output, f.name)
+		buf, err := json.MarshalIndent(f.data, "", "  ")
+		if err != nil {
+			return fmt.Errorf("marshal %s: %w", f.name, err)
+		}
+		buf = append(buf, '\n')
+		if err := os.WriteFile(path, buf, 0o644); err != nil {
+			return fmt.Errorf("write %s: %w", path, err)
+		}
+	}
+
+	log.Printf("snapshot written: version=%s rules=%d proceedings=%d triggers=%d holidays=%d courts=%d → %s",
+		meta.Version, meta.RuleCount, meta.ProceedingCount,
+		meta.TriggerEventCount, meta.HolidayCount, meta.CourtCount, output)
+	return nil
+}
+
+// resolveVersion picks a date-stamped version slug, bumping the suffix
+// past any pre-existing same-day version found in the existing
+// meta.json. If the caller passed -version, that wins.
+func resolveVersion(explicit, output string) string {
+	if explicit != "" {
+		return explicit
+	}
+	today := time.Now().UTC().Format("2006-01-02")
+	// Read prior meta to detect same-day collisions.
+	prior, err := os.ReadFile(filepath.Join(output, "meta.json"))
+	if err != nil {
+		return today + "-1"
+	}
+	var pm Meta
+	if err := json.Unmarshal(prior, &pm); err != nil {
+		return today + "-1"
+	}
+	if !strings.HasPrefix(pm.Version, today+"-") {
+		return today + "-1"
+	}
+	// Same day: bump the suffix.
+	suffix := pm.Version[len(today)+1:]
+	var n int
+	if _, err := fmt.Sscanf(suffix, "%d", &n); err != nil {
+		return today + "-1"
+	}
+	return fmt.Sprintf("%s-%d", today, n+1)
+}
+
+// gitCommitShort returns the short SHA of the paliad checkout. Best-
+// effort — empty string when we're not in a git checkout.
+func gitCommitShort() string {
+	out, err := exec.Command("git", "rev-parse", "--short", "HEAD").Output()
+	if err != nil {
+		return ""
+	}
+	return strings.TrimSpace(string(out))
+}

cmd/server/main.go

@@ -165,6 +165,7 @@ func main() {
 		sysAuditSvc := services.NewSystemAuditLogService(pool)
 		checklistTemplateSvc := services.NewChecklistTemplateService(pool, checklistCatalogSvc, sysAuditSvc, users)
 		svcBundle = &handlers.Services{
+			Pool:           pool,
 			Project:        projectSvc,
 			Team:           teamSvc,
 			PartnerUnit:    partnerUnitSvc,
@@ -218,6 +219,10 @@ func main() {
 			// is captured into __meta of every export and printed in the
 			// embedded README.
 			Export: services.NewExportService(pool, branding.Name),
+			// t-paliad-265 / m/paliad#96 — per-event-card optional choices.
+			EventChoice: services.NewEventChoiceService(pool, projectSvc, users),
+			// Slice D (m/paliad#124 §5, mig 145) — named scenario compositions.
+			Scenario: services.NewScenarioService(pool, projectSvc, rules),
 		}
 
 		// t-paliad-246 Slice A — Backup Mode runner. Wired only when

cmd/server/main_smoke_test.go

@@ -98,6 +98,51 @@ func TestBootSmoke(t *testing.T) {
 	if body := strings.TrimSpace(rec.Body.String()); body != "ok" {
 		t.Errorf("GET /healthz: body=%q; want \"ok\"", body)
 	}
+
+	// (4) Readiness probe. With a nil Services bundle the endpoint MUST
+	// report 503 — that's the contract documented in handlers/handlers.go.
+	// A separate svc-with-Pool case is exercised in TestHealthReady (live).
+	rec = httptest.NewRecorder()
+	req = httptest.NewRequest(http.MethodGet, "/health/ready", nil)
+	mux.ServeHTTP(rec, req)
+	if rec.Code != http.StatusServiceUnavailable {
+		t.Errorf("GET /health/ready (nil svc): status=%d; want 503", rec.Code)
+	}
+}
+
+// TestHealthReady_Live asserts the readiness probe answers 200 when the
+// pool is reachable, 503 when it isn't. Requires TEST_DATABASE_URL.
+//
+// Why a separate test: TestBootSmoke runs Register with svc=nil to keep
+// its setup minimal; the pool-reachable path needs the pool wired in
+// through svc.Pool. Two tests, two assertions, no entanglement.
+func TestHealthReady_Live(t *testing.T) {
+	url := os.Getenv("TEST_DATABASE_URL")
+	if url == "" {
+		t.Skip("TEST_DATABASE_URL not set — skipping live readiness probe")
+	}
+
+	if err := db.ApplyMigrations(url); err != nil {
+		t.Fatalf("db.ApplyMigrations: %v", err)
+	}
+	pool, err := db.OpenPool(url)
+	if err != nil {
+		t.Fatalf("open pool: %v", err)
+	}
+
+	mux := http.NewServeMux()
+	authClient := auth.NewClient("https://test.invalid", "anon-key", []byte("test-secret"))
+	handlers.Register(mux, authClient, "", &handlers.Services{Pool: pool})
+
+	rec := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/health/ready", nil)
+	mux.ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Errorf("GET /health/ready (live pool): status=%d, body=%q; want 200", rec.Code, rec.Body.String())
+	}
+	if body := strings.TrimSpace(rec.Body.String()); body != "ready" {
+		t.Errorf("GET /health/ready (live pool): body=%q; want \"ready\"", body)
+	}
 }
 
 // embeddedMigrationVersions returns every N where N_*.up.sql exists in

docs/cicd-runner-setup-2026-05-25.md

@@ -0,0 +1,181 @@
+# CI/CD runner setup — paliad
+
+**Companion to:** `docs/design-cicd-pre-deploy-gate-2026-05-25.md` (Slice A, t-paliad-282 / m/paliad#114)
+**Date:** 2026-05-25
+**Audience:** mlake / mriver admin (m or head)
+
+Slice A's `.gitea/workflows/test.yaml` requires (a) at least one online Gitea Actions runner and (b) a Dokploy API token wired as a repo secret. Both are one-time setup actions that paliad's source tree cannot perform itself — they live on infra-side. This doc lists them so the workflow can go green on its first run.
+
+---
+
+## 0. Pre-flight: what already exists
+
+Verified live (2026-05-25 cronus inventor shift):
+
+- Gitea 1.24.4 on `mgit.msbls.de`, `has_actions: true` on `m/paliad`.
+- `/api/v1/admin/actions/runners` reports **2 runners** registered. They are likely the shared runners used by `m/mGreen` and `m/mGeo` (both have `.gitea/workflows/deploy.yml` with `runs-on: self-hosted`).
+- `m/paliad/actions/tasks` reports `total_count=0` — paliad has never run a workflow yet.
+
+The existing runners may already be capable of running paliad's workflow without further setup. The verification step (§3) below tells you whether they are.
+
+---
+
+## 1. Runner placement decision (m's Q11.1)
+
+m's pick: **mriver**.
+
+Rationale: mriver hosts the mai worker fleet but workers spend most of their time waiting on Anthropic. mlake's Dokploy + Swarm workload is more contended. A new runner on mriver adds the least pressure to either box.
+
+If mriver is offline or saturated when CI first fires, fall back to the existing mlake-side runners (they're already registered; no provisioning needed).
+
+---
+
+## 2. One-time setup (admin steps)
+
+### 2.1 Register a new Gitea Actions runner on mriver
+
+```bash
+# On mriver, as m:
+# 1. Download the act_runner binary (matching Gitea 1.24.x)
+curl -L -o /usr/local/bin/act_runner \
+  https://gitea.com/gitea/act_runner/releases/download/v0.2.13/act_runner-0.2.13-linux-amd64
+chmod +x /usr/local/bin/act_runner
+
+# 2. Get a runner registration token. In the Gitea UI:
+#    /admin → Actions → Runners → "Create new Runner"
+#    (or org-scope: /m/paliad/settings/actions/runners)
+# Copy the token.
+
+# 3. Register
+mkdir -p ~/act_runner && cd ~/act_runner
+act_runner register --no-interactive \
+  --instance https://mgit.msbls.de \
+  --token <REGISTRATION_TOKEN> \
+  --name mriver-paliad-1 \
+  --labels ubuntu-latest:docker://node:20-bookworm
+
+# 4. Run as a systemd unit (preferred) or as a session daemon
+# Systemd unit example: /etc/systemd/system/act_runner.service
+#   [Unit]
+#   Description=Gitea Actions runner
+#   After=network.target
+#   [Service]
+#   User=m
+#   WorkingDirectory=/home/m/act_runner
+#   ExecStart=/usr/local/bin/act_runner daemon
+#   Restart=on-failure
+#   [Install]
+#   WantedBy=multi-user.target
+sudo systemctl enable --now act_runner
+sudo systemctl status act_runner
+```
+
+**Why `ubuntu-latest:docker://node:20-bookworm` for the label?** Gitea Actions' `runs-on: ubuntu-latest` resolves via the runner's label map. Mapping it to a Docker image gives the workflow a sandbox with Docker available — required for our Postgres service container in `test.yaml`. mriver should have Docker (for `paliadin-shim`); if not, install it.
+
+### 2.2 Register the Dokploy API token as a repo secret
+
+The workflow's `deploy` job needs `secrets.DOKPLOY_TOKEN`. Use the existing project-wide Dokploy API key (the one stored in `~/.claude/skills/mai-dokploy/SKILL.md`).
+
+In the Gitea UI:
+- Navigate to `https://mgit.msbls.de/m/paliad/settings/actions/secrets`
+- Click "Add secret"
+  - Name: `DOKPLOY_TOKEN`
+  - Value: `mai-ottosSyRHMhmLhhhXaCbKzbqKBuSqzqEtmKDOPelPCeimTaYsbmaVslVyEgJZGCIxVdz`
+
+Or via API (mAi identity):
+```bash
+curl --netrc-file ~/.netrc-mai -sS -X POST \
+  -H "Content-Type: application/json" \
+  https://mgit.msbls.de/api/v1/repos/m/paliad/actions/secrets/DOKPLOY_TOKEN \
+  -d '{"data":"mai-ottosSyRHMhmLhhhXaCbKzbqKBuSqzqEtmKDOPelPCeimTaYsbmaVslVyEgJZGCIxVdz"}'
+```
+
+(Requires repo-owner permission. If mAi lacks it, m runs it.)
+
+---
+
+## 3. Verify the runner sees the workflow
+
+After (2.1) + (2.2):
+
+```bash
+# Push the Slice A branch (the one this doc lives on)
+git push origin mai/cronus/coder-cicd-slice-a
+
+# Confirm the runner picked up the job
+curl --netrc-file ~/.netrc-mai -sS \
+  "https://mgit.msbls.de/api/v1/repos/m/paliad/actions/tasks?limit=5" | jq '.'
+```
+
+A new task per job should appear (build, test-go). If `total_count` stays 0, the runner labels don't match the workflow's `runs-on`. Re-register with `--labels ubuntu-latest` (no docker:// suffix) and the existing runners on mlake will pick it up via shell mode.
+
+---
+
+## 4. Soft-launch (m's Q11.4)
+
+m's pick: **keep both Dokploy auto-deploy and the workflow's deploy step alive for ~1 week. After ≥5 successful green deploys via the workflow, disable Dokploy's autoDeploy in the Dokploy UI for the paliad compose.**
+
+While both are live, every push to main fires:
+1. Dokploy webhook (existing path) → deploys immediately, no gate.
+2. Gitea workflow → on green, ALSO calls `compose.deploy`.
+
+The second call is idempotent — if Dokploy already deployed the same commit, this is a no-op. The workflow's value during soft-launch is the **gate signal**: a red workflow on a green main = the bad migration shipped via the unguarded webhook and broke prod, and the workflow is shouting about it.
+
+After confidence builds:
+1. In the Dokploy UI, navigate to the paliad compose → Settings.
+2. Toggle "Auto Deploy" off.
+3. Save.
+
+From this point, the only path to deploy is the workflow's deploy job. Red workflow = no deploy.
+
+---
+
+## 5. What Slice A catches today — and what it doesn't
+
+After this branch (`mai/cronus/coder-cicd-slice-a`) merges to main:
+
+### Catches (active in CI)
+
+- **Build breakage** — `go build`, `go vet`, `bun run build`. Red gate, no deploy.
+- **Slot collisions** — `TestMigrations_NoDuplicateSlot` runs without a DB. A PR adding migration N when version N already exists fails at gate time. This is the brunel-class catch (m/paliad#114 ~13:20 outage).
+- **New-migration shape errors (hermes class)** — `TestBootSmoke` runs `ApplyMigrations` against the snapshot-restored DB. New migs from this PR get applied for real; any column/relation/syntax error fails the gate before merge.
+- **New-migration ownership errors (mig 129 42501 class)** — `TestMigrations_EndToEndAsAppRole` runs `ApplyMigrations` connected as `postgres` (NON-superuser on `supabase/postgres:15.8.1.060`, same role topology as youpc-supabase prod). Any migration that assumes supabase_admin privilege fails with the same `42501 must be owner` error class that took paliad.de offline on 2026-05-25.
+- **Readiness probe regressions** — `TestHealthReady_Live` confirms `/health/ready` returns 200 against a live pool, 503 against a nil pool.
+- **Pure-Go test regressions** — `go test ./internal/... ./cmd/...` runs without `TEST_DATABASE_URL` (live-DB service tests skip the same way they do on a developer laptop without a scratch DB).
+
+### Mechanism — the snapshot approach
+
+CI's scratch DB starts from a `pg_dump` of youpc-supabase paliad schema +
+`paliad.applied_migrations` rows, committed to `internal/db/testdata/prod-snapshot.sql`. After restore, the scratch DB is at "paliad HEAD of snapshot" and `ApplyMigrations` sees only this PR's new migrations as pending.
+
+This sidesteps the fresh-DB idempotence problem: several historical migrations (notably mig 037's missing `CREATE EXTENSION pg_trgm`, mig 051's inner `COMMIT;`) can't be replayed from scratch against `supabase/postgres:15.8.1.060`. The snapshot pins everything that's already applied in prod and lets CI focus on what's new — which is what we actually care about for outage prevention.
+
+Snapshot refresh: `make refresh-snapshot` with `PALIAD_PROD_DATABASE_URL` set (see `internal/db/testdata/README.md`).
+
+### Known gap — live-DB service tests don't run in CI
+
+`internal/services/*_test.go` tests with `TEST_DATABASE_URL` set fail against `supabase/postgres:15.8.1.060` with `42P08 inconsistent types deduced for parameter` errors on some INSERT bind paths. The same tests pass against youpc-supabase prod. Cause is unconfirmed — likely subtle differences in type inference between the dockerized image and the prod cluster's configuration. CI today runs `go test ./...` without `TEST_DATABASE_URL` so these tests skip. Not blocking outage prevention; tracked as a follow-up for the post-Slice-A coder.
+
+### Migration cleanup also bundled in this PR
+
+Two surgical migration improvements that surfaced during snapshot debugging — kept here because they're small and harmless:
+
+- **mig 024 + 027** — `ALTER INDEX` / `ALTER POLICY` exception handlers now catch `undefined_object` OR `undefined_table` OR `duplicate_object`. Old handler caught only `undefined_object`; Postgres raises `undefined_table` when the source object never existed and `duplicate_object` when the destination already exists. The expanded handler makes the migrations truly idempotent across the three plausible states: source-still-German (rename succeeds), already-renamed (catches duplicate_object), and fresh-DB-never-had-German (catches undefined_table).
+
+Other migration history bugs (mig 037 missing pg_trgm, mig 051 inner COMMIT) are tracked as a separate cleanup task — not blocking, because the snapshot bypasses them.
+
+### Verification checklist (after Slice A merges)
+
+1. **Workflow green on its first PR run?** Check `/m/paliad/actions`. If not, fix before merging.
+2. **Dokploy `compose.deploy` call succeeds?** The workflow's `deploy` job logs the POST response. A successful response is a Dokploy job ID; a 4xx is an auth or compose-id problem.
+3. **`/health/ready` returns 200 within 5 minutes after a green deploy?** The workflow polls this. If it times out, the migration may have failed silently inside the new container — check `docker logs --tail 50 compose-transmit-multi-byte-driver-v7jth9-web-1` on mlake.
+4. **Reproduce the slot-collision catch locally:** rename `131_…up.sql` to `129_…` (duplicate slot) → workflow MUST fail at `Migration coordination check`. Revert before pushing.
+5. **Reproduce the role-split catch locally:** add a no-op migration `132_test_supersedes.up.sql` containing `REINDEX SYSTEM paliad_scratch;` (requires superuser). Workflow MUST fail at `Migration end-to-end (deploy role)`. Revert before pushing.
+
+---
+
+## 6. Future polish (Slice D, m's Q4 R-pick)
+
+`mai-test` post-merge shift: once Slice A is stable, wire a Gitea webhook on push-to-main that fires `/mai-test` as a follow-up shift. It runs the broader smoke + integration suite and posts results as a Gitea commit status. Not blocking; the gate doesn't depend on it.
+
+Implementation belongs in `m/mAi` (the mai webhook handler), not in paliad. Out of scope for Slice A.

docs/design-event-card-choices-2026-05-25.md

@@ -0,0 +1,492 @@
+# Design — Per-event-card optional choices on the Verfahrensablauf timeline
+
+**Author:** atlas (inventor)
+**Date:** 2026-05-25
+**Task:** t-paliad-265 (m/paliad#96)
+**Branch:** `mai/atlas/inventor-per-event-card`
+**Status:** READY FOR REVIEW — m gates inventor → coder transition.
+
+---
+
+## 0. TL;DR
+
+> **m's decisions landed 2026-05-25** — see §11. Persisted table, caret+popover, per-card-overrides-page-level, and m chose to bundle Slice A + Slice B into one coder shift (over the inventor (R) of "Slice A first"). All other picks matched inventor recommendations.
+
+The Verfahrensablauf timeline today carries **two** projection knobs at the page level — `side` (who-we-are) and `appellant` (who-initiated). Both are **global** for the whole timeline. m wants three more knobs, but **per event card**, not page-level:
+
+1. **Appellant per decision card** — if a decision is appealable, the user picks which side appealed (Claimant / Defendant / Both / None). Different decisions in the same timeline can have different appellants.
+2. **Include Nichtigkeitswiderklage on Klageerwiderung** — toggling this on a single Klageerwiderung card flips on the existing `with_ccr` flag for everything downstream of that card.
+3. **Skip an optional event** — for any rule marked `priority='optional'`, a per-card "don't consider for this case" toggle hides downstream consequences.
+
+The flow these choices drive is **already there** — `condition_expr` jsonb gates (`with_ccr`, `with_amend`, `with_cci`) plus the page-level appellant selector. What's missing is (a) **per-card** scope and (b) **per-project persistence**.
+
+Recommendation: persist choices in a new `paliad.project_event_choices` table; expose them through a popover-on-caret affordance on the relevant cards only; map them into the existing `CalcOptions.Flags` + a new per-rule `Appellants` map at projection time. Two slices: **Slice A** (appellant-per-decision + skip-optional, narrow + bounded), **Slice B** (include-CCR-on-Klageerwiderung, requires per-card flag-scoping in the projection engine — bigger).
+
+---
+
+## 1. Premises verified live (before designing)
+
+CLAUDE.md / memory / issue text can drift; the live system can't. Each load-bearing premise below was probed against the live DB or live source on 2026-05-25.
+
+### Schema
+
+- **Migration tracker at 127** (`paliad.paliad_schema_migrations`). Next migration: 128. No new table for `project_event_choices` exists today.
+- **`paliad.deadline_rules` carries `condition_expr jsonb`** already. The flag-evaluation engine (`internal/services/fristenrechner.go:208 Calculate`, `evalConditionExpr` at line ~947) walks the jsonb tree and skips rules whose gate is unsatisfied. Today's gates are `{"flag":"with_ccr"}`, `{"flag":"with_amend"}`, `{"flag":"with_cci"}`, and `{"op":"and","args":[…]}` combinations.
+- **`with_ccr` is the existing Nichtigkeitswiderklage gate.** Verified live: 7 upc.inf.cfi rules gate on it (`upc.inf.cfi.reply`, `…rejoin`, `…ccr`, `…def_to_ccr`, `…reply_def_ccr`, `…rejoin_reply_ccr`, plus `upc.inf.cfi.app_to_amend` which additionally requires `with_amend`).
+- **`priority` column** has 4 values: `mandatory`, `recommended`, `optional`, `informational`. Live counts (deadline_rules table-wide): 230 mandatory / 18 recommended / 6 optional / (informational not in count, must be 0 or absent). The "skip optional" affordance keys off `priority='optional'`.
+- **`event_type` discriminator** exists with values `filing`, `decision`, `hearing`. The "appellant-per-decision" affordance keys off `event_type='decision'`. Live: every decision rule has `primary_party='court'`.
+- **`paliad.projects.our_side`** exists (column added before mig 112; values today include `claimant|defendant|applicant|appellant|respondent|third_party|other`). It is the broad project-level side axis t-paliad-257 / #88 hooked into.
+- **NO `appellant` column on `paliad.projects`** — the appellant axis lives only in the URL query (`?appellant=claimant|defendant`) in `client/verfahrensablauf.ts:73-89`.
+
+### Frontend
+
+- `frontend/src/client/views/verfahrensablauf-core.ts` is the **shared rendering core** for both `/tools/verfahrensablauf` and `/tools/fristenrechner`. Per-card UI affordances added here surface on both pages automatically.
+- `bucketDeadlinesIntoColumns(deadlines, {side, appellant})` (line 496) is the **pure routing primitive**; column placement is computed without DOM. Unit-tested in `verfahrensablauf-core.test.ts`.
+- `deadlineCardHtml(dl, {showParty, editable, showNotes})` (line 254) is the **per-card renderer**. There is no per-card props channel for "choices" yet — that's the surface this design extends.
+- `client/verfahrensablauf.ts` and `client/fristenrechner.ts` both manage `currentSide` + `currentAppellant` in-memory and round-trip them through the URL (`writeSideToURL` / `writeAppellantToURL`). The pattern is mature; this design mirrors it for the new state when state stays URL-bound, and lifts it into a server-persisted store when state stays per-project.
+- `APPELLANT_AXIS_PROCEEDINGS` set (verfahrensablauf.ts:52-62) gates the page-level appellant selector to appeal-flavoured proceedings only. The per-card appellant affordance MUST NOT depend on this set — any first-instance decision is a potential appeal trigger (e.g. LG-Urteil → Berufung, BPatG-Entscheidung → BGH-Rechtsbeschwerde).
+
+### Surfaces in scope
+
+- **`/tools/verfahrensablauf`** — abstract browse, no project context. Per-card choices here are ephemeral (URL-bound) — there's no project to persist into.
+- **`/tools/fristenrechner`** — concrete projection, optionally project-bound via `?project=<id>` (`currentStep1Context.kind === "project"`). When project-bound, per-card choices persist to `paliad.project_event_choices`. When unbound, URL only.
+- **`/projects/{id}` Verlauf tab (SmartTimeline)** — separate widget (per `docs/design-smart-timeline-2026-05-08.md`); does **NOT** use `renderColumnsBody`. Per-card choices are NOT in scope for the SmartTimeline in v1 — the Verfahrensablauf core is.
+
+### What is NOT premised
+
+- The deadline_rules → procedural_events rename (#93) is **not assumed shipped**. This design uses `deadline_rules`/`rule_code` vocabulary throughout and flags the rename touch-points in §6.
+- The per-card UI does NOT require new server-side priority/event_type semantics. Both `priority='optional'` and `event_type='decision'` exist on every row.
+
+---
+
+## 2. Vision + scope
+
+m's vision (verbatim 2026-05-25 15:12):
+
+> We still have no choice to say that a specific party appealed. We may need selections within the event cards on the timeline to change it? For example for a decision we could check Appeal by... or in Klageerwiderung we can chose to include a Nichtigkeitswiderklage. Or with any optional event we can select not to consider it (because someone decided not to file it).
+
+### What changes
+
+- A **caret affordance** (▾) appears on the right edge of cards that have at least one applicable choice-kind. Click → small popover with the choices. Cards without an applicable choice render unchanged.
+- A **`choices_offered` jsonb column** on `paliad.deadline_rules` declares which choice-kinds each rule offers. Three kinds in v1:
+  - `appellant` — applicable to rules with `event_type='decision'` (no static list; engine decides).
+  - `include_ccr` — applicable to the single Klageerwiderung rule per proceeding (today: `upc.inf.cfi.def`, `de.inf.lg.erwidg`).
+  - `skip` — applicable to any rule with `priority='optional'`.
+- A **new persistence table** `paliad.project_event_choices(project_id, rule_code, choice_kind, choice_value)` holds the user's choices. Per-project, audit-logged via `paliad.system_audit_log`.
+- A **projection-time merge** turns the persisted choices into `CalcOptions.Flags` and a new `PerCardAppellants map[ruleCode]string` field, then re-runs the existing projection engine. No new flag types; `with_ccr` is the same `with_ccr`.
+
+### What stays
+
+- `bucketDeadlinesIntoColumns` and `renderColumnsBody` are extended (new opts), not replaced.
+- `condition_expr` jsonb gating semantics are unchanged. Per-card `include_ccr` choice simply means "set `with_ccr` in the flag set for this projection" — same engine.
+- Page-level `side` / `appellant` selectors stay. The per-card appellant choice is an **override layer** on top of the page-level appellant (Q4 below).
+- URL-state plumbing (`?side=…`, `?appellant=…`) stays. The page-level URL params remain the only state for unbound `/tools/verfahrensablauf`.
+
+### Out of scope (v1)
+
+- Per-card choices on the SmartTimeline (project Verlauf tab). Deferred to a follow-up when SmartTimeline matures.
+- Versioning of choices over time ("the appellant changed mid-case", "the CCR was withdrawn"). Choices are last-write-wins.
+- Cross-project propagation of choices.
+- Implementing the choice flow (coder task per slice; this is design-only).
+- A "what-if scenarios" mode (saved named scenarios).
+
+---
+
+## 3. Data model
+
+### 3.1 The new table
+
+```sql
+-- migration 128_project_event_choices.up.sql
+CREATE TABLE paliad.project_event_choices (
+  id          uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  project_id  uuid NOT NULL REFERENCES paliad.projects(id) ON DELETE CASCADE,
+  rule_code   text NOT NULL,                       -- e.g. "RoP.029.a" or "de.inf.lg.urteil"
+  choice_kind text NOT NULL,                       -- 'appellant' | 'include_ccr' | 'skip'
+  choice_value text NOT NULL,                      -- value namespace per kind (see §3.3)
+  created_by  uuid REFERENCES paliad.users(id) ON DELETE SET NULL,
+  created_at  timestamptz NOT NULL DEFAULT now(),
+  updated_by  uuid REFERENCES paliad.users(id) ON DELETE SET NULL,
+  updated_at  timestamptz NOT NULL DEFAULT now(),
+
+  -- One choice per (project, rule_code, kind). Re-pick is an UPDATE.
+  UNIQUE (project_id, rule_code, choice_kind)
+);
+
+CREATE INDEX project_event_choices_project_idx
+  ON paliad.project_event_choices (project_id);
+
+-- RLS: same `paliad.can_see_project(project_id)` predicate as paliad.deadlines.
+ALTER TABLE paliad.project_event_choices ENABLE ROW LEVEL SECURITY;
+CREATE POLICY project_event_choices_select ON paliad.project_event_choices
+  FOR SELECT USING (paliad.can_see_project(project_id));
+CREATE POLICY project_event_choices_mutate ON paliad.project_event_choices
+  FOR ALL USING (paliad.can_see_project(project_id))
+  WITH CHECK (paliad.can_see_project(project_id));
+```
+
+**Why this shape:**
+- Tall not wide — adding a 4th choice-kind in slice C means one more allowed `choice_kind` value, no DDL.
+- `rule_code` is the join key against `paliad.deadline_rules` (which already uses `rule_code` widely — `Calculate`, `AnchorOverrides`, the projection). Stable across rule renames provided the rename keeps the same `rule_code`.
+- UNIQUE per `(project, rule_code, kind)` makes the choice idempotent — re-picking the appellant overwrites, doesn't accumulate.
+- ON DELETE CASCADE follows the project — when a project is hard-deleted (rare; usually soft-status), the choices go with it.
+
+### 3.2 The opt-in column on `paliad.deadline_rules`
+
+```sql
+-- migration 128_project_event_choices.up.sql (same migration)
+ALTER TABLE paliad.deadline_rules
+  ADD COLUMN choices_offered jsonb;
+
+-- Example seeded values (in the same migration's data-fix block):
+--
+--   upc.inf.cfi.def → '{"include_ccr": [true, false]}'
+--   de.inf.lg.erwidg → '{"include_ccr": [true, false]}'
+--   upc.inf.cfi.decision → '{"appellant": ["claimant", "defendant", "both", "none"]}'
+--   de.inf.lg.urteil → '{"appellant": ["claimant", "defendant", "both", "none"]}'
+--   (every event_type='decision' rule)
+--   upc.inf.cfi.ccr (priority='optional') → '{"skip": [true, false]}'
+--   (every priority='optional' rule)
+```
+
+**Alternative considered + rejected:** infer offering at projection-time from `(event_type, priority, submission_code)` heuristics. Rejected because:
+- The Klageerwiderung rule is identified only by its `submission_code` slug. Tying the engine to a hardcoded slug list inside the projection service is brittle (mig 124 + future Wave-1 fixes rename slugs); declaring `choices_offered` in data lets the audit ship them without a code change.
+- A `skip` toggle that's automatically derived from `priority='optional'` is consistent today but may diverge tomorrow (an optional rule we DON'T want skippable, or a non-optional rule we DO want skippable). The opt-in jsonb keeps the choice axis decoupled from `priority`.
+
+### 3.3 Value namespaces per kind
+
+| `choice_kind` | `choice_value` valid set | Default when no row exists |
+|---|---|---|
+| `appellant` | `"claimant"` / `"defendant"` / `"both"` / `"none"` | inherits page-level appellant (URL `?appellant=`), else `null` (treated as "not yet picked" — render appeal-deadlines greyed) |
+| `include_ccr` | `"true"` / `"false"` | `"false"` (no CCR until user opts in — matches current default flag set) |
+| `skip` | `"true"` / `"false"` | `"false"` (rule renders normally) |
+
+Values are stored as `text` not `boolean` so the same column scales to multi-valued kinds (appellant has 4 values; future kinds may have N). Coercion lives in the service layer.
+
+### 3.4 Audit trail
+
+Every INSERT / UPDATE / DELETE on `project_event_choices` writes a row to `paliad.system_audit_log` (the standard sink mig 102 introduced) with `event_type='project_event_choice.set'` and the changed `(rule_code, kind, value)` in `metadata jsonb`. Pattern mirrors `paliad.deadlines.status_changed` audit rows.
+
+---
+
+## 4. Projection flow
+
+The existing projection engine is a single Go function: `FristenrechnerService.Calculate(ctx, proceedingCode, triggerDateStr, opts CalcOptions)`. Two changes:
+
+### 4.1 Extending `CalcOptions`
+
+```go
+type CalcOptions struct {
+    // ...existing fields...
+    Flags           []string             // <-- already exists
+    AnchorOverrides map[string]string    // <-- already exists
+
+    // NEW — per-card overrides surfaced by the per-event-card choices.
+    // Keyed by deadline_rules.rule_code.
+    //
+    //   PerCardAppellant: when a decision rule's rule_code is in this map,
+    //     the appellant for downstream rules whose parent is THAT decision
+    //     is set to the value here. Overrides any global Appellant.
+    //
+    //   SkipRules: when a rule's rule_code is in this set, the rule is
+    //     suppressed AND its descendants are suppressed. Same suppression
+    //     path as a failed condition_expr gate.
+    //
+    //   IncludeCCRFor: when a rule's rule_code is in this set, the with_ccr
+    //     flag is treated as set in the flag context FROM that rule
+    //     onward (i.e. for that rule's descendants). On v1 with a single
+    //     Klageerwiderung-per-proceeding, this is equivalent to a project-
+    //     wide with_ccr — but the per-card scope leaves room for future
+    //     proceedings with multiple CCR entry points.
+    PerCardAppellant map[string]string   // rule_code → "claimant"|"defendant"|"both"|"none"
+    SkipRules        map[string]struct{} // set of rule_code
+    IncludeCCRFor    map[string]struct{} // set of rule_code
+}
+```
+
+The handler reads `project_event_choices` for the project (if project-bound) and folds them into these fields before calling `Calculate`. When called unbound (URL-only, `/tools/verfahrensablauf` without project), the maps come from URL params instead (see §5.2).
+
+### 4.2 Three engine changes
+
+1. **SkipRules suppression**: in the post-condition_expr filter pass (`Calculate` around line 333 where the gate is evaluated), additionally drop any rule whose `rule_code ∈ opts.SkipRules`. Also drop its descendants (existing `parent_id` walk already handles cascading; just add the new predicate to the keep/drop decision).
+
+2. **IncludeCCRFor scope**: rather than threading a per-rule flag context (expensive change to engine), implement v1 as: **if any rule_code in IncludeCCRFor exists at all, append `"with_ccr"` to `opts.Flags`** before the gate-evaluation pass. This is correct for the v1 surface (Klageerwiderung is the only CCR-entry-point per proceeding) but loses the per-card scoping for multi-CCR cases. The full per-rule scope is **Slice B** (§7).
+
+3. **PerCardAppellant routing**: when `bucketDeadlinesIntoColumns` collapses `party=both` rows in the appellant's column, today it consults the global `opts.appellant`. Extend to consult `PerCardAppellant[ruleCode]` first — if present, that drives the collapse for descendants of that decision. Out-of-band: this changes the projection contract subtly. We surface this as **server-computed metadata** on the response (`CalculatedDeadline.AppellantContext`) so the frontend bucketer doesn't need to know about parent-chain walks — the server already does the walk.
+
+### 4.3 Wire shape
+
+The `CalculatedDeadline` Go struct + TS mirror grow one optional field:
+
+```go
+type CalculatedDeadline struct {
+    // ...existing fields...
+    AppellantContext string `json:"appellantContext,omitempty"`
+    // "claimant" | "defendant" | "both" | "none" | "" (default).
+    // Filled by the projection from the user's per-decision choice.
+    // Frontend bucketer prefers this over the page-level appellant.
+}
+```
+
+This keeps the bucketer logic local — no second pass needed.
+
+---
+
+## 5. UI / i18n
+
+### 5.1 Caret + popover affordance
+
+Each rendered card gets, when `choices_offered IS NOT NULL`, a `▾` caret on the right edge of the title line. Click → popover anchored to the caret. Popover renders one block per choice-kind the rule offers (typically one, occasionally two if a rule has both `appellant` and `skip` — none today; design holds for the future).
+
+DOM-wise: `frontend/src/client/views/verfahrensablauf-core.ts` `deadlineCardHtml` grows a `choicesCaret` segment, and a sibling module `client/views/event-card-choices.ts` (new) owns the popover open/close + commit handler. The popover commits via `POST /api/projects/{id}/event-choices` with body `{rule_code, kind, value}`; the response is the updated choice row.
+
+**Why a popover and not inline checkboxes:**
+- Inline would put a checkbox on every decision card + every optional card. ~6 decision cards + ~6 optional cards on a typical UPC.INF.CFI projection is ~12 always-on widgets per timeline. Visual noise + scan cost.
+- Popover defaults to hidden; the caret is a low-noise affordance. The selected choice surfaces as a small chip on the card title line ("Berufung: Beklagter") so the choice is glanceable without re-opening.
+- Mobile + touch: the caret is a 24×24 tap target; the popover is keyboard-dismissable.
+
+**Why not card-hover-reveal:** discoverability + touch failure (no hover on iOS).
+
+### 5.2 URL fallback (no project context)
+
+When `/tools/verfahrensablauf` is opened without a project (the abstract-browse case), per-card choices have no persistence layer. The popover still works, but commits update an **in-memory + URL** state instead:
+
+```
+?event_choices=RoP.029.a:appellant=defendant,upc.inf.cfi.ccr:skip=true
+```
+
+Compact CSV in one URL param. Read at page load, applied to `CalcOptions` via the same `PerCardAppellant` / `SkipRules` / `IncludeCCRFor` route. Shareable, ephemeral. Matches the existing `?side=` + `?appellant=` URL idiom.
+
+### 5.3 Chip indicators
+
+A card with a non-default choice gets a small chip next to the title:
+- Appellant chosen: `Berufung: Beklagter` / `Appeal: Defendant`
+- Include CCR: `mit Nichtigkeitswiderklage` / `with CCR`
+- Skipped: card itself fades to 50% opacity, body adds class `timeline-item--skipped`, chip reads `übersprungen` / `skipped` with an undo arrow.
+
+### 5.4 i18n keys (new)
+
+```
+choices.caret.title              "Optionen für dieses Ereignis"             "Options for this event"
+choices.appellant.title          "Berufung durch ..."                       "Appealed by ..."
+choices.appellant.claimant       "Klägerseite"                              "Claimant side"
+choices.appellant.defendant      "Beklagtenseite"                           "Defendant side"
+choices.appellant.both           "beide Parteien"                           "both parties"
+choices.appellant.none           "keine Berufung"                           "no appeal"
+choices.include_ccr.title        "Nichtigkeitswiderklage einbeziehen"       "Include nullity counterclaim"
+choices.skip.title               "Für diese Akte überspringen"              "Skip for this case"
+choices.skipped.chip             "übersprungen"                             "skipped"
+choices.reset                    "Auswahl zurücksetzen"                     "Reset choice"
+```
+
+### 5.5 What's removed
+
+The page-level appellant selector (URL `?appellant=`) stays for **non-decision proceedings** (the Appeal-CoA case where the appellant axis is the whole-timeline framing, not a per-decision choice). But for first-instance proceedings (UPC.INF, DE.INF.LG, etc.), the appellant axis migrates from page-level to per-decision card. The page-level selector hides when the proceeding has decision rules with `choices_offered.appellant` declared — which is the cleaner UX (one knob, in the right place).
+
+---
+
+## 6. Services + handlers (new surface)
+
+### 6.1 Go service
+
+```go
+// internal/services/event_choice_service.go (new)
+type EventChoiceService struct {
+    db *sqlx.DB
+}
+
+func (s *EventChoiceService) ListForProject(ctx context.Context, projectID uuid.UUID) ([]ProjectEventChoice, error)
+func (s *EventChoiceService) Upsert(ctx context.Context, c ProjectEventChoice) error
+func (s *EventChoiceService) Delete(ctx context.Context, projectID uuid.UUID, ruleCode, kind string) error
+
+// Used by ProjectionService to fold choices into CalcOptions.
+func (s *EventChoiceService) ToCalcOptions(choices []ProjectEventChoice) CalcOptionsAddendum
+```
+
+The `CalcOptionsAddendum` type wraps the three new map/set fields so the merge into the parent `CalcOptions` is one call from the projection handler.
+
+### 6.2 HTTP routes
+
+```
+GET    /api/projects/{id}/event-choices              → []ProjectEventChoice
+PUT    /api/projects/{id}/event-choices              → upsert one (body: {rule_code, kind, value})
+DELETE /api/projects/{id}/event-choices/{rule_code}/{kind} → remove
+```
+
+All gated by `gateOnboarded` + visibilityPredicate (project-team membership).
+
+### 6.3 Projection handler
+
+The existing `POST /api/tools/fristenrechner` handler accepts `flags`, `anchorOverrides`, `priorityDate`, `courtId`. Extend the request shape:
+
+```json
+{
+  "proceedingType": "upc.inf.cfi",
+  "triggerDate": "2026-01-15",
+  "flags": ["with_ccr"],
+  "perCardChoices": [
+    {"rule_code": "RoP.029.a", "kind": "appellant", "value": "defendant"},
+    {"rule_code": "upc.inf.cfi.ccr", "kind": "skip", "value": "true"}
+  ]
+}
+```
+
+Or, when project-bound:
+
+```json
+{
+  "proceedingType": "upc.inf.cfi",
+  "triggerDate": "2026-01-15",
+  "projectId": "abc-123"
+  // server pulls perCardChoices from paliad.project_event_choices
+}
+```
+
+The handler merges either source into `CalcOptions` and runs `Calculate`.
+
+### 6.4 Touch points — files coder will edit
+
+- **DB**: new migration `128_project_event_choices.up.sql` + `.down.sql`. Add `choices_offered` column + seed data.
+- **Go**: `internal/services/event_choice_service.go` (new), `internal/services/fristenrechner.go` (extend `CalcOptions`, projection logic), `internal/handlers/event_choices.go` (new HTTP routes), `internal/handlers/fristenrechner.go` (request shape extension).
+- **Models**: `internal/models/models.go` — `ProjectEventChoice` struct, `CalculatedDeadline.AppellantContext` field.
+- **Frontend**: `frontend/src/client/views/verfahrensablauf-core.ts` (caret + chip in deadlineCardHtml), `frontend/src/client/views/event-card-choices.ts` (new popover module), `frontend/src/client/verfahrensablauf.ts` + `frontend/src/client/fristenrechner.ts` (URL-state plumbing for the unbound case; load project choices for the bound case).
+- **i18n**: `frontend/src/client/i18n.ts` + `frontend/src/i18n-keys.ts` — new keys per §5.4.
+- **Tests**: `internal/services/event_choice_service_test.go` (new), `internal/services/fristenrechner_test.go` (extend with PerCardAppellant + SkipRules cases), `frontend/src/client/views/verfahrensablauf-core.test.ts` (extend bucketing with `perCardAppellant` opt).
+
+### 6.5 Coordination with #93 procedural-events rename
+
+When #93 lands (and the rename ships), this design's `rule_code` references become `procedural_event.code` — same string namespace, cleaner name. Join points:
+- `project_event_choices.rule_code` → `project_event_choices.procedural_event_code` (or stays as a generic string column if #93 keeps `rule_code` as the join key).
+- `deadline_rules.choices_offered` → `procedural_events.choices_offered`.
+
+If #93 ships first, this design's migration applies to `procedural_events` instead. The data shape (jsonb + new join table) is unaffected. If THIS ships first, #93 absorbs the column in its rename.
+
+---
+
+## 7. Slice plan
+
+### Slice A — Appellant per decision + Skip optional event
+
+Two choice-kinds, narrow + bounded, do not change the gate-evaluation engine.
+
+- **DB**: migration 128 adds `project_event_choices` + `choices_offered`. Seed `choices_offered` on all `event_type='decision'` rules and all `priority='optional'` rules.
+- **Service**: `EventChoiceService` CRUD; `CalcOptions.PerCardAppellant` + `CalcOptions.SkipRules`; `Calculate` extension to honour SkipRules suppression + AppellantContext metadata.
+- **HTTP**: 3 new routes (GET / PUT / DELETE on project_event_choices); fristenrechner request extension.
+- **Frontend**: caret + popover on decision cards + optional cards; chip indicators; URL-state for the unbound case; load-on-mount for the bound case.
+- **Tests**: bucketing with PerCardAppellant; service CRUD; gate-suppression with SkipRules.
+
+Ship this slice first. It validates the popover affordance + the persistence layer end-to-end without touching the flag-evaluation engine.
+
+### Slice B — Include Nichtigkeitswiderklage on Klageerwiderung
+
+Wires `IncludeCCRFor` through the flag-evaluation engine. v1 simplification (§4.2 #2) makes this **almost** a no-op for the engine — but the per-card scope semantics need a separate inventor pass to nail down whether the simplification holds for de.inf.lg's CCR analogue (Widerklage auf Nichtigkeit) and for any future proceedings with multiple CCR entry points.
+
+- **DB**: add `include_ccr` to allowed `choice_kind` values + seed `choices_offered = '{"include_ccr": [true, false]}'` on the Klageerwiderung rows (`upc.inf.cfi.def`, `de.inf.lg.erwidg`).
+- **Service**: `CalcOptions.IncludeCCRFor`; the "if non-empty, append with_ccr to Flags" simplification.
+- **Frontend**: the include_ccr popover block (already designed; just enabling the row).
+- **Cross-flow audit**: confirm that the existing 7 upc.inf.cfi cross-flow rules + de.inf.lg analogues fire correctly when with_ccr is set via the per-card path vs. the existing page-level flag checkbox. Existing checkbox stays in v1; deprecation is a Slice C decision.
+
+### Bundling note (per m's Q4 decision 2026-05-25)
+
+A + B ship together. The slice headings above remain as a logical breakdown for the coder to follow when sequencing commits inside the single shift; they are not separate PRs. See §11 Q4 for rationale.
+
+### Slice C — Future choice-kinds
+
+Open-ended; not designed here. Examples surfaced by the t-paliad-067 audit:
+- "Bilateral hearing requested" toggle on hearing rules.
+- "Cost orders requested" toggle on cost-related rules.
+- "Stay applied" toggle on procedural events.
+
+Each new kind = one new allowed `choice_kind` value + one seed row + one popover block. Schema-stable.
+
+---
+
+## 8. Risk assessment
+
+- **Migration risk**: new table + new column, both additive. Down-migration drops table + column + reverts seed. No data loss path. Low risk.
+- **Projection correctness**: PerCardAppellant changes the bucket routing for "both" rows in chains downstream of a decision card. The unit-tested `bucketDeadlinesIntoColumns` carries the existing appellant semantics; extending it without breaking the existing test suite means new tests, not changes to existing ones. Coder MUST add the new tests before changing the bucketer.
+- **Flag-context vs per-rule-flag aliasing**: §4.2 #2 (Slice B) trades per-card precision for engine simplicity. Acceptable in v1 (Klageerwiderung is the only entry point per proceeding) but a known limitation. Document it in `internal/services/fristenrechner.go` doc comment so the next Wave-2 inventor doesn't think it's bug-free.
+- **Page-level vs per-card appellant interaction**: when both are set, per-card wins for descendants of the decision the per-card was set on; page-level still drives descendants of decisions without a per-card pick. Could confuse a user. Mitigation: the page-level appellant selector hides for first-instance proceedings (per §5.5). For appeal proceedings, the selector stays — but those proceedings have a single root decision so the conflict surface is small.
+- **Cross-proceeding consistency** (where #93's rename lives) — coordinate with the inventor on #93 if both ship in parallel.
+
+---
+
+## 9. Out of scope (recap)
+
+- SmartTimeline (project Verlauf tab) per-card choices.
+- Versioning / time-machine of choices.
+- Cross-project propagation.
+- Coder implementation (separate task per slice).
+- A "saved scenarios" feature.
+- Removal of the page-level `?appellant=` URL param for appeal proceedings.
+
+---
+
+## 10. Open questions for m
+
+The following 4 questions need m's pick. Inventor recommendations marked **(R)**. After m answers via AskUserQuestion, the picks land in §11 below as the historical record.
+
+### Q1 — State location
+
+Where do per-card choices live?
+
+- **(R) A. `paliad.project_event_choices` persisted (with URL override for what-if).** Per-case choices are real, not exploratory. Persist by default; what-if exploration handled later as a URL-override layer.
+- B. URL query state only. Ephemeral, shareable, no persistence.
+- C. Both from day one. Persisted default + URL-overridable for what-if scenarios.
+
+### Q2 — Affordance
+
+How do the choices surface on a card?
+
+- **(R) A. Caret (▾) + popover on click.** Off-by-default visual, on-tap reveal. Selected choice surfaces as a chip on the card title.
+- B. Inline checkbox/radio on every relevant card. Higher discoverability, more visual noise.
+- C. Card-hover reveals the choices. Discoverability + touch issues.
+
+### Q3 — Page-level appellant interaction
+
+When a per-card appellant is set on a decision, what happens to the page-level `?appellant=` selector?
+
+- **(R) A. Per-card overrides page-level for descendants of THAT decision.** Decisions without a per-card pick still use page-level. Most expressive.
+- B. Per-card inherits page-level unless explicitly set. Less surprising default but loses the per-decision expressiveness.
+
+### Q4 — Slice order
+
+Which slice ships first?
+
+- **(R) A. Slice A first (appellant per decision + skip optional).** Bounded, validates the popover + persistence layer without touching the flag-evaluation engine. Slice B (include-CCR) follows.
+- B. Slice B first. Higher-impact user feature but requires the engine change.
+- C. Bundle A + B in one coder shift. Slower to ship, lower per-coder load, but one less round trip.
+
+---
+
+## 11. m's decisions (2026-05-25)
+
+- **Q1 (State location):** Persisted table — `paliad.project_event_choices` per §3.1. Matches inventor (R).
+- **Q2 (Affordance):** Caret + popover with chip indicator on chosen cards per §5.1, §5.3. Matches inventor (R).
+- **Q3 (Appellant layer):** Per-card overrides page-level for descendants of that decision. Page-level still drives decisions without a per-card pick. Matches inventor (R). Implementation: `CalculatedDeadline.AppellantContext` (§4.3) carries the per-decision pick down the parent chain so the bucketer reads one field.
+- **Q4 (Slice order):** **Bundle Slice A + Slice B in one coder shift** (m picked over inventor (R) of "A first"). Reasoning: keeps the popover, persistence layer, AND the engine extension for `IncludeCCRFor` in one cohesive PR — coder + reviewer hold the full mental model once; one user-visible release; no half-shipped state where the caret exists on Klageerwiderung cards but the include-CCR pick doesn't yet wire through. Trade-off: larger PR. Mitigation: coder still organises commits per slice internally (separate test files, separate handler additions) so review can read them sequentially. See §7 slice plan — both slices implemented; ship as one.
+
+### Coder-shift implications of Q4 bundling
+
+- Migration 128 carries ALL three choice-kinds (`appellant`, `skip`, `include_ccr`) in the seed of `choices_offered`, plus the Klageerwiderung rows seeded with `{"include_ccr": [true, false]}`.
+- `CalcOptions` gains all three new fields (`PerCardAppellant`, `SkipRules`, `IncludeCCRFor`) in the same Go change.
+- The `IncludeCCRFor` v1 simplification (§4.2 #2 — "any non-empty set means append `with_ccr` to Flags") documents the per-card-scope limitation up front. Multi-CCR proceedings are a future expansion, not a v1 ship blocker.
+- Frontend popover renders all three blocks the rule offers in one render path; coder cannot half-ship by leaving include_ccr's popover branch as a TODO.
+- Tests cover the full matrix on the same branch.
+
+---
+
+## 12. Hard rules for the coder shift
+
+- Migration is 128, not anything else. Verify against `paliad.paliad_schema_migrations` MAX before authoring.
+- Tests added BEFORE projection-engine changes in fristenrechner.go (bucketer, gate, AppellantContext).
+- `go build ./... && go test ./internal/... && cd frontend && bun run build` clean.
+- No regression on `?side=` + `?appellant=` URL state.
+- DE primary, EN secondary for all new i18n keys.
+- Branch per slice: `mai/<coder>/event-card-choices-slice-a` etc.
+
+---
+
+## 13. Reporting
+
+When ready, the coder reports completion with the URL of the test project that exercises the feature, a screenshot of the popover, and the deadline-rules SQL UPDATE counts for the seeded `choices_offered` rows. Standard slice-completion shape.

docs/design-fristen-phase2-2026-05-15.md

@@ -421,7 +421,7 @@ The editor is the **largest single surface** in Phase 3. ~3-4 PRs of work depend
 | `POST /api/admin/rules` | POST | global_admin | Create a new rule from scratch (starts as `lifecycle_state='draft'`). |
 | `GET /admin/rules/{id}/audit` | GET | global_admin | Audit log for this rule. |
 | `POST /admin/rules/{id}/preview` | POST | global_admin | Preview-on-trigger-date — runs calculator with this draft replacing its published peer; returns the resulting timeline (no persistence). |
-| `POST /admin/rules/export-migration` | POST | global_admin | Export pending (draft + audit-since-last-export) rules as a `*.up.sql` blob the human can paste into `internal/db/migrations/`. Sets `migration_exported=true` on the audit rows. |
+| _(removed t-paliad-297)_ migration-export endpoint | — | — | Was a SQL-export tool generating `*.up.sql` from audit rows. Workflow shifted to hand-written numbered migrations; tool removed in m/paliad#129. |
 
 ### 4.2 Draft → published lifecycle
 

docs/design-paliad-data-export-2026-05-19.md

@@ -43,7 +43,7 @@ A full org export today is **< 600 rows of user content** plus reference data
 
 **Audit trail.** Lives in `paliad.project_events` (93 rows). One row per lifecycle event with `event_type`, `metadata jsonb`, `event_date`, `created_by`. The auditing union (`AuditService.ListEntries`) joins 5 sources (project_events, partner_unit_events, deadline_rule_audit, policy_audit_log, reminder_log). For the export we treat `project_events` as primary; the four auxiliary logs are scope-specific.
 
-**Existing export precedent.** `/admin/rules/export` + `/admin/api/rules/export-migrations` (handlers/admin_rules.go) — admin-gated, streams a generated SQL artifact. Same shape as what we want for the Excel exports. Re-use the gating helper.
+**Existing export precedent.** _(Originally pointed at the admin rule-migration export. That tool was deleted in m/paliad#129 / t-paliad-297. The gating pattern — `adminGate(users, …)` on a download endpoint that streams a generated artifact — still lives on other admin handlers, e.g. `handleAdminDownloadBackup` for `/api/admin/backups/{id}/file`.)_ Re-use the gating helper.
 
 **No Go xlsx library on `go.mod` today.** This design picks **`github.com/xuri/excelize/v2`** in §3.
 
@@ -591,7 +591,7 @@ No other slice deltas. v1 still ships slices 1+2+3.
 - `docs/design-data-model-v2.md` — projects + mandanten + ltree path + can_see_project predicate.
 - `docs/design-approval-policy-ui-2026-05-07.md` — 5-source audit union (this design adds the 6th source).
 - `docs/design-profession-vs-project-role-2026-05-07.md` — profession ladder for the §4 project gate.
-- `internal/handlers/admin_rules.go:303` — `handleAdminExportRuleMigrations` (precedent for admin-gated export-as-download).
+- `internal/handlers/backups.go` — `handleAdminDownloadBackup` (precedent for admin-gated artifact download; the older rule-migration export precedent was removed in t-paliad-297).
 - `internal/services/project_service.go:15` — visibility predicate.
 - `internal/services/derivation_service.go` — `EffectiveProjectRole` for the project gate.
 - `github.com/xuri/excelize/v2` — chosen xlsx library.

docs/design-procedural-events-b0-findings-2026-05-26.md

@@ -0,0 +1,277 @@
+# Slice B.0 — Live DB re-validation findings (t-paliad-273)
+
+**Author:** curie (researcher)
+**Date:** 2026-05-26
+**Branch:** `mai/curie/researcher-slice-b-zero`
+**Predecessor:** `docs/design-procedural-events-model-2026-05-25.md` (cronus, t-paliad-262)
+**Scope:** READ-ONLY re-validation of the design doc's §1 premises against the live youpc Supabase `paliad` schema. No migration SQL written, no writes to `deadline_rules` or any table. B.1 (additive migration) remains blocked pending m's greenlight.
+
+This document does **not** redesign the schema. It does **not** propose new structural changes. It records what the live DB looks like ~24 hours after the design was authored, flags every claim that drifted, and gives the eventual B.1 coder a current-as-of-2026-05-26 baseline to plan against.
+
+---
+
+## §0 TL;DR
+
+The design doc's §1 premises were sound on 2026-05-25. **All numeric premises drifted in the 24 hours since.** The qualitative model (`deadline_rules` conflates three concepts; live `deadlines.rule_id` FK; snapshot precedent established; no `proceeding_event*` tables) still holds.
+
+The Q5 default ("10 archived multi-row submission_codes collapse safely") is now **moot**: those rows were removed from the live DB between 2026-05-25 15:30 and 2026-05-26 13:30. There are now **zero** multi-row submission codes; every active submission_code maps 1:1 to one rule row. B.1 backfill no longer needs the multi-row collapse logic that §5 of the design doc anticipated.
+
+The Q6 default ("concept_id attaches to procedural event, not sequencing rule") is **directionally correct but needs refinement**. The empirical attachment is **above** the procedural-event level — `deadline_concepts` rows cluster legal meaning *across* jurisdictional procedural-event variants. One concept_id can span 15 distinct submission_codes (e.g. "Berufungsfrist" across BGH / BPatG / LG / OLG for both PatG and ZPO paths). The FK in §4.1's draft schema (`procedural_events.concept_id REFERENCES deadline_concepts(id)`, N:1) is **already correctly shaped** for this — no schema change needed. The verbal claim in the design doc should be tightened to "one `deadline_concept` row may be referenced by many procedural events; the FK lives on `procedural_events`."
+
+Migration tracker drift: the design's "next available mig = 124" is stale; live head is 133 (`upc_dmgs_pi_court_followup`, 2026-05-25 15:27 — applied **after** the design was written). **Next available is 134.** Ten migrations landed since the doc was authored — 124..133. None of them touched `deadline_rules` schema, but they did mutate row content (the missing 23 rows and the new event_type/legal_source distribution come from migs 127/128/132/133).
+
+The design's claimed migration tracker `paliad.paliad_schema_migrations` is the legacy golang-migrate v1 native counter (stuck at v106). The **canonical** tracker is `paliad.applied_migrations` (one row per applied migration, with checksum + applied_at). `internal/db/migrate.go:9-21` is the source of truth. Project CLAUDE.md still says `paliad.paliad_schema_migrations`; that's a stale doc, not a B.0-scope fix.
+
+One doc-side bug fixed by this slice: design doc §1 + m/paliad#93 issue body referenced `paliad.deadlines.deadline_rule_id`. Live column is `paliad.deadlines.rule_id`. Both files patched on this branch.
+
+---
+
+## §1 Headline-count drift table
+
+All numbers taken 2026-05-26 ~13:30 UTC against the live `paliad` schema.
+
+| Metric | Design (2026-05-25) | Live (2026-05-26) | Δ | Notes |
+|---|--:|--:|--:|---|
+| `deadline_rules` row count | 254 | **231** | -23 | All rows `is_active = true`. No soft-deletes in flight. |
+| Rows with `submission_code` | 177 | **153** | -24 | |
+| Distinct `submission_code` values | 158 | **153** | -5 | **All 5 lost are the multi-row `_archived_litigation.*` codes** — see §2. |
+| Rows with `legal_source` | 102 | **112** | +10 | |
+| Distinct `legal_source` values | 70 | **87** | +17 | New jurisdictional variants seeded by recent migs (127/132/133). |
+| Rows with `concept_id` (linked to `deadline_concepts`) | 125 | **129** | +4 | 56% of the corpus is concept-linked, vs 49% in the design. |
+| `paliad.deadlines` rows | 1 | **5** | +4 | Still tiny — destructive cutover stays cheap. |
+| `paliad.submission_drafts` rows | 4 | **7** | +3 | |
+| Rules in `lifecycle_state = 'draft'` | 4 | **0** | -4 | All 4 design-era drafts were published or discarded. |
+
+### event_type distribution
+
+| `event_type` | Design | Live | Δ |
+|---|--:|--:|--:|
+| `filing` | 130 | 105 | -25 |
+| NULL | 77 | 89 | +12 |
+| `decision` | 25 | 21 | -4 |
+| `hearing` | 21 | 15 | -6 |
+| `order` | 1 | 1 | 0 |
+| **Total** | **254** | **231** | -23 |
+
+The -23 row delta lands almost entirely in `filing` (-25) and `hearing` (-6), offset by +12 NULL — consistent with the disappearance of the `_archived_litigation.*` filings and a few archived `hearing` rows, plus seeding of new structural / parent-only rows by recent migrations.
+
+### What did NOT drift (qualitative claims, still valid)
+
+- `paliad.deadline_rules` carries 39 columns (design said 38 — drift +1; likely from mig 128 `deadline_rules_unit_check` which adds a CHECK without adding a column — or one of migs 124-133 added a column. Not investigated further; out of B.0 scope).
+- `paliad.deadlines.rule_id` (uuid, nullable) is the FK column to `paliad.deadline_rules.id`. **Confirmed via `information_schema.referential_constraints`** — `rule_id → paliad.deadline_rules(id)`. The doc-side mention of `deadline_rule_id` was always a typo.
+- `paliad.deadlines.rule_code` + `paliad.deadlines.custom_rule_text` both still present (the denormalized-display columns from mig 122).
+- `paliad.submission_drafts` uses `(project_id uuid nullable, submission_code text NOT NULL)` as its key — **no FK to deadline_rules**. Confirms the design's claim that the Schriftsätze surface filters on a text key, not on `deadline_rules.id`.
+- No `paliad.proceeding_event*` tables exist (einstein's 2026-05-08 graph design was never built — still the case).
+
+---
+
+## §2 Archived submission_code audit (Q5 re-confirm)
+
+**Premise re-checked:** "10 archived multi-row submission_codes (`_archived_litigation.*`) collapse safely into single procedural events with multiple sequencing variants."
+
+**Finding:** the premise is **moot in the live DB**.
+
+```sql
+SELECT submission_code, COUNT(*)
+FROM paliad.deadline_rules
+WHERE submission_code LIKE '_archived_litigation.%'
+GROUP BY submission_code;
+-- 0 rows
+```
+
+```sql
+SELECT submission_code, COUNT(*)
+FROM paliad.deadline_rules
+WHERE submission_code IS NOT NULL
+GROUP BY submission_code
+HAVING COUNT(*) > 1;
+-- 0 rows
+```
+
+Every active submission_code in the live corpus is 1:1 with its `deadline_rules` row. The 10 multi-row codes the design anticipated no longer exist.
+
+**Consequence for B.1 backfill:**
+
+- The §5.1 / §5.2 backfill SQL the design sketched (collapsing N rows-with-same-submission_code into 1 procedural_event + N sequencing_rules) is **simpler than expected**: a straight 1:1 backfill, no GROUP-BY-and-collapse step needed.
+- B.1's `INSERT INTO paliad.procedural_events ... SELECT DISTINCT submission_code ...` becomes equivalent to `INSERT ... SELECT submission_code, ... FROM deadline_rules WHERE submission_code IS NOT NULL`. No deduplication needed.
+- The 78 rows where `submission_code IS NULL` (231 - 153) still need a B.1 decision: do they become `procedural_events` rows (with synthetic codes), do they become free-standing `sequencing_rules` with `procedural_event_id` NULL, or do they get parked? This was implicit in the design (the 77 NULLs were framed as "structural / parent-only rows in the proceeding tree"); B.1 should make the decision explicit and document it in the migration's `.up.sql` comments.
+
+---
+
+## §3 concept_id attachment shape (Q6 re-confirm)
+
+**Premise re-checked:** "concept_id attaches to procedural event, not sequencing rule."
+
+**Finding:** **partly true.** The FK direction the design proposes (`procedural_events.concept_id → deadline_concepts.id`, N:1) is correct. The verbal phrasing in Q6's default needs refinement — the empirical attachment is **above** the procedural-event level, not "at" it.
+
+### Empirical pattern
+
+129 of 231 rows carry a `concept_id`. Those 129 rows reference **53 distinct `deadline_concepts`** rows. Averages: 2.43 rows-per-concept, 2.42 submission-codes-per-concept (the two are nearly identical because today's corpus has no multi-row submission codes — see §2). Span distribution:
+
+- 33 of 53 concepts (62%) attach to exactly 1 submission_code → procedural-event-scoped.
+- 20 of 53 concepts (38%) attach to >1 submission_code → cross-procedural-event scoped.
+- Maximum: 1 concept attaches to **15 distinct submission_codes**.
+
+### Example: one concept, four procedural events
+
+The concept `b85b2e5a-4064-40b2-b862-24b7abaa5b94` ("Berufungsfrist / Berufungsschrift") is referenced by 4 `deadline_rules` rows that today carry these 4 distinct submission_codes:
+
+| rule_code | submission_code | court | name |
+|---|---|---|---|
+| § 110 PatG | `de.null.bgh.berufung` | BGH | Berufungsschrift |
+| § 110 PatG | `de.null.bpatg.berufung` | BPatG | Berufungsfrist |
+| § 517 ZPO | `de.inf.lg.berufung` | LG | Berufungsfrist |
+| § 517 ZPO | `de.inf.olg.berufung` | OLG | Berufungsfrist |
+
+Under Slice B's target schema (§4.1), each of these four rows becomes a separate `procedural_events` row (different `code`s, different jurisdiction-specific names, different `legal_source_id`s), but **all four reference the same `deadline_concepts.id`**.
+
+### Implication for B.1
+
+- `procedural_events.concept_id` should be **nullable** (62% of rows today have no concept link — the §4.1 sketch already allows this).
+- The constraint must be **N:1, not 1:1** (one `deadline_concept` may be referenced by many `procedural_events`). The §4.1 sketch (`concept_id uuid REFERENCES paliad.deadline_concepts(id)`) is already correctly N:1; a hypothetical "UNIQUE INDEX on `procedural_events.concept_id`" would break the existing data. **Do not add UNIQUE.**
+- The design doc's Q6 phrasing can be tightened to: "concept_id attaches to procedural event (N procedural events → 1 concept). Sequencing rules do not carry concept_id." — but this is a wording nit, not a structural change. It does **not** block B.1.
+
+---
+
+## §4 Snapshot precedent audit
+
+**Premise re-checked:** the `paliad.deadline_rules_pre_<N>` snapshot pattern is established and ready for B.4's destructive drop.
+
+**Finding:** confirmed and consistent.
+
+Snapshot tables in `paliad`:
+
+| Snapshot table | Origin migration |
+|---|---|
+| `deadlines_pre_089` | mig 089 |
+| `deadline_rules_pre_091` | mig 091 (destructive drop of legacy columns) |
+| `event_deadlines_pre_092` | mig 092 |
+| `event_deadline_rule_codes_pre_092` | mig 092 |
+| `deadline_rules_pre_093` | mig 093 |
+| `proceeding_types_pre_093` | mig 093 |
+| `projects_pre_094` | mig 094 |
+| `deadline_rules_pre_095` | mig 095 |
+| `proceeding_types_pre_096` | mig 096 |
+| `deadline_rules_pre_098` | mig 098 |
+
+Pattern: `<original_table>_pre_<migration_number>`. Always created in the `.up.sql` of the destructive migration as `CREATE TABLE paliad.<t>_pre_<N> AS TABLE paliad.<t>;` (followed by the destructive DROP / ALTER).
+
+**B.4's template:** before `DROP TABLE paliad.deadline_rules;` (and `ALTER TABLE paliad.deadlines DROP COLUMN rule_id;`), `mig <N>.up.sql` must include:
+
+```sql
+CREATE TABLE paliad.deadline_rules_pre_<N> AS TABLE paliad.deadline_rules;
+-- (optional) CREATE TABLE paliad.deadlines_pre_<N> AS TABLE paliad.deadlines;
+```
+
+This is non-negotiable per m's snapshot policy and the precedent of migs 089-098. B.4 should not enter the deploy queue without it.
+
+---
+
+## §5 deadlines.rule_id doc bug — verified + patched
+
+**Premise re-checked:** the live column on `paliad.deadlines` referencing `deadline_rules` is named `rule_id`, not `deadline_rule_id`.
+
+**Verification:**
+
+```sql
+SELECT column_name FROM information_schema.columns
+WHERE table_schema='paliad' AND table_name='deadlines' AND column_name LIKE '%rule%';
+-- rule_id (uuid, nullable)
+-- rule_code (text, nullable)
+-- custom_rule_text (text, nullable)
+```
+
+```sql
+SELECT kcu.column_name, ccu.table_name, ccu.column_name
+FROM information_schema.table_constraints tc
+JOIN information_schema.key_column_usage kcu ON ...
+JOIN information_schema.constraint_column_usage ccu ON ...
+WHERE tc.constraint_type='FOREIGN KEY' AND tc.table_schema='paliad' AND tc.table_name='deadlines';
+-- rule_id → paliad.deadline_rules.id
+```
+
+**Fix applied on this branch:**
+
+- `docs/design-procedural-events-model-2026-05-25.md` — §1 row 51 already says "the column is `rule_id` (issue body called it `deadlines.deadline_rule_id` — that's a doc-side typo)". §1 row 63 (the "Doc-side bug flagged" line) already names the fix target. **No change needed to the design doc — the inventor already flagged and described the bug; B.0 just re-confirms it.**
+- `m/paliad#93` issue body — line 56 says `paliad.deadlines.deadline_rule_id` in the Q3 migration shape. Patched via Gitea API on this slice. See §6 of this report.
+
+---
+
+## §6 Migration tracker drift (out-of-scope context)
+
+The design doc said "next available mig number is 124 (mig 123 = Backup Mode Slice A, just shipped)". Live state on 2026-05-26 13:30:
+
+- Latest applied migration: **133** (`upc_dmgs_pi_court_followup`, 2026-05-25 15:27).
+- Next available: **134**.
+- Migrations 124-133 (all applied after the design was authored):
+
+```
+124  de_inf_lg_replik_duplik_sequencing      (2026-05-25 13:49)
+125  cross_cutting_filter_legal_source       (2026-05-25 14:13)
+126  users_inbox_seen_at                     (2026-05-25 13:51)
+127  wave0_tier0_deadline_fixes              (2026-05-25 14:13)
+128  deadline_rules_unit_check               (2026-05-25 14:13)
+129  project_event_choices                   (2026-05-25 15:02)
+130  submission_drafts_language              (2026-05-25 15:05)
+131  submission_drafts_party_selection       (2026-05-25 15:02)
+132  wave1_tier1_rule_additions              (2026-05-25 15:40)
+133  upc_dmgs_pi_court_followup              (2026-05-25 15:27)
+```
+
+These touched `deadline_rules` content (wave0/wave1 rule additions, sequencing fixes, unit checks) and adjacent tables, but did not change the conflated-three-concepts shape that motivates Slice B. The structural premise of the design holds; the row-level numbers shifted.
+
+**Side observation (not a B.0 fix scope):** the project's `CLAUDE.md` says "Migration tracker is `paliad.paliad_schema_migrations` (avoids collision with other apps on the shared `public.schema_migrations`)." That sentence is stale. The **canonical tracker is `paliad.applied_migrations`** (per `internal/db/migrate.go:9-21,53,105`). `paliad.paliad_schema_migrations` is the legacy golang-migrate v1 counter, frozen at v106; the migrate runner uses it only to bootstrap `applied_migrations` on first deploy of the new runner (`internal/db/migrate.go:219-240`). Recommend a separate doc-fix slice (out of B.0 scope) to update `.claude/CLAUDE.md`.
+
+---
+
+## §7 Updated B.1 brief (no-op / minor adjustments only)
+
+What the live data means for the design's §5 migration plan:
+
+1. **Backfill is simpler.** No multi-row collapse logic needed (§2). One-to-one `INSERT INTO paliad.procedural_events SELECT submission_code, name, name_en, description, event_type AS event_kind, primary_party, ... FROM paliad.deadline_rules WHERE submission_code IS NOT NULL` against 153 rows.
+2. **The 78 NULL-submission_code rows need an explicit decision in B.1.** Either:
+   - (a) Skip them — they remain `deadline_rules`-only and become orphan-once-deadline_rules-is-dropped. Not acceptable; B.4 would lose them.
+   - (b) Mint synthetic codes (`null.<uuid8>` or similar) for the structural rows and create `procedural_events` for them.
+   - (c) Treat them as "sequencing-rule-only" (a `sequencing_rules` row with NULL `procedural_event_id`) — would require `sequencing_rules.procedural_event_id` to be nullable, which contradicts §4.1's NOT NULL FK.
+   - Default recommendation: **(b)** — mint codes, preserve every row. B.1 must document the mint rule in the `.up.sql`. Surface this to head before scheduling B.1.
+3. **concept_id stays N:1 on procedural_events.** No UNIQUE constraint. §4.1's sketch already does this; just don't accidentally tighten it.
+4. **Use migration number 134** (or whatever's the live `MAX(version)+1` at B.1-write-time; re-check at the moment of writing the file).
+5. **Snapshot before drop in B.4:** `CREATE TABLE paliad.deadline_rules_pre_<N> AS TABLE paliad.deadline_rules;` per §4 precedent. **This is the hard-stop pre-condition for B.4 entering the deploy queue.**
+6. **Submission_drafts.submission_code → procedural_events.code text join** continues to work unchanged through B.1-B.3 because both names match. No B.5 dual-write needed for `submission_drafts`. (The design's §6.3 already noted this.)
+
+None of these change the **shape** of the design — they tighten the backfill SQL and surface one explicit decision (point 2) for head.
+
+---
+
+## §8 Outputs of this slice (B.0)
+
+| Artifact | Status |
+|---|---|
+| `docs/design-procedural-events-b0-findings-2026-05-26.md` (this file) | created on `mai/curie/researcher-slice-b-zero` |
+| `docs/design-procedural-events-model-2026-05-25.md` | cherry-picked from `mai/cronus/inventor-procedural` onto this branch (design doc was never merged to main; B.0 brings it onto a branch off main so the doc bug fix has somewhere to land) |
+| m/paliad#93 issue body — `deadline_rule_id` → `rule_id` correction | patched via Gitea API |
+| Gitea comment on m/paliad#93 summarizing this report | posted (see §6 trailing summary on the issue) |
+
+**Nothing migrated, nothing written to `paliad.deadline_rules` or any other live data table.** Only `mai.reports` (progress) and the GitHub issue body / repo files were touched.
+
+---
+
+## §9 Hard-stop status
+
+**B.0 COMPLETE. AWAITING B.1 GREENLIGHT.**
+
+Per the original instruction:
+
+- B.1 (additive migration creating `paliad.procedural_events`, `paliad.sequencing_rules`, `paliad.legal_sources` + backfill) requires explicit m approval before any new tables get created.
+- B.4 (destructive drop of `paliad.deadline_rules` + `paliad.deadlines.rule_id`) requires m's downtime-window approval AND a `paliad.deadline_rules_pre_<N>` snapshot table in the same migration.
+- This researcher (curie) stays parked until head re-hires.
+
+---
+
+## §10 Decisions worth surfacing to m before B.1 starts
+
+1. **NULL-submission_code rows (78 of them) — what to do during backfill?** Recommendation (b): mint synthetic codes. m should confirm or pick (a)/(c).
+2. **B.5 deprecation header window length** — the design (§8.2) says "one slice". For 7 active submission_drafts that's safe; the question is whether external integrations (Word templates with `{{rule.X}}`) need a longer window. The variable-bag alias contract (`submission_vars.go`) covers Word templates without a wire-format change, so "one slice" is defensible. m should confirm.
+3. **Migration number reservation** — by the time B.1 ships, the live head may be 135+. The B.1 coder must re-check `MAX(version)` at write-time. (Not a decision; just a process note.)
+
+These are the only open questions the B.0 audit surfaced. Everything else in the design holds.

docs/design-procedural-events-model-2026-05-25.md

@@ -0,0 +1,571 @@
+# Design — Procedural-Events Data Model (t-paliad-262)
+
+**Author:** cronus (inventor)
+**Date:** 2026-05-25
+**Issue:** m/paliad#93 (mai task t-paliad-262)
+**Branch:** `mai/cronus/inventor-procedural`
+**Status:** DESIGN — read-only, no schema or code changes in this branch.
+**B.0 re-validation:** see `docs/design-procedural-events-b0-findings-2026-05-26.md` (curie, 2026-05-26) for the live-DB premise re-check. Numeric §1 claims drifted; Q5 multi-row collapse premise is moot (no `_archived_litigation.*` rows remain); Q6 N:1 attachment confirmed; mig number target updated 124 → 134.
+**Prior art read:**
+- `docs/design-deadline-data-model-2026-05-08.md` (einstein, t-paliad-158) — proposed `proceeding_event_types` + `proceeding_event_edges`; the **graph-shape recommendation has not been built** (no `proceeding_event*` tables exist in the live DB as of 2026-05-25, verified via `information_schema.tables`).
+- `docs/design-fristen-phase2-2026-05-15.md` (Phase 2/3 unified-rule columns — migs 078/079/091, **shipped**).
+- `docs/design-submission-generator-2026-05-19.md` and `docs/design-submission-page-2026-05-22.md` (Slice 1 → Slice A of the Schriftsätze stack — shipped on top of today's `deadline_rules`).
+
+This doc names a single conflation in the schema and proposes a two-slice fix (cosmetic immediate, structural follow-up). It is intentionally narrower than einstein's 2026-05-08 graph proposal — it does **not** re-litigate the proceeding-as-DAG question.
+
+---
+
+## §0 TL;DR
+
+`paliad.deadline_rules` today is **one row that wears three hats**:
+
+1. **The procedural-event template** — `submission_code`, `name`, `name_en`, `description`, `event_type`, `primary_party`. This is "what kind of step is this in the proceeding": Rechtsbeschwerdebegründung, mündliche Verhandlung, Entscheidung, etc.
+2. **The legal-norm citation** — `legal_source`, `rule_code`, `alt_rule_code`, `rule_codes[]`. This is "the source-of-law anchor": § 102 PatG, UPC RoP R.220(1).
+3. **The sequencing rule** — `parent_id`, `trigger_event_id`, `duration_value`, `duration_unit`, `timing`, `alt_duration_*`, `combine_op`, `condition_expr`, `is_spawn`, `spawn_*`, `sequence_order`, `is_court_set`, `priority`, `anchor_alt`, `proceeding_type_id`. This is "how and when does it fire relative to other events".
+
+The conflation surfaces most painfully in the submission-draft editor's variable sidebar (m's report 2026-05-25 15:02), where the lawyer sees field labels like `{{rule.submission_code}}` for what is plainly a *procedural-event code*, `{{rule.event_type}}` for what is plainly the *procedural-event kind*, and `{{rule.legal_source_pretty}}` for what is plainly the *legal norm* — all under a `rule.*` namespace that reads as if the lawyer were filling in arithmetic.
+
+**Recommendation = Q1 option (C):**
+
+- **Slice A (immediate, this design's coder shift):** cosmetic rename — placeholders, i18n labels, Go struct-comment naming, admin-UI page titles all shift to `procedural_event.*` as the canonical name. **Database schema, table name, column names, FK directions, JSON envelope keys on the wire all stay exactly as they are.** Old `{{rule.*}}` placeholders remain emitted in the variable bag as legacy aliases so existing Word templates and saved drafts keep working.
+- **Slice B (planned follow-up, separate mai task, separate slice plan):** structural rework — extract `paliad.procedural_events`, `paliad.sequencing_rules`, `paliad.legal_sources`, with a phased dual-write migration. **Not shipped here.** This doc defines the target shape (§4) and the migration shape (§5) so the eventual coder has a brief, not so the eventual coder is hired today.
+
+**Umbrella term lock = Q2 option (R):** **"procedural event"** (DE: **"Verfahrensschritt"**) as the umbrella covering filings, hearings, decisions, orders. Justification in §2.
+
+Both Slice A and the eventual Slice B preserve the Schriftsätze surface (t-paliad-238/242/243): the submissions list query changes its predicate from `dr.event_type = 'filing'` to `pe.event_kind IN ('filing', 'reply')` (Slice B only) — same rows, cleaner predicate.
+
+---
+
+## §1 Premises verified live (2026-05-25)
+
+Every load-bearing claim was checked against the running paliad codebase + youpc Supabase. Numbers and schema facts are point-in-time as of 2026-05-25 15:30.
+
+| Claim | Verification |
+|---|---|
+| `paliad.deadline_rules` carries the 38 columns listed in §0's three-hats decomposition. | `information_schema.columns WHERE table_schema='paliad' AND table_name='deadline_rules'` — 38 rows; columns confirmed verbatim. |
+| Live row count = 254. | `SELECT COUNT(*) FROM paliad.deadline_rules` → 254. |
+| 177 rows carry a `submission_code` (procedural-event identity); 158 distinct values. | `COUNT(*) FILTER (WHERE submission_code IS NOT NULL)` → 177; `COUNT(DISTINCT submission_code)` → 158. |
+| 102 rows carry a `legal_source`; 70 distinct citations. | Same query, `legal_source` column. |
+| 125 rows are linked to a `deadline_concepts` row via `concept_id`. | `COUNT(*) FILTER (WHERE concept_id IS NOT NULL)` → 125 (49 % of the corpus). |
+| `event_type` distribution: 130 `filing` · 77 NULL · 25 `decision` · 21 `hearing` · 1 `order`. | `SELECT event_type, count(*) GROUP BY event_type` — confirmed; the 77 NULL rows are structural / parent-only rows in the proceeding tree. |
+| 10 `submission_code` values appear on more than one row (jurisdictional / bilateral variants). | All 10 today are `_archived_litigation.*` codes (claimant/defendant splits + multi-stage hearing rows). Live non-archived codes are 1:1 with rows in the current corpus. |
+| `paliad.deadlines` joins to `deadline_rules` via column `rule_id` (uuid, FK). The text `rule_code` and free-text `custom_rule_text` (mig 122, t-paliad-258) are denormalized for display when the rule row is deleted. | `internal/services/deadline_service.go:69-127`; live column list confirms `rule_id`, `rule_code`, `custom_rule_text` — there is **no** `deadline_rule_id` column on deadlines (issue body called it `deadlines.deadline_rule_id` — that's a doc-side typo; the column is `rule_id`). |
+| `paliad.submission_drafts` keys to a procedural event via `submission_code` text — **no FK** to `deadline_rules`. | `information_schema.columns` for `submission_drafts`: `submission_code text` plus `(project_id, submission_code)` as the joint identifier. Confirms the Schriftsätze surface filters on the *text key*, not on `deadline_rules.id`. |
+| The Schriftsätze list (t-paliad-238) filters `deadline_rules` by `event_type='filing'` and `submission_code IS NOT NULL`. | `internal/handlers/submissions.go:193-211` — verbatim. |
+| The variable bag emits exactly 8 `rule.*` placeholders. | `internal/services/submission_vars.go:349-364` — `rule.submission_code`, `rule.name`, `rule.name_de`, `rule.name_en`, `rule.legal_source`, `rule.legal_source_pretty`, `rule.primary_party`, `rule.event_type`. Frontend i18n labels at `frontend/src/client/submission-draft.ts:158-185`. |
+| Admin rule-edit form binds the same `rule.X` fields. | `frontend/src/admin-rules-edit.tsx:74-110` + `frontend/src/client/admin-rules-edit.ts:253-278` — same eight columns surfaced as form inputs. |
+| The Fristenrechner client surface refers to `calc.rule.nameDE` / `calc.rule.nameEN`. | `frontend/src/client/fristenrechner.ts:1592,1655`. |
+| einstein's 2026-05-08 `proceeding_event_types` + `proceeding_event_edges` are **not** in the DB. | `SELECT table_name FROM information_schema.tables WHERE table_schema='paliad' AND table_name LIKE '%proceeding_event%'` → 0 rows. The graph-shape proposal was never built. |
+| `paliad.deadline_concepts` (57 rows in the original einstein audit; live count not directly queried this shift) still exists and is referenced via `deadline_rules.concept_id`. | `information_schema.tables` confirms `deadline_concepts`, `deadline_concept_event_types`, `deadline_event_types`, `event_types`, `trigger_events`, `event_categories` all still present — the deadline-knowledge graph from the einstein design lives on alongside the unified rule columns. |
+| Phase 2/3 columns (`priority`, `condition_expr`, `is_court_set`, `lifecycle_state`, `draft_of`, `published_at`, `rule_codes[]`) are live and load-bearing. | `internal/models/models.go:622-684` + mig 091. Slice B's structural rework must preserve every one of these on the new `sequencing_rules` table — they are not legacy. |
+| Live `paliad.deadlines` references to rules are sparse (1 row in prod). | `SELECT COUNT(*) FROM paliad.deadlines` → 1. The 4 `submission_drafts` rows reference a procedural event by `submission_code` text only. Tiny live FK surface → migrations can be aggressive without losing user data. |
+| Migration tracker is `paliad.paliad_schema_migrations`; next available number is 124 (mig 123 = Backup Mode Slice A, just shipped). | `internal/db/migrations/` directory listing; latest applied = 123. |
+
+**Doc-side bug flagged for this issue's body:** the deliverable spec writes `paliad.deadlines.deadline_rule_id` in §3 (Q3 migration shape). The live column is `paliad.deadlines.rule_id`. Slice B's rename target is therefore `paliad.deadlines.procedural_event_id`, renamed directly from `paliad.deadlines.rule_id` — there is no intermediate `deadline_rule_id` step (no such column exists). Updating the issue body is m's call — flagged here so it doesn't propagate into a coder brief. *(B.0 update 2026-05-26: issue body patched. See `docs/design-procedural-events-b0-findings-2026-05-26.md` §5.)*
+
+---
+
+## §2 m's vocabulary call (Q2 — lock the umbrella term)
+
+m proposed "procedural event" in the report. Options weighed:
+
+| Option | Reads as | Collisions | Verdict |
+|---|---|---|---|
+| **"procedural event"** (DE: "Verfahrensschritt") | Umbrella that naturally covers filings, hearings, decisions, orders. Matches lawyer mental model: "the next thing that happens in the proceeding". | None — no `paliad.procedural_event*` table or column today (verified). | **(R) — adopt as canonical.** |
+| "submission" | Today the Schriftsätze surface uses this for *filings only* (`event_type='filing'`). Expanding the meaning would silently change Slice A's semantics for an existing UI. | Surface-level collision with the Schriftsätze nomenclature already in production. | Reject — would lose precision for an existing concept. |
+| "event" / "event_type" | Existing `deadline_rules.event_type` column. | **Hard collision** with `paliad.events` (audit feed, distinct table, distinct meaning). Renaming around it would be worse than the conflation we're trying to fix. | Reject. |
+| "Verfahrensschritt" only (no English) | Cleanest German but no English fallback. | Bilingual UI (DE primary, EN secondary per project CLAUDE.md) requires both. | Reject in isolation — but **adopt as the canonical German rendering** of "procedural event". |
+| "Verfahrensereignis" | Closer literal translation of "procedural event". | None. | Reject in favor of "Verfahrensschritt" — m's broader vocabulary uses "Schritt" (e.g. "Antragsschritt") more naturally than "Ereignis", which already maps to `paliad.events` in the audit-feed sense. |
+
+**Lock:**
+
+| Surface | Canonical |
+|---|---|
+| English | **procedural event** (lowercase except sentence-initial) |
+| German | **Verfahrensschritt** (m. — der Verfahrensschritt) |
+| Plural EN | procedural events |
+| Plural DE | Verfahrensschritte |
+| Code identifier (Go struct names, TS types) | `ProceduralEvent`, `ProceduralEventKind`, `ProceduralEventTemplate` |
+| Snake-case (DB columns, JSON keys, i18n keys, placeholders) | `procedural_event`, `procedural_event_kind`, `procedural_events` (table) |
+| Slice A: variable-bag placeholder namespace | `procedural_event.*` (with `rule.*` kept as legacy alias) |
+| Slice B: table name (if shipped) | `paliad.procedural_events` |
+
+`event_type` (the column) becomes `event_kind` in Slice B — using "kind" rather than "type" to free up the word "type" for the proceeding-level taxonomy (`paliad.proceeding_types`, untouched) and to mirror the "event_type vs event_kind" disambiguation einstein hit in the 2026-05-08 doc. In Slice A the column stays `event_type` (no DB change).
+
+**Q2 is locked by inventor recommendation.** It costs nothing structurally and clears noise across every downstream conversation. If m disagrees in the head round-trip, the only thing that flips is the term — Slice A's scope shape stays.
+
+---
+
+## §3 Scope decision (Q1 — A vs B vs C)
+
+**Recommendation = (C) — cosmetic rename now, structural rework as a planned follow-up.**
+
+### Why not (A) — cosmetic only and stop
+
+(A) leaves the model wrong forever. The conflation isn't just a labelling annoyance — it makes future questions harder to answer cleanly:
+
+- "How many distinct procedural events does paliad model?" Today: ambiguous (rows vs distinct `submission_code`s vs distinct `(submission_code, proceeding_type_id)` tuples).
+- "Where can we attach a per-procedural-event Word template that's independent of which proceeding it appears in?" Today: nowhere — the FK chain forces a per-row template registry, see `internal/handlers/files.go` template fallback.
+- "Show me every sequencing rule that triggers a given procedural event across all proceedings." Today: requires joining `deadline_rules` to itself on `submission_code` + `parent_id`, brittle.
+
+If m signals (A) anyway — fine; the cosmetic-only slice is a strict subset of (C)'s Slice A and ships the same value (label clarity in the editor). But the recommendation is to write down the structural target now while the analysis is fresh.
+
+### Why not (B) — restructure immediately
+
+(B) means: one slice plan, one cutover. With:
+- 254 live rule rows,
+- 1 live `paliad.deadlines` row,
+- 4 live `submission_drafts` rows,
+- 12 Go services + 6 handlers touching `deadline_rules` + 8 placeholder strings on the wire + the admin rule-editor UI bound to the column shape,
+
+…doing this in one cutover means a big-bang migration during a downtime window. m has granted exactly one such window in recent memory (2026-05-15 for mig 091's destructive drops), and that one was constrained to a 4-column drop. A four-table restructure has a meaningfully larger blast radius; it warrants its own task with its own slice plan and its own risk review.
+
+### Why (C) — cosmetic-rename Slice A this design, structural Slice B as a separate task
+
+Three properties of (C) make it the safe call:
+
+1. **Slice A is reversible at any time** — every change is in i18n strings, Go struct comments, admin-UI page titles, and the variable-bag aliases. No DB migration. No drop. A revert is a `git revert` of the Slice A commit.
+2. **Slice B is fully designed but uncommitted** — §4 and §5 below define the target shape and migration plan, but the design doc itself ships in Slice A. m can read it, redirect it, or park it without pressure to ship it now.
+3. **The Schriftsätze surface doesn't care which slice we ship** — Slice A leaves it on `event_type='filing'`; Slice B flips it to `event_kind IN ('filing', 'reply')` over a dual-write window. Either way, the lawyer-facing behavior is unchanged.
+
+### Slice A's deliverable boundary (what gets renamed, what stays)
+
+**Renamed in Slice A:**
+
+- **i18n keys** for the admin rule-editor field labels: `admin.rules.edit.field.submission_code` → `admin.rules.edit.field.procedural_event_code`, etc. (16 keys total — `name`, `name_en`, `description`, `submission_code`, `rule_code`, `legal_source`, `primary_party`, `event_type` × DE/EN — full list in §7.1.)
+- **Variable-bag placeholder labels** in `submission-draft.ts:158-185`: the *visible label* (`{ de: "Schriftsatz-Code", en: "Submission code" }`) is unchanged for filings (filings are still Schriftsätze on that surface), but the **namespace shown next to the placeholder string** changes: lawyer sees `{{procedural_event.code}}` in the placeholder column with the same Schriftsatz-Code label and same value. The old `{{rule.submission_code}}` stays in the catalog as an "(alt)" entry pointing at the same field.
+- **Variable-bag emission** (`internal/services/submission_vars.go:351-364`): the bag emits **both** key-names for every value, so any Word template / saved draft holding `{{rule.X}}` keeps working without a touch. New templates and the in-app catalog show the canonical `{{procedural_event.X}}` name.
+- **Admin page titles + section headings**: "Regel bearbeiten" → "Verfahrensschritt bearbeiten" (DE), "Edit rule" → "Edit procedural event" (EN). "Regeln verwalten" → "Verfahrensschritte verwalten" / "Procedural events". The URL path `/admin/rules` stays — URL renames have downstream cost (bookmarks, audit log entries) and would need their own redirect slice (out of scope here).
+- **Go struct comments + service docstrings + worker-facing log lines** that refer to "the rule" → "the procedural event" where the referent is the procedural-event aspect (not the sequencing-rule aspect). Function names, type names, table name stay (Slice B handles those).
+- **The "Submission Code / Einreichung-Kennung" label** itself stays (it's the lawyer's anchor — they recognize it). The framing around it changes: it now reads as "the code that identifies this *procedural event*", not "the code attached to this *rule*".
+
+**Untouched in Slice A:**
+
+- Database schema. Table name (`paliad.deadline_rules`). Column names. FK directions. Indexes. RLS policies. Triggers. Audit log column `rule_id`.
+- Go struct names: `DeadlineRule` stays. The renames here are *prose*, not *code*. Renaming `DeadlineRule` to `ProceduralEvent` couples Slice A to Slice B's table rename — keep them decoupled.
+- JSON envelope keys on the wire (`POST /api/admin/rules/:id` still accepts `submission_code` in the body — Slice B's API rename is a breaking change with its own deprecation window).
+- URL paths (`/admin/rules`, `/api/admin/rules/:id`, `/api/projects/:id/submissions` etc.).
+- `paliad.deadlines.rule_id` FK column name.
+- The variable-bag's legacy `{{rule.X}}` keys — kept forever as aliases (cheap, zero rot).
+- The `submission_drafts` table's `submission_code` text key.
+
+This boundary makes Slice A a one-day coder shift: scoped, reversible, label-only.
+
+### What Slice B inherits
+
+Slice B inherits a codebase + a UI where every prose surface already speaks "procedural event". It also inherits a *legacy alias contract* (the dual emission in the variable bag) that gives it freedom to rename the JSON keys on the wire and the Go struct in two separate sub-slices without rushing.
+
+---
+
+## §4 Restructure schema (Q3 — if/when we ship Slice B)
+
+This is the target the eventual Slice B coder would land. **Nothing here ships in this task.**
+
+### §4.1 Three new tables (plus the rename of `deadline_rules`)
+
+```sql
+-- 1. Procedural event templates — one row per (procedural-event identity)
+--    For now the live corpus is 1:1 with non-archived submission_codes
+--    (148 of the 158 distinct codes), so we get ~177 rows minus the 10
+--    multi-row codes' duplicates. Bilateral / jurisdictional variants
+--    are modeled at the sequencing_rules layer.
+CREATE TABLE paliad.procedural_events (
+    id                  uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    code                text NOT NULL UNIQUE,        -- former submission_code
+    name                text NOT NULL,               -- DE
+    name_en             text NOT NULL,
+    description         text,
+    event_kind          text NOT NULL,               -- filing|reply|hearing|decision|order|other
+    primary_party_default text,                      -- claimant|defendant|both|court
+    legal_source_id     uuid REFERENCES paliad.legal_sources(id),
+    concept_id          uuid REFERENCES paliad.deadline_concepts(id),
+    lifecycle_state     text NOT NULL DEFAULT 'published',  -- draft|published|archived
+    draft_of            uuid REFERENCES paliad.procedural_events(id),
+    published_at        timestamptz,
+    is_active           boolean NOT NULL DEFAULT true,
+    created_at          timestamptz NOT NULL DEFAULT now(),
+    updated_at          timestamptz NOT NULL DEFAULT now()
+);
+```
+
+```sql
+-- 2. Legal sources — the source-of-law citations the procedural event
+--    anchors against. ~70 distinct values today (live corpus).
+CREATE TABLE paliad.legal_sources (
+    id              uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    citation        text NOT NULL UNIQUE,           -- "DE.PatG.102", "UPC.RoP.220.1", …
+    jurisdiction    text NOT NULL,                  -- DE|UPC|EPA|DPMA|other
+    pretty_de       text NOT NULL,                  -- "§ 102 PatG"
+    pretty_en       text NOT NULL,                  -- "Section 102 PatG"
+    notes           text,
+    created_at      timestamptz NOT NULL DEFAULT now(),
+    updated_at      timestamptz NOT NULL DEFAULT now()
+);
+```
+
+```sql
+-- 3. Sequencing rules — the timing / trigger / condition mechanics that
+--    today live alongside the procedural-event identity on deadline_rules.
+--    One row per (procedural_event × proceeding × variant). The 10
+--    "_archived_litigation.*" codes that today have 2-5 rows become
+--    2-5 sequencing_rules rows for the same procedural_events row.
+CREATE TABLE paliad.sequencing_rules (
+    id                       uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    procedural_event_id      uuid NOT NULL REFERENCES paliad.procedural_events(id),
+    proceeding_type_id       integer REFERENCES paliad.proceeding_types(id),
+    parent_id                uuid REFERENCES paliad.sequencing_rules(id),     -- structural tree, today's parent_id
+    trigger_event_id         bigint REFERENCES paliad.trigger_events(id),     -- event-rooted variant
+    duration_value           integer NOT NULL DEFAULT 0,
+    duration_unit            text NOT NULL DEFAULT 'months',
+    timing                   text DEFAULT 'after',
+    alt_duration_value       integer,
+    alt_duration_unit        text,
+    alt_rule_code            text,                 -- legacy free-text alt citation, retained
+    anchor_alt               text,
+    combine_op               text,                 -- max|min
+    condition_expr           jsonb,
+    primary_party            text,                 -- per-rule override of the procedural_event default
+    sequence_order           integer NOT NULL DEFAULT 0,
+    is_spawn                 boolean NOT NULL DEFAULT false,
+    spawn_label              text,
+    spawn_proceeding_type_id integer REFERENCES paliad.proceeding_types(id),
+    is_bilateral             boolean NOT NULL DEFAULT false,
+    is_court_set             boolean NOT NULL DEFAULT false,
+    priority                 text NOT NULL DEFAULT 'mandatory',
+    rule_code                text,                 -- legacy short-form citation, retained on the rule
+    rule_codes               text[],               -- multi-citation array (mig pre-091)
+    deadline_notes           text,
+    deadline_notes_en        text,
+    lifecycle_state          text NOT NULL DEFAULT 'published',
+    draft_of                 uuid REFERENCES paliad.sequencing_rules(id),
+    published_at             timestamptz,
+    is_active                boolean NOT NULL DEFAULT true,
+    created_at               timestamptz NOT NULL DEFAULT now(),
+    updated_at               timestamptz NOT NULL DEFAULT now()
+);
+```
+
+```sql
+-- 4. Rename downstream FK + add the link to procedural_events.
+ALTER TABLE paliad.deadlines
+    ADD COLUMN procedural_event_id uuid REFERENCES paliad.procedural_events(id),
+    ADD COLUMN sequencing_rule_id   uuid REFERENCES paliad.sequencing_rules(id);
+-- (rule_id stays as a transitional alias during the dual-write window;
+--  dropped at end of Slice B)
+```
+
+```sql
+-- 5. Submission drafts: add procedural_event_id FK alongside submission_code.
+ALTER TABLE paliad.submission_drafts
+    ADD COLUMN procedural_event_id uuid REFERENCES paliad.procedural_events(id);
+-- (submission_code stays — it's the cosmetic anchor lawyers recognize
+--  in URLs and chat, and it doubles as the procedural_events.code value)
+```
+
+### §4.2 What goes where (column-by-column map)
+
+Every column on today's `paliad.deadline_rules` lands on exactly one of the three new tables:
+
+| Today's `deadline_rules` column | Lands on | Notes |
+|---|---|---|
+| `id`, `created_at`, `updated_at` | `sequencing_rules` | The current row's identity becomes a sequencing-rule row. `procedural_events.id` is **new** — backfilled from `submission_code`. |
+| `submission_code` | `procedural_events.code` | Promoted up. Multi-row codes (10 in corpus, all `_archived_litigation.*`) collapse to one row on the new table; the 2-5 sequencing rows hang off it. |
+| `name`, `name_en`, `description` | `procedural_events` | Procedural-event identity. |
+| `primary_party` | `procedural_events.primary_party_default` AND `sequencing_rules.primary_party` | Both. The procedural event has a default party (claimant for Klage etc.); the sequencing rule can override per-jurisdiction (bilateral variants — e.g. `litigation.reply` claimant vs defendant become two sequencing rows with overridden party). |
+| `event_type` | `procedural_events.event_kind` | Hat 1, with rename to `event_kind` (term lock §2). |
+| `legal_source` | `legal_sources.citation` + FK from `procedural_events.legal_source_id` | The citation moves to its own row; the procedural event points at it. `pretty_de` / `pretty_en` materialize the existing `legalSourcePretty()` function output as columns (with the function retained as the migration source). |
+| `rule_code`, `alt_rule_code`, `rule_codes[]` | `sequencing_rules` | Short-form citation arrays stay on the sequencing rule — they're rule-specific. |
+| `proceeding_type_id`, `parent_id`, `trigger_event_id`, `spawn_proceeding_type_id`, `is_spawn`, `spawn_label`, `is_bilateral`, `is_court_set`, `combine_op` | `sequencing_rules` | Hat 3 (mechanics) — exact copies. |
+| `duration_value`, `duration_unit`, `timing`, `alt_duration_value`, `alt_duration_unit`, `anchor_alt` | `sequencing_rules` | Hat 3 (mechanics). |
+| `condition_expr` (jsonb) | `sequencing_rules` | Hat 3. The grammar from mig 091 stays. |
+| `priority`, `sequence_order` | `sequencing_rules` | Hat 3. |
+| `is_active`, `lifecycle_state`, `draft_of`, `published_at` | **BOTH** `procedural_events` AND `sequencing_rules` | A procedural event can be retired independently of any one of its sequencing variants. Backfill: copy onto both during dual-write; new rows go through the rule-editor service which writes both sides together. |
+| `concept_id` (FK to `deadline_concepts`) | `procedural_events.concept_id` | The concept layer (einstein 2026-05-08) attaches to the procedural event, not the sequencing rule. |
+| `deadline_notes`, `deadline_notes_en` | `sequencing_rules` | They're rule-specific notes ("filing the appeal in DE costs €X if you also did Y") — not procedural-event-wide. |
+
+Three columns disappear:
+
+- The semantically-overloaded part of `event_type` (renamed to `event_kind` and moved).
+- The "what is this thing" vs "how does it fire" name conflict — gone by construction.
+- Any column that exists only because of the conflation (none of today's columns are pure overhead — they all carry data — so the count stays at 38 across the three new tables).
+
+### §4.3 Indexes + RLS
+
+`paliad.can_see_project()` is the canonical RLS predicate (mig 055). None of the three new tables hold project-scoped data — they're firm-wide reference tables. RLS = none, same posture as today's `deadline_rules` (which is firm-wide and unrestricted at the row level; access control is via the `lifecycle_state='published'` filter in the read paths).
+
+Indexes inherited from today:
+
+- `paliad.legal_sources(citation)` — UNIQUE.
+- `paliad.procedural_events(code)` — UNIQUE.
+- `paliad.procedural_events(concept_id)` — for the deadline-concept join.
+- `paliad.sequencing_rules(procedural_event_id, proceeding_type_id, lifecycle_state)` — primary read path for the calculator.
+- `paliad.sequencing_rules(parent_id)` — tree walk.
+- `paliad.sequencing_rules(trigger_event_id)` — event-rooted variant.
+
+---
+
+## §5 Migration plan (Slice B — when it ships, not in this task)
+
+Phased dual-write, so the cutover is **never** a single instant where the wire format flips. m gets to roll back any one phase with a `git revert` + an `ALTER TABLE` if a phase misbehaves in prod.
+
+### §5.1 Phase 1 — Additive (no down-time)
+
+1. Create `procedural_events`, `sequencing_rules`, `legal_sources`.
+2. Backfill `legal_sources` from `DISTINCT legal_source` on `deadline_rules` (70 rows). Populate `pretty_de`/`pretty_en` by calling the existing `legalSourcePretty()` function in a one-shot SQL/Go shim during the migration. Verify `COUNT(DISTINCT legal_source FROM deadline_rules) = COUNT(*) FROM legal_sources`.
+3. Backfill `procedural_events` from `DISTINCT submission_code` on `deadline_rules WHERE submission_code IS NOT NULL`. Take `name`, `name_en`, `event_type → event_kind`, `primary_party`, `concept_id`, `description` from the lowest-`id` rule row for each code (tie-breaker: lowest `sequence_order`). Verify `COUNT(*) FROM procedural_events = COUNT(DISTINCT submission_code FROM deadline_rules WHERE submission_code IS NOT NULL)` (= 158).
+4. Backfill `sequencing_rules` 1:1 from `deadline_rules` (254 rows). FK `procedural_event_id` resolved by code lookup; sequencing-rule row inherits the `deadline_rules.id` (so existing `deadlines.rule_id` FKs continue to resolve via the new column for the dual-write window — see Phase 3).
+5. Add `paliad.deadlines.procedural_event_id` + `sequencing_rule_id` columns, backfill from `deadlines.rule_id` join.
+6. Add `paliad.submission_drafts.procedural_event_id`, backfill from `submission_code` join.
+
+This phase ships behind a feature flag (or just behind unused code) — readers + writers stay on `deadline_rules`. No behavior change.
+
+### §5.2 Phase 2 — Dual-write (no down-time)
+
+7. Update `RuleEditorService` to write to both `deadline_rules` (legacy) and (`procedural_events`, `sequencing_rules`, `legal_sources`) on every Create/Update/Publish/Archive. Audit log writes one row per side.
+8. Update read paths to **read from the new tables**, falling back to `deadline_rules` if the new row is missing (defense-in-depth during backfill catch-up).
+9. Run for ≥ 1 week (m's call on length). Compare row counts and a hash digest of the union daily — if drift, surface.
+
+### §5.3 Phase 3 — Cutover (no down-time, but reversible only via re-application of the dual-write)
+
+10. Flip read paths to **only** the new tables (`SubmissionVarsService.loadPublishedRule`, `DeadlineRuleService.*`, `SubmissionService.list`, `ProjectionService`, `FristenrechnerCalc`, etc.).
+11. Stop writing to `deadline_rules`.
+12. `paliad.deadlines.rule_id` is kept as a no-op alias for one more week; new writes go to `procedural_event_id` + `sequencing_rule_id`.
+13. `submission_drafts.submission_code` is kept as the URL anchor; the FK `procedural_event_id` is the primary join key going forward.
+
+### §5.4 Phase 4 — Drop legacy (downtime window, destructive)
+
+14. `paliad.deadline_rules_pre_<slice-B-mig>` snapshot of the entire table.
+15. DROP TABLE paliad.deadline_rules (after CASCADE-safe FK rewires).
+16. DROP COLUMN paliad.deadlines.rule_id (keep `rule_code` + `custom_rule_text` as the human-readable denormalized columns — they're the safety net for orphaned deadlines per t-paliad-258).
+
+m grants this destructive phase its own window (precedent: mig 091 on 2026-05-15). Until then, the legacy table sits dormant.
+
+### §5.5 Migration tracker
+
+- Slice B uses migration numbers 124 (Phase 1 — create tables + backfill) and onward — a 4-5 migration sequence, one per phase boundary, mirroring the Phase 2/3 slicing that shipped under t-paliad-195.
+- Each migration includes a `paliad.audit_reason = 'mig <n>: <slice-B-phase>'` set_config like mig 091 did, so the audit log captures the schema journey.
+
+---
+
+## §6 Service-layer impact
+
+### §6.1 Slice A — prose-only changes
+
+| File | Change |
+|---|---|
+| `internal/services/submission_vars.go` | `addRuleVars` → also emit `procedural_event.code`, `procedural_event.name`, `procedural_event.name_de`, `procedural_event.name_en`, `procedural_event.legal_source`, `procedural_event.legal_source_pretty`, `procedural_event.primary_party`, `procedural_event.event_kind` (8 new keys, 1:1 with the 8 existing `rule.*` keys, same values). Rename docstrings + the package-level placeholder map comment ("`rule.*`" → "`procedural_event.*` (with legacy alias `rule.*`)"). |
+| `internal/services/deadline_rule_service.go` | Top-of-file comment + struct comment renames only. Method names stay (`DeadlineRuleService`, `GetByID`, etc.). |
+| `internal/services/rule_editor_service.go` | Same. |
+| `internal/services/projection_service.go`, `deadline_service.go`, `fristenrechner.go`, `submission_draft_service.go`, `event_trigger_service.go`, `event_deadline_service.go`, `proceeding_mapping.go`, `export_service.go` | No code changes. Comments mentioning "the rule"/"rules" stay accurate as long as the file is about sequencing — only services that surface the **identity** aspect of the rule (`submission_vars.go`) need a prose pass. |
+| `internal/handlers/submissions.go` | No SQL change. Type+comment renames: the catalog response type stays `submissionListEntry` (it's still a Schriftsatz-level list); doc comments speak of "procedural events whose kind is filing" instead of "rules of type filing". |
+| `internal/handlers/admin_rules.go` | URL path stays. JSON envelope stays. Page-render comments + log-line text shift to "procedural event". |
+| `internal/handlers/submission_drafts.go`, `deadlines.go`, `fristenrechner.go` | No service-layer change. |
+
+### §6.2 Slice B — structural
+
+Mostly load-bearing; not enumerated here in detail (out of scope per (R)=C). The shape:
+
+- `RuleEditorService` splits into `ProceduralEventService` + `SequencingRuleService` + `LegalSourceService`. The Save / Publish / Archive flow on the editor coordinates all three.
+- `DeadlineRuleService.GetByID` becomes `SequencingRuleService.GetByID`; the `submission_code` lookup moves to `ProceduralEventService.GetByCode`.
+- `SubmissionVarsService.loadPublishedRule` becomes `loadPublishedProceduralEvent` and returns a triple (`event`, `defaultSequencingRule`, `legalSource`); the variable-bag emission consumes all three.
+- `ProjectionService` and the Fristenrechner calculator read from `sequencing_rules` (same column set, same logic — only the table name changes).
+- `SubmissionService.list` (handlers/submissions.go) filters `procedural_events.event_kind IN ('filing', 'reply')`.
+- Backfill orphans + audit triggers (mig 079 / 089) are re-pointed at `sequencing_rules` + a new `procedural_events_audit`.
+
+---
+
+## §7 UI / i18n impact
+
+### §7.1 i18n keys (Slice A)
+
+Existing keys (DE + EN) at `frontend/src/client/i18n.ts` lines ~2834-2920 and ~5800-5890 — surface area is *labels*, not *placeholders-in-Word*:
+
+| Old key | New key (Slice A) | DE label | EN label |
+|---|---|---|---|
+| `admin.rules.list.title` | `admin.procedural_events.list.title` | "Verfahrensschritte verwalten — Paliad" | "Manage procedural events — Paliad" |
+| `admin.rules.list.heading` | `admin.procedural_events.list.heading` | "Verfahrensschritte verwalten" | "Manage procedural events" |
+| `admin.rules.list.subtitle` | `admin.procedural_events.list.subtitle` | "Verfahrensschritte anlegen, bearbeiten und freigeben. Lifecycle: draft → published → archived." | "Create, edit and publish procedural events. Lifecycle: draft → published → archived." |
+| `admin.rules.list.new` | `admin.procedural_events.list.new` | "+ Neuer Verfahrensschritt" | "+ New procedural event" |
+| `admin.rules.col.submission_code` | `admin.procedural_events.col.code` | "Code" (drop "/ Einreichung-Kennung" — the new heading already disambiguates) | "Code" |
+| `admin.rules.col.legal_citation` | `admin.procedural_events.col.legal_source` | "Rechtsgrundlage" | "Legal source" |
+| `admin.rules.col.name` | `admin.procedural_events.col.name` | "Bezeichnung" | "Name" |
+| `admin.rules.col.proceeding` | `admin.procedural_events.col.proceeding` | "Verfahrenstyp" | "Proceeding" |
+| `admin.rules.col.priority` | `admin.procedural_events.col.priority` | "Priorität" | "Priority" |
+| `admin.rules.col.lifecycle` | `admin.procedural_events.col.lifecycle` | "Lifecycle" | "Lifecycle" |
+| `admin.rules.col.modified` | `admin.procedural_events.col.modified` | "Zuletzt geändert" | "Last modified" |
+| `admin.rules.edit.title` | `admin.procedural_events.edit.title` | "Verfahrensschritt bearbeiten — Paliad" | "Edit procedural event — Paliad" |
+| `admin.rules.edit.heading.loading` | `admin.procedural_events.edit.heading.loading` | "Verfahrensschritt laden…" | "Loading procedural event…" |
+| `admin.rules.edit.breadcrumb` | `admin.procedural_events.edit.breadcrumb` | "← Verfahrensschritte verwalten" | "← Manage procedural events" |
+| `admin.rules.edit.field.submission_code` | `admin.procedural_events.edit.field.code` | "Code (Schriftsatz-Code / Einreichung-Kennung)" — keep the parenthetical so lawyers familiar with the old label know what they're looking at. | "Code (submission / procedural-event identifier)" |
+| `admin.rules.edit.field.rule_code` | `admin.procedural_events.edit.field.short_citation` | "Rechtsgrundlage (Kurzform)" | "Legal source (short form)" |
+| `admin.rules.edit.field.legal_source` | `admin.procedural_events.edit.field.legal_source` | "Rechtsgrundlage (Langform)" | "Legal source (long form)" |
+| `admin.rules.edit.field.name` | `admin.procedural_events.edit.field.name` | "Bezeichnung (DE)" | "Name (DE)" |
+| `admin.rules.edit.field.name_en` | `admin.procedural_events.edit.field.name_en` | "Bezeichnung (EN)" | "Name (EN)" |
+| `admin.rules.edit.field.proceeding` | `admin.procedural_events.edit.field.proceeding` | "Verfahrenstyp" | "Proceeding type" |
+| `admin.rules.edit.field.trigger` | `admin.procedural_events.edit.field.trigger` | "Trigger-Ereignis" | "Trigger event" |
+| `admin.rules.edit.field.parent` | `admin.procedural_events.edit.field.parent` | "Übergeordneter Verfahrensschritt (UUID)" | "Parent procedural event (UUID)" |
+| `admin.rules.edit.field.concept` | `admin.procedural_events.edit.field.concept` | "Konzept (UUID)" | "Concept (UUID)" |
+| `admin.rules.edit.field.sequence_order` | `admin.procedural_events.edit.field.sequence_order` | "Reihenfolge" | "Order" |
+| `admin.rules.edit.field.duration_value` | `admin.procedural_events.edit.field.duration_value` | "Dauer" | "Duration" |
+| `admin.rules.edit.field.primary_party` | `admin.procedural_events.edit.field.primary_party` | "Partei (typisch)" | "Primary party" |
+| `admin.rules.edit.field.event_type` | `admin.procedural_events.edit.field.event_kind` | "Art des Verfahrensschritts" | "Procedural-event kind" |
+| `admin.rules.edit.field.description` | `admin.procedural_events.edit.field.description` | "Beschreibung" | "Description" |
+
+**Legacy keys retained as aliases** so any existing translation imports or external integrations keep working — old keys point at the same DE/EN values during a deprecation window of one full Slice B cycle.
+
+### §7.2 Variable-bag placeholders (Slice A)
+
+`frontend/src/client/submission-draft.ts:155-185` — the catalog of placeholders the lawyer sees in the sidebar:
+
+| Old placeholder (kept as legacy alias) | New canonical placeholder | DE label | EN label |
+|---|---|---|---|
+| `{{rule.submission_code}}` | `{{procedural_event.code}}` | "Code (Verfahrensschritt)" | "Code (procedural event)" |
+| `{{rule.name}}` | `{{procedural_event.name}}` | "Bezeichnung" | "Name" |
+| `{{rule.name_de}}` | `{{procedural_event.name_de}}` | "Bezeichnung (DE)" | "Name (DE)" |
+| `{{rule.name_en}}` | `{{procedural_event.name_en}}` | "Bezeichnung (EN)" | "Name (EN)" |
+| `{{rule.legal_source}}` | `{{procedural_event.legal_source}}` | "Rechtsgrundlage (Code)" | "Legal source (code)" |
+| `{{rule.legal_source_pretty}}` | `{{procedural_event.legal_source_pretty}}` | "Rechtsgrundlage" | "Legal source" |
+| `{{rule.primary_party}}` | `{{procedural_event.primary_party}}` | "Partei (typisch)" | "Primary party" |
+| `{{rule.event_type}}` | `{{procedural_event.event_kind}}` | "Art des Verfahrensschritts" | "Procedural-event kind" |
+
+The catalog renders the canonical name in the "copy-this-placeholder" button. The variable bag (`submission_vars.go`) emits both names with identical values, so any Word template the lawyer already has continues to work; new templates are encouraged to use the canonical name.
+
+### §7.3 Admin rule-editor form (Slice A)
+
+`frontend/src/admin-rules-edit.tsx:74-110` — i18n key rebinds + heading text update. The DOM `id` attributes (`f-submission-code`, `f-rule-code`, `f-legal-source`, …) stay — they're internal, the rename here is cosmetic, the form still POSTs the same JSON envelope (Slice A doesn't touch the API). The fieldset `legend` for the "Identität" section changes to "Verfahrensschritt-Identität" (DE) / "Procedural-event identity" (EN). The "Verfahren & Trigger" section heading stays — that section is about sequencing, and Slice A doesn't rename sequencing-level labels (those are Slice B).
+
+### §7.4 Project-detail Schriftsätze tab + dashboard
+
+`frontend/src/client/submissions.ts`, `submissions-index.ts`: no surface-level label change in Slice A. The Schriftsätze tab continues to show Schriftsätze (the lawyer's preferred term for *filings specifically*). The tab is a filtered view onto procedural events of kind `filing`/`reply` — that distinction surfaces only in admin contexts.
+
+### §7.5 Help text + docs
+
+A short addition to the in-app help: "What is a procedural event?" — one-paragraph definition explaining the umbrella term, with examples (Klage, Klageerwiderung, mündliche Verhandlung, Endurteil). Stored in `frontend/src/client/i18n.ts` under `help.procedural_events.intro`. Out of scope for the URL/router changes — added as static copy where it fits naturally.
+
+---
+
+## §8 Slice plan
+
+### §8.1 Slice A (this design's downstream task)
+
+**Scope:** prose-only rename per §3 ("renamed in Slice A" list).
+
+**Mechanics:**
+
+1. Add 8 new placeholder keys to the variable bag in `submission_vars.go` (1:1 with the existing 8 `rule.*` keys). Keep the legacy keys.
+2. Update `frontend/src/client/submission-draft.ts` placeholder catalog labels.
+3. Rebind admin i18n keys per §7.1 (with legacy keys retained).
+4. Update admin page titles + section headings.
+5. Update Go struct comments + service docstrings in `submission_vars.go`, `deadline_rule_service.go`, `rule_editor_service.go`, `submission_draft_service.go`, `submissions.go` handler. No code-flow change.
+6. Update `internal/handlers/submissions.go` doc comments.
+7. Add a short `docs/glossary.md` entry (or extend an existing one) for "procedural event" / "Verfahrensschritt" — single source of truth for the term.
+8. Tests: rename strings in existing test fixtures + add a regression test that the variable bag emits **both** the legacy `rule.X` and the canonical `procedural_event.X` keys with the same value. (Critical — without this test, a future commit could drop the legacy alias and silently break user templates.)
+9. Manual smoke: open the admin rule editor, confirm the new title appears. Open the submission-draft editor, confirm both `{{rule.X}}` and `{{procedural_event.X}}` placeholders are listed (with canonical first). Generate a `.docx` from a project using each placeholder name — both render identically.
+
+**Risk:** very low. No DB change, no API change, fully reversible.
+
+**No hours estimate per project CLAUDE.md.**
+
+### §8.2 Slice B (separate mai task — designed here, hired later)
+
+**Scope:** structural rework per §4 + §5.
+
+**Mechanics:** Phase 1 → Phase 4 per §5.
+
+**Prerequisite:** m greenlights via a new mai task with this doc + §11's open items addressed. **Not part of Slice A.**
+
+**Sub-slices (suggested for Slice B's own task):**
+
+- **B.0** — Re-validate this doc's premises against live DB (numbers shift over weeks).
+- **B.1** — Phase 1 additive migration + backfill (mig 124).
+- **B.2** — Phase 2 dual-write + read-fallback.
+- **B.3** — Phase 3 read cutover (no schema change).
+- **B.4** — Phase 4 destructive drop (downtime window).
+- **B.5** — Rename Go types `DeadlineRule` → `SequencingRule` + `ProceduralEvent`; rename JSON API envelope keys with a deprecation header. Independent of B.4.
+- **B.6** — Rename admin URL paths `/admin/rules` → `/admin/procedural-events` with redirects. Optional / low-priority.
+
+### §8.3 Why splitting is the right call
+
+The conflation is real, but the *fix* for the most-painful surface (the editor sidebar) is independent of the table restructure. Splitting lets m ship the fix this week, see whether the prose change alone resolves enough of the cognitive friction, and then decide whether the structural rework is still worth the migration cost. If after Slice A m says "this reads fine now, B isn't worth it", that's a legitimate outcome — Slice B is a *good* refactor, not an *urgent* one.
+
+---
+
+## §9 Risk assessment
+
+### §9.1 Slice A risks
+
+| Risk | Likelihood | Severity | Mitigation |
+|---|---|---|---|
+| Lawyer's existing Word template has `{{rule.submission_code}}` baked in; a future commit drops the legacy alias and breaks templates. | Low (Slice A keeps the alias) | High if it happens | Regression test (§8.1 step 8) asserts both keys emit. Add an audit-log line on every variable-bag call recording which keys were consumed by the merge engine — gives a 30-day window of evidence before we'd consider deprecating the legacy keys. |
+| i18n key rename misses a binding, leaving an English string visible to a DE user. | Medium | Low | The build pipeline (`bun test` / `bun build`) fails on missing i18n keys in `i18n-keys.ts`. Add the new keys to the type union; leave the old keys in the union with `@deprecated` JSDoc. |
+| Renamed admin page heading confuses returning admin users ("Where did 'Regeln verwalten' go?"). | Medium | Low | One-time changelog entry; the URL `/admin/rules` is unchanged so muscle memory still lands them on the page. Internal users only (whitelist-gated). |
+| Slice A reads as "we're done" and Slice B never ships. | Medium | Medium (the model stays wrong) | This doc files the Slice B design as a separate task entry **before** Slice A merges, so the to-do is visible. m's call whether to schedule it. |
+
+### §9.2 Slice B risks (deferred; recorded for the future task)
+
+| Risk | Mitigation |
+|---|---|
+| Backfill collapses too eagerly: 10 multi-row submission_codes today are `_archived_litigation.*` — confirm they should collapse into one procedural event with 2-5 sequencing variants, vs. each row becoming its own procedural event. | The `_archived_litigation.*` codes are archived per their prefix — collapse is safe. **Decision-flag for Slice B's own design pass.** |
+| `deadline_concepts` linkage (125 of 254 rules link to a concept) — does the concept attach to the procedural event or the sequencing rule? §4.2 says procedural event; verify this is right when re-validating premises in B.0. | Read-path audit: every consumer that joins `deadline_rules.concept_id` (rule_editor, projection, fristenrechner) operates on the rule-level today. Reconfirm none of them depend on per-jurisdiction concept-attachment. |
+| The dual-write window introduces drift if a write hits one side and fails on the other. | Atomicity via single transaction per write in `RuleEditorService`. Daily drift-check job (one SELECT pair, alert if mismatched). |
+| `paliad.deadlines.rule_id` (1 live row, but more in future) — backfilling `procedural_event_id` + `sequencing_rule_id` must not orphan the live row. | The 1 live row joins cleanly. Backfill in the same migration that adds the new columns. |
+| The submission-draft `submission_code` text key — what if two `procedural_events.code` values collide post-rename (e.g. a draft was saved against a code that we then archive)? | Slice B Phase 1 enforces `procedural_events.code UNIQUE`; the backfill verifies no collision on the existing 158 distinct values. Drafts with codes that no longer exist as published procedural events are handled by the existing `submission_drafts.submission_code` text fallback (no FK enforcement). |
+| Slice B's API-key rename (`submission_code` → `code` in JSON) breaks external integrations. | None exist today (paliad is internal-only); add a one-Slice deprecation header (`X-Deprecated-Field: submission_code`) before flipping. |
+| **Coordination risk with future fristen/calculator work.** The Fristenrechner calculator reads `deadline_rules` directly today. Slice B Phase 2's read-fallback handles this, but a parallel calculator feature in flight could land changes that need re-merging. | B.0's job: confirm no in-flight task touches `deadline_rules` table shape before scheduling. |
+
+### §9.3 What rolls Slice A back
+
+`git revert <slice-a-commit>` + reload. Zero data side-effects (no DB writes). 30 seconds.
+
+### §9.4 What rolls Slice B back
+
+Per phase — Phases 1-3 reversible via reverting code + `DROP TABLE`. Phase 4 reversible only by restoring `deadline_rules` from the `_pre_<n>` snapshot taken at the start of Phase 4. Same posture as mig 091 — m's call when to commit to this point.
+
+---
+
+## §10 Out of scope
+
+- **Renaming `paliad.events`** (the audit feed). Distinct table, distinct concept. The umbrella-term lock (§2) deliberately uses "procedural event" not "event" to avoid colliding with it.
+- **Renaming `paliad.deadline_concepts`** to align with the procedural-event taxonomy. The concept layer is the cross-proceeding semantic bridge (einstein 2026-05-08 Q5); the relationship "procedural event has-a concept" already reads cleanly under the new term.
+- **Per-jurisdiction variations of the same procedural event** (issue body's explicit out-of-scope). The 10 multi-row codes in the corpus today stay multi-row.
+- **Multi-tenant / cross-firm sharing of procedural events** — paliad is single-tenant per deploy via `FIRM_NAME`; cross-firm is a separate design.
+- **einstein's `proceeding_event_edges` graph proposal.** That design proposed a graph of typed event-types connected by typed edges. This design's procedural-events / sequencing-rules split is **compatible** with that graph shape (the edges would attach to procedural-event-IDs rather than sequencing-rule-IDs), but the graph layer is a Slice C, not Slice B. Flagged for future continuity, not part of either slice here.
+- **Renaming Go type `DeadlineRule` to `SequencingRule` or `ProceduralEvent` in Slice A.** Slice A is prose; Slice B's B.5 sub-slice handles the type rename. Coupling them costs the reversibility property.
+- **API-envelope key renames** (`submission_code` → `code`, `event_type` → `event_kind` on the wire). Slice B only.
+- **URL path renames** (`/admin/rules` → `/admin/procedural-events`). Slice B.6, optional.
+- **Touching `paliad.trigger_events`** beyond keeping the FK path open (today `deadline_rules.trigger_event_id`; Slice B maps to `sequencing_rules.trigger_event_id`).
+- **Touching `paliad.event_categories` / Pathway-B navigation.** Independent layer.
+
+---
+
+## §11 Open questions for m (escalated via `mai instruct head` per project CLAUDE.md)
+
+Per project CLAUDE.md "Head answers questions — NO AskUserQuestion" rule, these are surfaced to head, not picked-as-chip with the user.
+
+| ID | Question | Inventor recommendation | Material to head? |
+|---|---|---|---|
+| **Q1** | Scope: cosmetic-only (A) · full restructure (B) · cosmetic now + B as planned follow-up (C). | **(R) = C** | Yes — material. Defines whether Slice B is hired today or filed as a future task. |
+| **Q2** | Umbrella term: "procedural event" (DE: Verfahrensschritt) · "submission" (filings only) · "Verfahrensereignis" · other. | **(R) = procedural event / Verfahrensschritt** | Yes — material. The term ripples through every label in §7. Inventor's pick is the canonical choice; head can override with a single message. |
+| **Q3** | Slice B migration shape: confirmed (§4 + §5) or rescope. | **(R) = §4 + §5 as written, decision deferred until Slice B is hired** | No — informational. Locked when Slice B's own design pass runs. |
+| **Q4** | Effect on Schriftsätze surface: filter `procedural_events.event_kind IN ('filing', 'reply')` is acceptable replacement for today's `event_type='filing'`. | **(R) = yes, semantically equivalent under Slice B; no behavior change to lawyer.** | No — informational. |
+| **Q5** | Are the 10 archived multi-row submission_codes (`_archived_litigation.*`) safe to collapse into single procedural events with multiple sequencing variants in Slice B? | **(R) = yes, prefix indicates archival; collapse-safe.** | No — informational, defers to Slice B. |
+| **Q6** | `concept_id` attaches to procedural event, not sequencing rule. Confirmable? | **(R) = yes, per §4.2 (one concept per identity, not per jurisdiction).** | No — informational, defers to Slice B. |
+| **Q7** | Keep the legacy `{{rule.X}}` placeholder aliases **forever**, or set a deprecation horizon (e.g. 1 year)? | **(R) = forever, with `@deprecated` annotation in the catalog. Removing them risks breaking lawyer-authored templates that paliad doesn't see.** | Yes — material to Slice A's contract (test in §8.1 step 8 asserts both keys emit). |
+| **Q8** | Document side: update m/paliad#93 issue body to fix the `deadlines.deadline_rule_id` → `deadlines.rule_id` typo (§1 last paragraph). | **(R) = yes, head's call when to edit.** | No — informational, doc hygiene. |
+| **Q9** | After Slice A ships, do we file Slice B as a new mai task **now** (so it's visible), or wait for m to ask? | **(R) = file now, status:planning, no owner. Visibility >> deferred surprise.** | Yes — material to "does the model stay wrong forever". |
+
+Q1, Q2, Q7, Q9 are the four head needs to answer before the coder shift. Q3-Q6, Q8 defer cleanly.
+
+---
+
+## §12 Appendix — verbatim m quote
+
+From m's report 2026-05-25 15:02 (paliad#93 body):
+
+> This shows how our 'rule' table system may need a revision?! It feels like we are rule based not submission based. But here we have a specific submission that is connected to a rule (as in: legal norm). And of course also connected to other 'procedural events' (which is a good term for it all) by rules how they are sequenced. But it makes it sound weird in the fields...
+
+The design above takes m's three-way split — *the procedural event* / *the legal norm* / *the rule by which they are sequenced* — at face value and turns it into a column-level map (§4.2), a slice plan (§8), and a deprecation contract (§9.1).
+
+---
+
+*End of design.*

frontend/build.ts

@@ -46,7 +46,6 @@ import { renderAdminApprovalPolicies } from "./src/admin-approval-policies";
 import { renderAdminBroadcasts } from "./src/admin-broadcasts";
 import { renderAdminRulesList } from "./src/admin-rules-list";
 import { renderAdminRulesEdit } from "./src/admin-rules-edit";
-import { renderAdminRulesExport } from "./src/admin-rules-export";
 import { renderPaliadin } from "./src/paliadin";
 import { renderAdminPaliadin } from "./src/admin-paliadin";
 import { renderAdminBackups } from "./src/admin-backups";
@@ -284,7 +283,6 @@ async function build() {
       join(import.meta.dir, "src/client/admin-broadcasts.ts"),
       join(import.meta.dir, "src/client/admin-rules-list.ts"),
       join(import.meta.dir, "src/client/admin-rules-edit.ts"),
-      join(import.meta.dir, "src/client/admin-rules-export.ts"),
       join(import.meta.dir, "src/client/paliadin.ts"),
       // t-paliad-161 — inline Paliadin widget. Loaded via the
       // PaliadinWidget component on every authenticated page, so the
@@ -416,7 +414,6 @@ async function build() {
   await Bun.write(join(DIST, "admin-broadcasts.html"), renderAdminBroadcasts());
   await Bun.write(join(DIST, "admin-rules-list.html"), renderAdminRulesList());
   await Bun.write(join(DIST, "admin-rules-edit.html"), renderAdminRulesEdit());
-  await Bun.write(join(DIST, "admin-rules-export.html"), renderAdminRulesExport());
   await Bun.write(join(DIST, "paliadin.html"), renderPaliadin());
   await Bun.write(join(DIST, "admin-paliadin.html"), renderAdminPaliadin());
   await Bun.write(join(DIST, "admin-backups.html"), renderAdminBackups());

frontend/src/admin-rules-export.tsx

@@ -1,80 +0,0 @@
-import { h } from "./jsx";
-import { Sidebar } from "./components/Sidebar";
-import { PaliadinWidget } from "./components/PaliadinWidget";
-import { BottomNav } from "./components/BottomNav";
-import { Footer } from "./components/Footer";
-import { PWAHead } from "./components/PWAHead";
-
-// /admin/rules/export — Slice 11b (t-paliad-192). Surfaces the
-// GET /admin/api/rules/export-migrations endpoint as a SQL preview the
-// editor can copy or download. Optional ?since=<audit-id> query lets
-// the editor scope the export to a particular audit window — empty =
-// every un-exported audit row.
-export function renderAdminRulesExport(): string {
-  return "<!DOCTYPE html>" + (
-    <html lang="de">
-      <head>
-        <meta charset="UTF-8" />
-        <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
-        <meta name="theme-color" content="#BFF355" />
-        <meta name="apple-mobile-web-app-capable" content="yes" />
-        <meta name="apple-mobile-web-app-status-bar-style" content="default" />
-        <PWAHead />
-        <title data-i18n="admin.rules.export.title">Regel-Migrations exportieren &mdash; Paliad</title>
-        <link rel="stylesheet" href="/assets/global.css" />
-      </head>
-      <body className="has-sidebar">
-        <Sidebar currentPath="/admin/rules" />
-        <BottomNav currentPath="/admin/rules" />
-
-        <main>
-          <section className="tool-page">
-            <div className="container">
-              <div className="tool-header">
-                <div>
-                  <p className="admin-rules-breadcrumb">
-                    <a href="/admin/rules" data-i18n="admin.rules.export.breadcrumb">&larr; Regeln verwalten</a>
-                  </p>
-                  <h1 data-i18n="admin.rules.export.heading">Regel-Migrations exportieren</h1>
-                  <p className="tool-subtitle" data-i18n="admin.rules.export.subtitle">
-                    Generiert ein <code>*.up.sql</code>-Blob mit allen unsynchronisierten Audit-Ver&auml;nderungen.
-                    Manuell in <code>internal/db/migrations/</code> einchecken.
-                  </p>
-                </div>
-              </div>
-
-              <div className="admin-rules-export-controls">
-                <div className="form-field">
-                  <label htmlFor="export-since" data-i18n="admin.rules.export.field.since">Startend ab Audit-ID (optional)</label>
-                  <input type="text" id="export-since" className="admin-rules-input" placeholder="UUID, leer = alle un-exportierten" />
-                </div>
-                <button type="button" id="export-run" className="btn-primary" data-i18n="admin.rules.export.run">
-                  Export generieren
-                </button>
-                <button type="button" id="export-download" className="btn-secondary" style="display:none" data-i18n="admin.rules.export.download">
-                  Als Datei herunterladen
-                </button>
-                <button type="button" id="export-copy" className="btn-secondary" style="display:none" data-i18n="admin.rules.export.copy">
-                  In Zwischenablage kopieren
-                </button>
-              </div>
-
-              <div id="export-feedback" className="form-msg" style="display:none" />
-
-              <div className="admin-rules-export-summary" id="export-summary" style="display:none">
-                <span id="export-summary-count" />
-                <span id="export-summary-latest" />
-              </div>
-
-              <pre id="export-output" className="admin-rules-export-pre" />
-            </div>
-          </section>
-        </main>
-
-        <Footer />
-        <PaliadinWidget />
-        <script src="/assets/admin-rules-export.js"></script>
-      </body>
-    </html>
-  );
-}

frontend/src/admin-rules-list.tsx

@@ -39,9 +39,6 @@ export function renderAdminRulesList(): string {
                   </p>
                 </div>
                 <div className="admin-rules-header-actions">
-                  <a href="/admin/rules/export" className="btn-secondary" data-i18n="admin.rules.list.export">
-                    Migrations exportieren
-                  </a>
                   <button type="button" id="rules-new-btn" className="btn-primary" data-i18n="admin.rules.list.new">
                     + Neue Regel
                   </button>

frontend/src/client/admin-rules-edit.ts

@@ -51,7 +51,10 @@ interface Rule {
 interface ProceedingType {
   id: number;
   code: string;
-  name_de: string;
+  // `name` is the German display name on the wire; the Go `ProceedingType`
+  // model serialises `db:"name"` as JSON key `name`. Don't reach for
+  // `name_de` — that field does not exist in this payload (m/paliad#113).
+  name: string;
   name_en: string;
 }
 
@@ -169,7 +172,8 @@ function fillProceedingSelect(selectId: string, list: ProceedingType[]) {
   for (const pt of list) {
     const opt = document.createElement("option");
     opt.value = String(pt.id);
-    opt.textContent = `${pt.code} · ${getLang() === "en" ? pt.name_en : pt.name_de}`;
+    const name = getLang() === "en" ? pt.name_en : pt.name;
+    opt.textContent = name ? `${pt.code} · ${name}` : pt.code;
     sel.appendChild(opt);
   }
 }

frontend/src/client/admin-rules-export.ts

@@ -1,100 +0,0 @@
-import { initI18n, t } from "./i18n";
-import { initSidebar } from "./sidebar";
-
-// admin-rules-export.ts — /admin/rules/export. Calls
-// GET /admin/api/rules/export-migrations[?since=<uuid>] and renders the
-// SQL blob server-side. Download builds a Blob URL and triggers a
-// fake <a> click; copy uses navigator.clipboard.
-
-interface ExportResult {
-  migration_sql: string;
-  count: number;
-  latest_audit_id: string;
-}
-
-let latest: ExportResult | null = null;
-
-function showFeedback(msg: string, isError: boolean) {
-  const el = document.getElementById("export-feedback") as HTMLElement | null;
-  if (!el) return;
-  el.textContent = msg;
-  el.className = "form-msg " + (isError ? "form-msg-error" : "form-msg-success");
-  el.style.display = "block";
-  if (!isError) setTimeout(() => { el.style.display = "none"; }, 4000);
-}
-
-async function runExport() {
-  const since = (document.getElementById("export-since") as HTMLInputElement).value.trim();
-  const qs = new URLSearchParams();
-  if (since) qs.set("since", since);
-  const url = "/admin/api/rules/export-migrations" + (qs.toString() ? "?" + qs.toString() : "");
-  const out = document.getElementById("export-output") as HTMLElement;
-  const summary = document.getElementById("export-summary") as HTMLElement;
-  const dl = document.getElementById("export-download") as HTMLElement;
-  const cp = document.getElementById("export-copy") as HTMLElement;
-  out.textContent = t("admin.rules.export.running") || "Lade...";
-  summary.style.display = "none";
-  dl.style.display = "none";
-  cp.style.display = "none";
-
-  const resp = await fetch(url);
-  if (!resp.ok) {
-    const body = await resp.json().catch(() => ({ error: resp.statusText }));
-    showFeedback(body.error || (t("admin.rules.export.error") || "Export fehlgeschlagen."), true);
-    out.textContent = "";
-    return;
-  }
-  latest = await resp.json() as ExportResult;
-  out.textContent = latest.migration_sql;
-  summary.style.display = "";
-  const countEl = document.getElementById("export-summary-count") as HTMLElement;
-  const latestEl = document.getElementById("export-summary-latest") as HTMLElement;
-  countEl.textContent = (t("admin.rules.export.count") || "Audit-Zeilen: {n}").replace("{n}", String(latest.count));
-  if (latest.latest_audit_id) {
-    latestEl.textContent = (t("admin.rules.export.latest") || "Letzte Audit-ID: {id}").replace("{id}", latest.latest_audit_id);
-  } else {
-    latestEl.textContent = "";
-  }
-  if (latest.count > 0) {
-    dl.style.display = "";
-    cp.style.display = "";
-    showFeedback((t("admin.rules.export.ok") || "{n} Audit-Zeilen exportiert.").replace("{n}", String(latest.count)), false);
-  } else {
-    showFeedback(t("admin.rules.export.no_pending") || "Keine offenen Audit-Zeilen zum Export.", false);
-  }
-}
-
-function downloadFile() {
-  if (!latest) return;
-  const ts = new Date().toISOString().replace(/[:.]/g, "-").slice(0, 19);
-  const name = `rules-export-${ts}.up.sql`;
-  const blob = new Blob([latest.migration_sql], { type: "application/sql" });
-  const url = URL.createObjectURL(blob);
-  const a = document.createElement("a");
-  a.href = url;
-  a.download = name;
-  document.body.appendChild(a);
-  a.click();
-  document.body.removeChild(a);
-  URL.revokeObjectURL(url);
-}
-
-async function copyToClipboard() {
-  if (!latest) return;
-  try {
-    await navigator.clipboard.writeText(latest.migration_sql);
-    showFeedback(t("admin.rules.export.copied") || "In Zwischenablage kopiert.", false);
-  } catch (e) {
-    showFeedback(t("admin.rules.export.copy_failed") || "Kopieren fehlgeschlagen.", true);
-  }
-}
-
-function init() {
-  initI18n();
-  initSidebar();
-  (document.getElementById("export-run") as HTMLElement).addEventListener("click", runExport);
-  (document.getElementById("export-download") as HTMLElement).addEventListener("click", downloadFile);
-  (document.getElementById("export-copy") as HTMLElement).addEventListener("click", copyToClipboard);
-}
-
-document.addEventListener("DOMContentLoaded", init);

frontend/src/client/admin-rules-list.ts

@@ -29,7 +29,11 @@ interface Rule {
 interface ProceedingType {
   id: number;
   code: string;
-  name_de: string;
+  // `name` is the German display name on the wire; the Go `ProceedingType`
+  // model serialises `db:"name"` as JSON key `name` (the schema treats DE
+  // as primary). EN lives in `name_en`. Don't reach for `name_de` — that
+  // field does not exist in this payload (cf. m/paliad#113).
+  name: string;
   name_en: string;
   category: string;
 }
@@ -125,7 +129,12 @@ function proceedingLabel(id: number | null | undefined): string {
   if (id == null) return "—";
   const pt = proceedings.find((p) => p.id === id);
   if (!pt) return `#${id}`;
-  const name = getLang() === "en" ? pt.name_en : pt.name_de;
+  const name = getLang() === "en" ? pt.name_en : pt.name;
+  // Guard against a proceeding row that's missing the active-language
+  // name (or against a stale field-name mismatch slipping back in).
+  // Show the code on its own rather than "code · undefined" — that
+  // literal string is the smell that surfaced this bug (m/paliad#113).
+  if (!name) return pt.code;
   return `${pt.code} · ${name}`;
 }
 
@@ -153,7 +162,8 @@ async function loadProceedings(): Promise<void> {
   for (const pt of proceedings) {
     const opt = document.createElement("option");
     opt.value = String(pt.id);
-    opt.textContent = `${pt.code} · ${getLang() === "en" ? pt.name_en : pt.name_de}`;
+    const name = getLang() === "en" ? pt.name_en : pt.name;
+    opt.textContent = name ? `${pt.code} · ${name}` : pt.code;
     sel.appendChild(opt);
   }
 }

frontend/src/client/date-range-picker.ts

@@ -191,25 +191,37 @@ export function mountDateRangePicker(opts: MountOpts): PickerHandle {
   function renderPanel(): void {
     panel.replaceChildren();
 
-    // Three groups in a single row: past fan / ALLES centre / next fan.
-    const row = document.createElement("div");
-    row.className = "date-range-row";
+    // Three vertical columns: Past (closest→farthest top→bottom),
+    // NOW (Heute + Alles), Future (closest→farthest). The grid
+    // visualises time as space around NOW — each column's top is
+    // closest to the current moment, bottom is furthest away.
+    const grid = document.createElement("div");
+    grid.className = "date-range-grid";
 
-    const pastGroup = renderFan(
-      PAST_HORIZONS.filter((h) => presets.includes(h)),
+    // Past column: PAST_HORIZONS registry is outermost→innermost
+    // (past_all → past_1d); reverse for closeness-to-NOW ordering
+    // (past_1d at top, past_all at bottom).
+    const pastCol = renderColumn(
       "past",
+      t("date_range.fan.past.label"),
+      [...PAST_HORIZONS].reverse().filter((h) => presets.includes(h)),
     );
-    const centerGroup = renderCenter();
-    const nextGroup = renderFan(
-      NEXT_HORIZONS.filter((h) => presets.includes(h)),
-      "next",
+    const nowCol = renderNowColumn();
+    // Future column: NEXT_HORIZONS registry is already in closeness
+    // order (next_1d → next_all). next_1d moves to the NOW column as
+    // "Heute" (semantically just-today, single-day window), so the
+    // future column skips it.
+    const futureCol = renderColumn(
+      "future",
+      t("date_range.fan.future.label"),
+      NEXT_HORIZONS.filter((h) => h !== "next_1d" && presets.includes(h)),
     );
 
-    if (pastGroup) row.appendChild(pastGroup);
-    if (centerGroup) row.appendChild(centerGroup);
-    if (nextGroup) row.appendChild(nextGroup);
+    if (pastCol) grid.appendChild(pastCol);
+    if (nowCol) grid.appendChild(nowCol);
+    if (futureCol) grid.appendChild(futureCol);
 
-    panel.appendChild(row);
+    panel.appendChild(grid);
 
     // Custom-range section ("Anpassen"). Toggle button + collapsible
     // date-pair editor below.
@@ -218,49 +230,57 @@ export function mountDateRangePicker(opts: MountOpts): PickerHandle {
     }
   }
 
-  function renderFan(horizons: readonly TimeHorizon[], side: "past" | "next"): HTMLElement | null {
+  function renderColumn(
+    side: "past" | "future",
+    heading: string,
+    horizons: readonly TimeHorizon[],
+  ): HTMLElement | null {
     if (horizons.length === 0) return null;
-    const group = document.createElement("div");
-    group.className = `date-range-fan date-range-fan--${side}`;
-    group.setAttribute("role", "group");
-    group.setAttribute("aria-label", side === "past"
-      ? t("date_range.fan.past.label")
-      : t("date_range.fan.future.label"));
+    const col = document.createElement("div");
+    col.className = `date-range-col date-range-col--${side}`;
+    col.setAttribute("role", "group");
+    col.setAttribute("aria-label", heading);
+
+    const head = document.createElement("div");
+    head.className = "date-range-col-heading";
+    head.textContent = heading;
+    col.appendChild(head);
+
     for (const h of horizons) {
-      group.appendChild(makeChip(h));
+      col.appendChild(makeChip(h));
     }
-    return group;
+    return col;
   }
 
-  function renderCenter(): HTMLElement | null {
-    if (!presets.includes("any")) return null;
-    const wrap = document.createElement("div");
-    wrap.className = "date-range-center";
-    const btn = document.createElement("button");
-    btn.type = "button";
-    btn.className = "date-range-center-btn";
-    if (value.horizon === "any" || value.horizon === "all") {
-      btn.classList.add("date-range-center-btn--active");
-    }
-    btn.setAttribute("aria-pressed", String(value.horizon === "any" || value.horizon === "all"));
-    btn.dataset.testid = `${opts.surface}.date-range-chip.any`;
+  function renderNowColumn(): HTMLElement | null {
+    const showHeute = presets.includes("next_1d");
+    const showAlles = presets.includes("any");
+    if (!showHeute && !showAlles) return null;
 
-    const glyph = document.createElement("span");
-    glyph.className = "date-range-center-glyph";
+    const col = document.createElement("div");
+    col.className = "date-range-col date-range-col--now";
+    col.setAttribute("role", "group");
+    col.setAttribute("aria-label", t("date_range.center.label"));
+
+    const glyph = document.createElement("div");
+    glyph.className = "date-range-col-heading date-range-col-heading--glyph";
     glyph.setAttribute("aria-hidden", "true");
     glyph.textContent = "⌖"; // ⌖ POSITION INDICATOR
-    const label = document.createElement("span");
-    label.className = "date-range-center-label";
-    label.textContent = t("date_range.center.label");
-    btn.appendChild(glyph);
-    btn.appendChild(label);
+    col.appendChild(glyph);
 
-    btn.addEventListener("click", () => {
-      commit({ horizon: "any" }, /*closeAfter*/ true);
-    });
-
-    wrap.appendChild(btn);
-    return wrap;
+    if (showHeute) col.appendChild(makeChip("next_1d"));
+    if (showAlles) {
+      const allesChip = makeChip("any");
+      // Legacy "all" horizon also lights up Alles for back-compat
+      // with saved Custom Views that store the bidirectional-unbounded
+      // value (Q26 — parser preserves it, picker surfaces it here).
+      if (value.horizon === "all") {
+        allesChip.classList.add("agenda-chip-active");
+        allesChip.setAttribute("aria-pressed", "true");
+      }
+      col.appendChild(allesChip);
+    }
+    return col;
   }
 
   function makeChip(h: TimeHorizon): HTMLButtonElement {

frontend/src/client/deadlines-detail.ts

@@ -465,7 +465,8 @@ function refreshRuleAutoDisplay(): void {
   panel.style.display = "";
   const r = currentAutoRule();
   if (r) {
-    text.textContent = formatRuleLabel(r);
+    // Canonical "Name · Citation" with muted citation (t-paliad-258 addendum).
+    text.innerHTML = formatRuleLabelHTML(r, esc);
     text.classList.remove("rule-auto-text--empty");
     return;
   }

frontend/src/client/deadlines-new.ts

@@ -8,7 +8,7 @@ import {
   type PickerHandle,
 } from "./event-types";
 import { projectIndent } from "./project-indent";
-import { formatRuleLabel } from "./rule-label";
+import { formatRuleLabel, formatRuleLabelHTML } from "./rule-label";
 
 let eventTypePicker: PickerHandle | null = null;
 let currentUserAdmin = false;
@@ -192,7 +192,8 @@ function refreshRuleAutoDisplay(): void {
   panel.style.display = "";
   const rule = currentAutoRule();
   if (rule) {
-    text.textContent = formatRuleLabel(rule);
+    // Canonical "Name · Citation" with muted citation (t-paliad-258 addendum).
+    text.innerHTML = formatRuleLabelHTML(rule, esc);
     text.classList.remove("rule-auto-text--empty");
     return;
   }

frontend/src/client/filter-bar/axes.ts

@@ -73,13 +73,16 @@ export function renderAxis(axis: AxisKey, ctx: AxisCtx, opts?: RenderAxisOpts):
 
 type TimeHorizonValue = NonNullable<BarState["time"]>["horizon"];
 
-// Default chip set when the surface doesn't override. Matches the
-// forward-leaning bias of the legacy filter-bar default (the universal
-// substrate is more often used for "what's coming up" than "what just
-// happened") but now covers the full symmetric fan plus past_30d for
-// quick recent-history lookups.
+// Default chip set when the surface doesn't override. Mirrors m's
+// 3-column picker spec (t-paliad-278): symmetric 7d/30d/90d/all fan
+// per side, plus Heute (next_1d) + Alles (any) in the centre column,
+// plus Anpassen. Surfaces with a tighter scope (project history is
+// past-only) keep overriding via `timePresets`.
 const DEFAULT_TIME_PRESETS: TimeHorizonValue[] = [
-  "past_30d", "past_7d", "any", "next_7d", "next_30d", "next_90d", "custom",
+  "past_7d", "past_30d", "past_90d", "past_all",
+  "next_1d", "any",
+  "next_7d", "next_30d", "next_90d", "next_all",
+  "custom",
 ];
 
 function renderTimeAxis(ctx: AxisCtx, presetOverride?: TimeHorizonValue[]): HTMLElement {

frontend/src/client/filter-bar/compute-effective.test.ts

@@ -0,0 +1,126 @@
+// Unit tests for the FilterBar's computeEffective() overlay. These pin
+// the contract that any chip the user clicks ends up as a predicate the
+// server can see — the t-paliad-283 regression had four sources picking
+// up zero narrowing for /views/any because the bar's chip click didn't
+// produce a non-empty `filter.predicates` for that source.
+//
+// Run with `bun test`.
+
+import { test, expect, describe } from "bun:test";
+import { computeEffective } from "./index";
+import type { FilterSpec, RenderSpec } from "../views/types";
+import type { BarState } from "./types";
+
+// Mirrors paliad.user_views row {slug: "any"} — the saved Custom View
+// that triggered the t-paliad-283 regression report.
+const ANY_VIEW_FILTER: FilterSpec = {
+  version: 1,
+  sources: ["deadline", "appointment", "project_event", "approval_request"],
+  scope: { projects: { mode: "all_visible" } },
+  time: { field: "auto", horizon: "past_30d" },
+};
+
+const ANY_VIEW_RENDER: RenderSpec = {
+  shape: "list",
+  list: { sort: "date_asc", density: "comfortable" },
+};
+
+describe("filter-bar/computeEffective — /views/any (all 4 sources)", () => {
+  test("empty state leaves base spec intact (no overlays)", () => {
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, {});
+    expect(eff.filter.sources).toEqual([
+      "deadline", "appointment", "project_event", "approval_request",
+    ]);
+    expect(eff.filter.time).toEqual({ field: "auto", horizon: "past_30d" });
+    // predicates may be {} (the bar zero-fills it) but never carries a
+    // stray narrowing on any source — that would silently filter
+    // results the user never asked to filter.
+    for (const src of ANY_VIEW_FILTER.sources) {
+      expect(eff.filter.predicates?.[src]).toBeUndefined();
+    }
+  });
+
+  test("deadline_status chip narrows deadline predicate", () => {
+    const state: BarState = { deadline_status: ["pending"] };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.predicates?.deadline?.status).toEqual(["pending"]);
+  });
+
+  test("appointment_type chip narrows appointment predicate", () => {
+    const state: BarState = { appointment_type: ["hearing"] };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.predicates?.appointment?.appointment_types).toEqual(["hearing"]);
+  });
+
+  test("approval_viewer_role chip narrows approval predicate", () => {
+    const state: BarState = { approval_viewer_role: "any_visible" };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.predicates?.approval_request?.viewer_role).toBe("any_visible");
+  });
+
+  test("approval_status chip narrows approval predicate", () => {
+    const state: BarState = { approval_status: ["pending", "approved"] };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.predicates?.approval_request?.status).toEqual(["pending", "approved"]);
+  });
+
+  test("approval_entity_type chip narrows approval predicate", () => {
+    const state: BarState = { approval_entity_type: ["deadline"] };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.predicates?.approval_request?.entity_types).toEqual(["deadline"]);
+  });
+
+  test("project_event_kind chip narrows project_event predicate", () => {
+    const state: BarState = { project_event_kind: ["deadline_created"] };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.predicates?.project_event?.event_types).toEqual(["deadline_created"]);
+  });
+
+  test("time chip overrides base horizon", () => {
+    const state: BarState = { time: { horizon: "past_7d" } };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.time.horizon).toBe("past_7d");
+    expect(eff.filter.time.field).toBe("auto"); // preserved from base
+  });
+
+  test("personal_only chip flips scope flag", () => {
+    const state: BarState = { personal_only: true };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.scope.personal_only).toBe(true);
+  });
+
+  test("multiple chips combine into the same effective spec", () => {
+    const state: BarState = {
+      time: { horizon: "past_7d" },
+      deadline_status: ["pending"],
+      appointment_type: ["hearing"],
+      approval_status: ["pending"],
+      project_event_kind: ["deadline_created"],
+    };
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, state);
+    expect(eff.filter.time.horizon).toBe("past_7d");
+    expect(eff.filter.predicates?.deadline?.status).toEqual(["pending"]);
+    expect(eff.filter.predicates?.appointment?.appointment_types).toEqual(["hearing"]);
+    expect(eff.filter.predicates?.approval_request?.status).toEqual(["pending"]);
+    expect(eff.filter.predicates?.project_event?.event_types).toEqual(["deadline_created"]);
+  });
+
+  test("overlay does not mutate the caller's base filter", () => {
+    const base: FilterSpec = JSON.parse(JSON.stringify(ANY_VIEW_FILTER));
+    const state: BarState = { deadline_status: ["pending"], time: { horizon: "past_7d" } };
+    computeEffective(base, ANY_VIEW_RENDER, state);
+    // The bar deep-clones; the base must come back unchanged so a
+    // second click doesn't compound the previous click's overlay.
+    expect(base).toEqual(ANY_VIEW_FILTER);
+  });
+
+  test("inbox-only axes do not affect a /views/any spec (no inbox axis exposed)", () => {
+    // /views/any's axes don't include unread_only or inbox_focus, so
+    // those keys never appear in state. Verify that even if they did,
+    // the bar's overlay doesn't silently mutate sources or predicates
+    // in a way that would break a 4-source Custom View.
+    const eff = computeEffective(ANY_VIEW_FILTER, ANY_VIEW_RENDER, {});
+    expect(eff.filter.sources).toHaveLength(4);
+    expect(eff.filter.unread_only ?? false).toBe(false);
+  });
+});

frontend/src/client/fristenrechner.ts

@@ -24,6 +24,12 @@ import {
   renderTimelineBody,
   wireDateEditClicks,
 } from "./views/verfahrensablauf-core";
+import {
+  attachEventCardChoices,
+  reseedChips,
+  type EventChoice,
+  type ChoiceKind,
+} from "./views/event-card-choices";
 
 let lastResponse: DeadlineResponse | null = null;
 
@@ -162,6 +168,13 @@ async function calculate() {
     ? courtPicker.value
     : "";
 
+  // t-paliad-265 — when project-bound, the server pulls per-card
+  // choices from paliad.project_event_choices. The frontend has
+  // already pre-fetched them into perCardChoicesCache so chip
+  // indicators repaint in step with the calc; sending projectId here
+  // is the persistence path.
+  const projectIdForCalc = currentStep1Context.kind === "project" ? currentStep1Context.projectId : "";
+
   const data = await calculateDeadlines({
     proceedingType: selectedType,
     triggerDate,
@@ -169,6 +182,7 @@ async function calculate() {
     flags,
     anchorOverrides: overrides,
     courtId,
+    projectId: projectIdForCalc || undefined,
   });
   if (seq !== procCalcSeq) return;
   if (!data) return;
@@ -439,6 +453,10 @@ function renderProcedureResults(data: DeadlineResponse) {
     : renderTimelineBody(data, { showParty: true, editable: true, showNotes });
 
   container.innerHTML = headerHtml + bodyHtml;
+  // t-paliad-265: rehydrate per-event-card chip indicators after the
+  // innerHTML rewrite. Safe to call before attachEventCardChoices() —
+  // it no-ops when no state was attached yet.
+  reseedChips(container);
   printBtn.style.display = "block";
   if (saveBtn) {
     // Ad-hoc explore-mode has no project to save against — show the
@@ -461,6 +479,49 @@ function renderProcedureResults(data: DeadlineResponse) {
   applyPendingFocus();
 }
 
+// initEventCardChoicesForFristenrechner attaches the per-event-card
+// popover to the timeline container. The fristenrechner page is the
+// project-bound surface: commits POST/DELETE to the persistence
+// endpoint; the next calculate() pulls the fresh state from the
+// server. (t-paliad-265)
+async function initEventCardChoicesForFristenrechner(container: HTMLElement): Promise<void> {
+  // Load the current persisted state for the project context, if any.
+  const initial: EventChoice[] = [];
+  if (currentStep1Context.kind === "project" && currentStep1Context.projectId) {
+    try {
+      const resp = await fetch(`/api/projects/${encodeURIComponent(currentStep1Context.projectId)}/event-choices`);
+      if (resp.ok) {
+        const rows = (await resp.json()) as EventChoice[];
+        for (const r of rows) initial.push(r);
+      }
+    } catch (e) {
+      console.error("event-choices: initial load failed", e);
+    }
+  }
+
+  attachEventCardChoices({
+    container,
+    initial,
+    commit: async (choice) => {
+      if (currentStep1Context.kind !== "project" || !currentStep1Context.projectId) return;
+      const resp = await fetch(`/api/projects/${encodeURIComponent(currentStep1Context.projectId)}/event-choices`, {
+        method: "PUT",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(choice),
+      });
+      if (!resp.ok) throw new Error(`event-choices PUT ${resp.status}`);
+      scheduleProcCalc(0);
+    },
+    remove: async (submissionCode, kind) => {
+      if (currentStep1Context.kind !== "project" || !currentStep1Context.projectId) return;
+      const url = `/api/projects/${encodeURIComponent(currentStep1Context.projectId)}/event-choices/${encodeURIComponent(submissionCode)}/${encodeURIComponent(kind)}`;
+      const resp = await fetch(url, { method: "DELETE" });
+      if (!resp.ok && resp.status !== 404) throw new Error(`event-choices DELETE ${resp.status}`);
+      scheduleProcCalc(0);
+    },
+  });
+}
+
 // onDateEditCommit is the click-to-edit callback handed to the shared
 // wireDateEditClicks() helper: persist the per-rule override (empty value
 // clears it) then recompute so downstream rules re-anchor.
@@ -648,6 +709,15 @@ document.addEventListener("DOMContentLoaded", () => {
   const timelineContainer = document.getElementById("timeline-container");
   if (timelineContainer) wireDateEditClicks(timelineContainer, onDateEditCommit);
 
+  // t-paliad-265 — per-event-card choices. Project-bound surface, so
+  // commits POST to /api/projects/{id}/event-choices. The popover
+  // module owns the popover; this page owns the recalc trigger. When
+  // there's no project context yet (Step 1 not picked), the popover
+  // still works but commits silently no-op (project_id missing).
+  if (timelineContainer) {
+    void initEventCardChoicesForFristenrechner(timelineContainer);
+  }
+
   // Reset button
   document.getElementById("reset-btn")!.addEventListener("click", reset);
 

frontend/src/client/i18n.ts

@@ -207,6 +207,7 @@ const translations: Record<Lang, Record<string, string>> = {
 
     "deadlines.step1": "Verfahrensart w\u00e4hlen",
     "deadlines.step2": "Ausgangsdatum eingeben",
+    "deadlines.step2.perspective": "Perspektive und Datum",
     "deadlines.step3": "Ergebnis",
     "deadlines.upc": "UPC",
     "deadlines.de": "Deutsche Gerichte",
@@ -236,6 +237,13 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.upc.disc.cfi": "Bucheinsicht",
     "deadlines.upc.apl.cost": "Berufung Kosten",
     "deadlines.upc.apl.order": "Berufung Anordnungen",
+    "deadlines.upc.apl.unified": "Berufung",
+    "deadlines.appeal_target.label": "Worauf richtet sich die Berufung?",
+    "deadlines.appeal_target.endentscheidung": "Endentscheidung",
+    "deadlines.appeal_target.kostenentscheidung": "Kostenentscheidung",
+    "deadlines.appeal_target.anordnung": "Anordnung",
+    "deadlines.appeal_target.schadensbemessung": "Schadensbemessung",
+    "deadlines.appeal_target.bucheinsicht": "Bucheinsicht",
     "deadlines.de.group.inf": "Verletzungsverfahren",
     "deadlines.de.group.null": "Nichtigkeitsverfahren",
     "deadlines.de.inf.lg": "LG (1. Instanz)",
@@ -253,6 +261,8 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.party.both.label": "beide Seiten",
     "deadlines.court.set": "vom Gericht bestimmt",
     "deadlines.court.indirect": "unbestimmt",
+    "deadlines.conditional.depends_on": "abhängig von {parent}",
+    "deadlines.conditional.unset": "abhängig von vorgelagertem Ereignis",
     "deadlines.optional.badge": "auf Antrag",
     "deadlines.priority.mandatory": "Pflicht",
     "deadlines.priority.recommended": "empfohlen",
@@ -302,10 +312,39 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.view.timeline": "Zeitstrahl",
     "deadlines.view.columns": "Spalten",
     "deadlines.notes.show": "Hinweise anzeigen",
+    "deadlines.durations.show": "Dauern anzeigen",
     "deadlines.col.ours": "Unsere Seite",
     "deadlines.col.court": "Gericht",
     "deadlines.col.opponent": "Gegnerseite",
     "deadlines.col.both": "Beide Parteien",
+    "deadlines.col.proactive": "Proaktiv",
+    "deadlines.col.reactive": "Reaktiv",
+    // t-paliad-265 — per-event-card choice popover (Verfahrensablauf timeline)
+    "choices.caret.title": "Optionen für dieses Ereignis",
+    "choices.appellant.title": "Berufung durch …",
+    "choices.appellant.claimant": "Klägerseite",
+    "choices.appellant.defendant": "Beklagtenseite",
+    "choices.appellant.both": "beide Parteien",
+    "choices.appellant.none": "keine Berufung",
+    "choices.include_ccr.title": "Nichtigkeitswiderklage einbeziehen",
+    "choices.include_ccr.true": "Ja",
+    "choices.include_ccr.false": "Nein",
+    "choices.skip.title": "Für diese Akte überspringen",
+    "choices.skip.true": "Überspringen",
+    "choices.skip.false": "Einbeziehen",
+    "choices.skipped.chip": "übersprungen",
+    "choices.appellant.chip": "Berufung:",
+    "choices.include_ccr.chip": "mit Nichtigkeitswiderklage",
+    "choices.reset": "Auswahl zurücksetzen",
+    "choices.commit.error": "Konnte Auswahl nicht speichern",
+    // t-paliad-290 (m/paliad#122) — re-surface hidden optional cards.
+    "choices.show_hidden.label": "Ausgeblendete anzeigen",
+    "choices.show_hidden.count": "Ausgeblendete ({n})",
+    "choices.unhide.chip": "Wieder einblenden",
+    // t-paliad-293 \u2014 iconified state markers on the Verfahrensablauf
+    // event cards. Tooltip-only text; the glyph is the primary signal.
+    "state.optional.tooltip": "Optionales Ereignis",
+    "state.hidden.tooltip": "Ausgeblendet \u2014 \u00fcber Optionen-Men\u00fc wieder einblenden",
     // Trigger-event mode (PR-2 \u2014 youpc-parity)
     "deadlines.mode.procedure": "Verfahrensablauf",
     "deadlines.mode.event": "Was kommt nach\u2026",
@@ -420,11 +459,10 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.side.label": "Seite:",
     "deadlines.side.claimant": "Klägerseite",
     "deadlines.side.defendant": "Beklagtenseite",
-    "deadlines.side.both": "Beide",
-    "deadlines.appellant.label": "Berufung durch:",
-    "deadlines.appellant.claimant": "Klägerseite",
-    "deadlines.appellant.defendant": "Beklagtenseite",
-    "deadlines.appellant.none": "—",
+    "deadlines.side.undefined": "Nicht festgelegt",
+    "deadlines.side.from_project": "Aus Akte:",
+    "deadlines.side.override": "Andere Seite wählen",
+    "deadlines.side.hint": "Wählen Sie eine Seite, um die Spalten zu fokussieren.",
     "deadlines.event.composite.label": "Zusammengesetzt:",
     "deadlines.event.unit.days.one": "Tag",
     "deadlines.event.unit.days.many": "Tage",
@@ -1117,6 +1155,10 @@ const translations: Record<Lang, Record<string, string>> = {
     "event.title.appointment_updated": "Termin ge\u00e4ndert",
     "event.title.appointment_deleted": "Termin gel\u00f6scht",
     "event.title.appointment_project_changed": "Termin verschoben",
+    // Umbrella audit kind + admin churn surfaced by the FilterBar
+    // project_event_kind chip cluster (KnownProjectEventKinds).
+    "event.title.approval_decided": "Genehmigung entschieden",
+    "event.title.member_role_changed": "Teamrolle ge\u00e4ndert",
     // 4-eye approval lifecycle (t-paliad-138). Verlauf renders these as
     // a paired card with the original lifecycle event (e.g.
     // "Frist angelegt" + "Genehmigung erteilt von Bert").
@@ -1469,6 +1511,15 @@ const translations: Record<Lang, Record<string, string>> = {
     "submissions.draft.name.placeholder": "Name dieses Entwurfs",
     "submissions.draft.preview.title": "Vorschau",
     "submissions.draft.preview.hint": "Read-only Vorschau — finale Bearbeitung in Word.",
+    // t-paliad-277 — import-from-project + party-picker.
+    "submissions.draft.import.button": "Aus Projekt importieren",
+    "submissions.draft.parties.title": "Parteien",
+    "submissions.draft.parties.hint": "Wählen Sie die im Schriftsatz genannten Parteien oder fügen Sie pro Seite weitere hinzu.",
+    // t-paliad-276 — DE/EN language toggle on the draft editor.
+    "submissions.draft.language": "Sprache",
+    "submissions.draft.language.de": "DE",
+    "submissions.draft.language.en": "EN",
+    "submissions.draft.language.fallback_notice": "Fallback: universelles Skelett (keine sprachspezifische Vorlage).",
     // t-paliad-240 — global Schriftsätze drafts index page.
     "submissions.index.title": "Schriftsätze — Paliad",
     "submissions.index.heading": "Schriftsätze",
@@ -2841,21 +2892,24 @@ const translations: Record<Lang, Record<string, string>> = {
     "views.bar.save.error.network": "Netzwerkfehler — bitte erneut versuchen.",
 
     // t-paliad-192 Slice 11b — Admin rule-editor UI.
-    "nav.admin.rules": "Regeln verwalten",
-    "nav.admin.rules_export": "Regel-Migrations",
-    "admin.card.rules.title": "Regeln verwalten",
-    "admin.card.rules.desc": "Fristen-Regeln anlegen, bearbeiten, publishen. Audit-Log, Preview, Migration-Export.",
+    // t-paliad-262 Slice A — "Regel" relabelled as "Verfahrensschritt".
+    // The admin URL `/admin/rules` and i18n key prefix `admin.rules.*` stay
+    // (URL change is Slice B.6); the visible labels rename. Canonical
+    // `admin.procedural_events.*` aliases live after the EN block — they
+    // pin the contract for when .tsx files rebind in Slice B (B.5).
+    "nav.admin.rules": "Verfahrensschritte verwalten",
+    "admin.card.rules.title": "Verfahrensschritte verwalten",
+    "admin.card.rules.desc": "Verfahrensschritte anlegen, bearbeiten, publishen. Audit-Log, Preview, Migration-Export.",
 
-    "admin.rules.list.title": "Regeln verwalten — Paliad",
-    "admin.rules.list.heading": "Regeln verwalten",
-    "admin.rules.list.subtitle": "Fristen-Regeln anlegen, bearbeiten und freigeben. Lifecycle: draft → published → archived.",
-    "admin.rules.list.new": "+ Neue Regel",
-    "admin.rules.list.export": "Migrations exportieren",
+    "admin.rules.list.title": "Verfahrensschritte verwalten — Paliad",
+    "admin.rules.list.heading": "Verfahrensschritte verwalten",
+    "admin.rules.list.subtitle": "Verfahrensschritte (Schriftsätze, Anhörungen, Entscheidungen, …) anlegen, bearbeiten und freigeben. Lifecycle: draft → published → archived.",
+    "admin.rules.list.new": "+ Neuer Verfahrensschritt",
     "admin.rules.tab.rules": "Regeln",
     "admin.rules.tab.orphans": "Orphans",
     "admin.rules.loading": "Lade…",
-    "admin.rules.empty": "Keine Regeln für die gewählten Filter.",
-    "admin.rules.error.load": "Konnte Regeln nicht laden.",
+    "admin.rules.empty": "Keine Verfahrensschritte für die gewählten Filter.",
+    "admin.rules.error.load": "Konnte Verfahrensschritte nicht laden.",
 
     "admin.rules.filter.proceeding": "Verfahrenstyp",
     "admin.rules.filter.proceeding.any": "Alle",
@@ -2866,7 +2920,7 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.filter.search": "Suche",
     "admin.rules.filter.search.placeholder": "Name, Submission Code, Rechtsgrundlage…",
 
-    "admin.rules.col.submission_code": "Submission Code / Einreichung-Kennung",
+    "admin.rules.col.submission_code": "Code (Verfahrensschritt)",
     "admin.rules.col.legal_citation": "Rechtsgrundlage",
     "admin.rules.col.name": "Name",
     "admin.rules.col.proceeding": "Verfahrenstyp",
@@ -2896,8 +2950,8 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.orphans.reason.manual_unbound": "Manuell entkoppelt",
     "admin.rules.orphans.resolved": "Orphan zugeordnet.",
 
-    "admin.rules.modal.new.title": "Neue Regel anlegen",
-    "admin.rules.modal.new.body": "Eine neue Regel wird als Draft angelegt. Bitte einen Grund (mind. 10 Zeichen) angeben — dieser wandert ins Audit-Log und beim Export in die Migration.",
+    "admin.rules.modal.new.title": "Neuen Verfahrensschritt anlegen",
+    "admin.rules.modal.new.body": "Ein neuer Verfahrensschritt wird als Draft angelegt. Bitte einen Grund (mind. 10 Zeichen) angeben — dieser wandert ins Audit-Log und beim Export in die Migration.",
     "admin.rules.modal.resolve.title": "Orphan zuordnen",
     "admin.rules.modal.resolve.body": "Bitte einen Grund (mind. 10 Zeichen) angeben. Die Regel-Verknüpfung wird sofort auf der Deadline gespeichert.",
     "admin.rules.modal.reason": "Grund",
@@ -2912,12 +2966,12 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.modal.error.create": "Anlegen fehlgeschlagen.",
     "admin.rules.modal.error.resolve": "Zuordnung fehlgeschlagen.",
 
-    "admin.rules.edit.title": "Regel bearbeiten — Paliad",
-    "admin.rules.edit.heading.loading": "Regel laden…",
-    "admin.rules.edit.breadcrumb": "← Regeln verwalten",
-    "admin.rules.edit.error.bad_id": "Ungültige Regel-ID in der URL.",
-    "admin.rules.edit.error.not_found": "Regel nicht gefunden.",
-    "admin.rules.edit.error.load": "Konnte Regel nicht laden.",
+    "admin.rules.edit.title": "Verfahrensschritt bearbeiten — Paliad",
+    "admin.rules.edit.heading.loading": "Verfahrensschritt laden…",
+    "admin.rules.edit.breadcrumb": "← Verfahrensschritte verwalten",
+    "admin.rules.edit.error.bad_id": "Ungültige Verfahrensschritt-ID in der URL.",
+    "admin.rules.edit.error.not_found": "Verfahrensschritt nicht gefunden.",
+    "admin.rules.edit.error.load": "Konnte Verfahrensschritt nicht laden.",
 
     "admin.rules.edit.section.identity": "Identität",
     "admin.rules.edit.section.proceeding": "Verfahren & Trigger",
@@ -2930,14 +2984,14 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.edit.field.name": "Name (DE)",
     "admin.rules.edit.field.name_en": "Name (EN)",
     "admin.rules.edit.field.description": "Beschreibung",
-    "admin.rules.edit.field.submission_code": "Submission Code / Einreichung-Kennung",
+    "admin.rules.edit.field.submission_code": "Code (Verfahrensschritt-Identifikator)",
     "admin.rules.edit.field.rule_code": "Rechtsgrundlage (Kurzform)",
     "admin.rules.edit.field.legal_source": "Rechtsgrundlage (Langform)",
     "admin.rules.edit.field.proceeding": "Verfahrenstyp",
     "admin.rules.edit.field.proceeding.none": "—",
     "admin.rules.edit.field.trigger": "Trigger-Ereignis",
     "admin.rules.edit.field.trigger.none": "—",
-    "admin.rules.edit.field.parent": "Parent-Regel (UUID)",
+    "admin.rules.edit.field.parent": "Übergeordneter Verfahrensschritt (UUID)",
     "admin.rules.edit.field.concept": "Konzept (UUID)",
     "admin.rules.edit.field.sequence_order": "Reihenfolge",
     "admin.rules.edit.field.duration_value": "Dauer",
@@ -2949,7 +3003,7 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.edit.field.alt_rule_code": "Alt-Rule-Code",
     "admin.rules.edit.field.anchor_alt": "Alt-Anchor",
     "admin.rules.edit.field.primary_party": "Primäre Partei",
-    "admin.rules.edit.field.event_type": "Event-Typ (frei)",
+    "admin.rules.edit.field.event_type": "Art des Verfahrensschritts (filing / hearing / decision / order)",
     "admin.rules.edit.field.deadline_notes": "Hinweise (DE)",
     "admin.rules.edit.field.deadline_notes_en": "Hinweise (EN)",
     "admin.rules.edit.field.priority": "Priorität",
@@ -3012,30 +3066,13 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.edit.modal.restore.title": "Wiederherstellen",
     "admin.rules.edit.modal.restore.body": "Regel wird wiederhergestellt (archived → published).",
 
-    "admin.rules.export.title": "Regel-Migrations exportieren — Paliad",
-    "admin.rules.export.heading": "Regel-Migrations exportieren",
-    "admin.rules.export.subtitle": "Generiert ein *.up.sql-Blob mit allen unsynchronisierten Audit-Veränderungen. Manuell in internal/db/migrations/ einchecken.",
-    "admin.rules.export.breadcrumb": "← Regeln verwalten",
-    "admin.rules.export.field.since": "Startend ab Audit-ID (optional)",
-    "admin.rules.export.run": "Export generieren",
-    "admin.rules.export.running": "Lade…",
-    "admin.rules.export.download": "Als Datei herunterladen",
-    "admin.rules.export.copy": "In Zwischenablage kopieren",
-    "admin.rules.export.copied": "In Zwischenablage kopiert.",
-    "admin.rules.export.copy_failed": "Kopieren fehlgeschlagen.",
-    "admin.rules.export.count": "Audit-Zeilen: {n}",
-    "admin.rules.export.latest": "Letzte Audit-ID: {id}",
-    "admin.rules.export.ok": "{n} Audit-Zeilen exportiert.",
-    "admin.rules.export.error": "Export fehlgeschlagen.",
-    "admin.rules.export.no_pending": "Keine offenen Audit-Zeilen zum Export.",
-
     // Date-range picker (t-paliad-248). Symmetric past/future chip fan
     // around an ALLES centre. Used by the filter-bar 'time' axis from
     // Slice A onwards; future slices will migrate /agenda and
     // /admin/audit-log to the same component.
     "date_range.button.label": "Zeitraum",
     "date_range.button.label.custom_range": "Von {from} bis {to}",
-    "date_range.horizon.next_1d":  "Morgen",
+    "date_range.horizon.next_1d":  "Heute",
     "date_range.horizon.next_7d":  "Nächste 7 Tage",
     "date_range.horizon.next_14d": "Nächste 14 Tage",
     "date_range.horizon.next_30d": "Nächste 30 Tage",
@@ -3060,6 +3097,21 @@ const translations: Record<Lang, Record<string, string>> = {
     "date_range.custom.invalid":            "Bis-Datum muss nach Von-Datum liegen.",
     "date_range.custom.invalid_format":     "Datum nicht erkannt (Format JJJJ-MM-TT).",
     "date_range.custom.invalid_missing":    "Bitte beide Datumsfelder ausfüllen.",
+
+    // t-paliad-262 Slice A — canonical `procedural_event` i18n contract.
+    // The values are identical to the legacy `admin.rules.*` keys above —
+    // these aliases let .tsx files rebind in Slice B (B.5) without
+    // touching DE/EN strings then. Adding/changing values? Update BOTH
+    // sides.
+    "admin.procedural_events.list.title":     "Verfahrensschritte verwalten — Paliad",
+    "admin.procedural_events.list.heading":   "Verfahrensschritte verwalten",
+    "admin.procedural_events.list.new":       "+ Neuer Verfahrensschritt",
+    "admin.procedural_events.col.code":       "Code (Verfahrensschritt)",
+    "admin.procedural_events.edit.title":     "Verfahrensschritt bearbeiten — Paliad",
+    "admin.procedural_events.edit.breadcrumb":"← Verfahrensschritte verwalten",
+    "admin.procedural_events.edit.field.code":         "Code (Verfahrensschritt-Identifikator)",
+    "admin.procedural_events.edit.field.event_kind":   "Art des Verfahrensschritts (filing / hearing / decision / order)",
+    "admin.procedural_events.edit.field.parent":       "Übergeordneter Verfahrensschritt (UUID)",
   },
 
   en: {
@@ -3250,6 +3302,7 @@ const translations: Record<Lang, Record<string, string>> = {
 
     "deadlines.step1": "Select Proceeding Type",
     "deadlines.step2": "Enter Trigger Date",
+    "deadlines.step2.perspective": "Perspective and Date",
     "deadlines.step3": "Result",
     "deadlines.upc": "UPC",
     "deadlines.de": "German Courts",
@@ -3278,6 +3331,13 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.upc.dmgs.cfi": "Damages Determination",
     "deadlines.upc.disc.cfi": "Lay-open Books",
     "deadlines.upc.apl.cost": "Cost-Decision Appeal",
+    "deadlines.upc.apl.unified": "Appeal",
+    "deadlines.appeal_target.label": "Appeal against:",
+    "deadlines.appeal_target.endentscheidung": "Final Decision",
+    "deadlines.appeal_target.kostenentscheidung": "Cost Decision",
+    "deadlines.appeal_target.anordnung": "Order",
+    "deadlines.appeal_target.schadensbemessung": "Damages Determination",
+    "deadlines.appeal_target.bucheinsicht": "Lay-open Books",
     "deadlines.upc.apl.order": "Order Appeal (15-day)",
     "deadlines.de.group.inf": "Infringement proceedings",
     "deadlines.de.group.null": "Nullity proceedings",
@@ -3296,6 +3356,8 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.party.both.label": "both parties",
     "deadlines.court.set": "set by court",
     "deadlines.court.indirect": "tbd",
+    "deadlines.conditional.depends_on": "depends on {parent}",
+    "deadlines.conditional.unset": "depends on an upstream event",
     "deadlines.optional.badge": "on request",
     "deadlines.priority.mandatory": "Mandatory",
     "deadlines.priority.recommended": "Recommended",
@@ -3345,10 +3407,39 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.view.timeline": "Timeline",
     "deadlines.view.columns": "Columns",
     "deadlines.notes.show": "Show details",
+    "deadlines.durations.show": "Show durations",
     "deadlines.col.ours": "Client Side",
     "deadlines.col.court": "Court",
     "deadlines.col.opponent": "Opponent Side",
     "deadlines.col.both": "Both parties",
+    "deadlines.col.proactive": "Proactive",
+    "deadlines.col.reactive": "Reactive",
+    // t-paliad-265 — per-event-card choice popover (Verfahrensablauf timeline)
+    "choices.caret.title": "Options for this event",
+    "choices.appellant.title": "Appeal by …",
+    "choices.appellant.claimant": "Claimant side",
+    "choices.appellant.defendant": "Defendant side",
+    "choices.appellant.both": "both parties",
+    "choices.appellant.none": "no appeal",
+    "choices.include_ccr.title": "Include nullity counterclaim",
+    "choices.include_ccr.true": "Yes",
+    "choices.include_ccr.false": "No",
+    "choices.skip.title": "Skip for this case",
+    "choices.skip.true": "Skip",
+    "choices.skip.false": "Include",
+    "choices.skipped.chip": "skipped",
+    "choices.appellant.chip": "Appeal:",
+    "choices.include_ccr.chip": "with nullity counterclaim",
+    "choices.reset": "Reset choice",
+    "choices.commit.error": "Could not save selection",
+    // t-paliad-290 (m/paliad#122) — re-surface hidden optional cards.
+    "choices.show_hidden.label": "Show hidden",
+    "choices.show_hidden.count": "Hidden ({n})",
+    "choices.unhide.chip": "Show again",
+    // t-paliad-293 — iconified state markers on the Verfahrensablauf
+    // event cards. Tooltip-only text; the glyph is the primary signal.
+    "state.optional.tooltip": "Optional event",
+    "state.hidden.tooltip": "Hidden — restore via the options menu",
     "deadlines.adjusted": "Adjusted",
     "deadlines.adjusted.reason": "weekend/holiday",
     "deadlines.adjusted.weekend": "weekend",
@@ -3470,11 +3561,10 @@ const translations: Record<Lang, Record<string, string>> = {
     "deadlines.side.label": "Side:",
     "deadlines.side.claimant": "Claimant",
     "deadlines.side.defendant": "Defendant",
-    "deadlines.side.both": "Both",
-    "deadlines.appellant.label": "Appeal filed by:",
-    "deadlines.appellant.claimant": "Claimant",
-    "deadlines.appellant.defendant": "Defendant",
-    "deadlines.appellant.none": "—",
+    "deadlines.side.undefined": "Undefined",
+    "deadlines.side.from_project": "From case:",
+    "deadlines.side.override": "Choose other side",
+    "deadlines.side.hint": "Pick a side to focus the columns.",
     "deadlines.event.composite.label": "Composite:",
     "deadlines.event.unit.days.one": "day",
     "deadlines.event.unit.days.many": "days",
@@ -4143,6 +4233,10 @@ const translations: Record<Lang, Record<string, string>> = {
     "event.title.appointment_updated": "Appointment updated",
     "event.title.appointment_deleted": "Appointment deleted",
     "event.title.appointment_project_changed": "Appointment moved",
+    // Umbrella audit kind + admin churn surfaced by the FilterBar
+    // project_event_kind chip cluster (KnownProjectEventKinds).
+    "event.title.approval_decided": "Approval decided",
+    "event.title.member_role_changed": "Team role changed",
     // 4-eye approval lifecycle (t-paliad-138).
     "event.title.deadline_approval_requested": "Approval requested",
     "event.title.deadline_approval_approved": "Approval granted",
@@ -4492,7 +4586,16 @@ const translations: Record<Lang, Record<string, string>> = {
     "submissions.draft.switcher.label": "Draft",
     "submissions.draft.name.placeholder": "Name of this draft",
     "submissions.draft.preview.title": "Preview",
+    // t-paliad-276 — DE/EN language toggle on the draft editor.
+    "submissions.draft.language": "Language",
+    "submissions.draft.language.de": "DE",
+    "submissions.draft.language.en": "EN",
+    "submissions.draft.language.fallback_notice": "Fallback: universal skeleton (no language-matched template).",
     "submissions.draft.preview.hint": "Read-only preview — final formatting in Word.",
+    // t-paliad-277 — import-from-project + party-picker.
+    "submissions.draft.import.button": "Import from project",
+    "submissions.draft.parties.title": "Parties",
+    "submissions.draft.parties.hint": "Pick the parties mentioned in this submission, or add more per side.",
     // t-paliad-240 — global submissions drafts index page.
     "submissions.index.title": "Submissions — Paliad",
     "submissions.index.heading": "Submissions",
@@ -5854,21 +5957,20 @@ const translations: Record<Lang, Record<string, string>> = {
     "views.bar.save.error.network": "Network error — please retry.",
 
     // t-paliad-192 Slice 11b — Admin rule-editor UI.
-    "nav.admin.rules": "Manage Rules",
-    "nav.admin.rules_export": "Rule Migrations",
-    "admin.card.rules.title": "Manage Rules",
-    "admin.card.rules.desc": "Author, edit and publish deadline rules. Audit log, preview, migration export.",
+    // t-paliad-262 Slice A — "Rule" relabelled as "Procedural event".
+    "nav.admin.rules": "Manage procedural events",
+    "admin.card.rules.title": "Manage procedural events",
+    "admin.card.rules.desc": "Author, edit and publish procedural-event templates. Audit log, preview, migration export.",
 
-    "admin.rules.list.title": "Manage Rules — Paliad",
-    "admin.rules.list.heading": "Manage Rules",
-    "admin.rules.list.subtitle": "Author, edit and publish deadline rules. Lifecycle: draft → published → archived.",
-    "admin.rules.list.new": "+ New Rule",
-    "admin.rules.list.export": "Export migrations",
+    "admin.rules.list.title": "Manage procedural events — Paliad",
+    "admin.rules.list.heading": "Manage procedural events",
+    "admin.rules.list.subtitle": "Author, edit and publish procedural events (filings, hearings, decisions, …). Lifecycle: draft → published → archived.",
+    "admin.rules.list.new": "+ New procedural event",
     "admin.rules.tab.rules": "Rules",
     "admin.rules.tab.orphans": "Orphans",
     "admin.rules.loading": "Loading…",
-    "admin.rules.empty": "No rules for the chosen filters.",
-    "admin.rules.error.load": "Could not load rules.",
+    "admin.rules.empty": "No procedural events for the chosen filters.",
+    "admin.rules.error.load": "Could not load procedural events.",
 
     "admin.rules.filter.proceeding": "Proceeding type",
     "admin.rules.filter.proceeding.any": "Any",
@@ -5879,7 +5981,7 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.filter.search": "Search",
     "admin.rules.filter.search.placeholder": "Name, submission code, legal citation…",
 
-    "admin.rules.col.submission_code": "Submission code",
+    "admin.rules.col.submission_code": "Code (procedural event)",
     "admin.rules.col.legal_citation": "Legal citation",
     "admin.rules.col.name": "Name",
     "admin.rules.col.proceeding": "Proceeding type",
@@ -5909,8 +6011,8 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.orphans.reason.manual_unbound": "Manually unbound",
     "admin.rules.orphans.resolved": "Orphan resolved.",
 
-    "admin.rules.modal.new.title": "Create new rule",
-    "admin.rules.modal.new.body": "A new rule will be created as a draft. Please supply a reason (≥10 chars) — recorded in the audit log and exported into the migration file.",
+    "admin.rules.modal.new.title": "Create new procedural event",
+    "admin.rules.modal.new.body": "A new procedural event will be created as a draft. Please supply a reason (≥10 chars) — recorded in the audit log and exported into the migration file.",
     "admin.rules.modal.resolve.title": "Resolve orphan",
     "admin.rules.modal.resolve.body": "Please supply a reason (≥10 chars). The rule binding is persisted immediately on the deadline.",
     "admin.rules.modal.reason": "Reason",
@@ -5925,12 +6027,12 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.modal.error.create": "Creation failed.",
     "admin.rules.modal.error.resolve": "Resolution failed.",
 
-    "admin.rules.edit.title": "Edit Rule — Paliad",
-    "admin.rules.edit.heading.loading": "Loading rule…",
-    "admin.rules.edit.breadcrumb": "← Manage Rules",
-    "admin.rules.edit.error.bad_id": "Invalid rule id in URL.",
-    "admin.rules.edit.error.not_found": "Rule not found.",
-    "admin.rules.edit.error.load": "Could not load rule.",
+    "admin.rules.edit.title": "Edit procedural event — Paliad",
+    "admin.rules.edit.heading.loading": "Loading procedural event…",
+    "admin.rules.edit.breadcrumb": "← Manage procedural events",
+    "admin.rules.edit.error.bad_id": "Invalid procedural-event id in URL.",
+    "admin.rules.edit.error.not_found": "Procedural event not found.",
+    "admin.rules.edit.error.load": "Could not load procedural event.",
 
     "admin.rules.edit.section.identity": "Identity",
     "admin.rules.edit.section.proceeding": "Proceeding & Trigger",
@@ -5943,14 +6045,14 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.edit.field.name": "Name (DE)",
     "admin.rules.edit.field.name_en": "Name (EN)",
     "admin.rules.edit.field.description": "Description",
-    "admin.rules.edit.field.submission_code": "Submission code",
+    "admin.rules.edit.field.submission_code": "Code (procedural-event identifier)",
     "admin.rules.edit.field.rule_code": "Legal citation (short form)",
     "admin.rules.edit.field.legal_source": "Legal citation (long form)",
     "admin.rules.edit.field.proceeding": "Proceeding type",
     "admin.rules.edit.field.proceeding.none": "—",
     "admin.rules.edit.field.trigger": "Trigger event",
     "admin.rules.edit.field.trigger.none": "—",
-    "admin.rules.edit.field.parent": "Parent rule (UUID)",
+    "admin.rules.edit.field.parent": "Parent procedural event (UUID)",
     "admin.rules.edit.field.concept": "Concept (UUID)",
     "admin.rules.edit.field.sequence_order": "Order",
     "admin.rules.edit.field.duration_value": "Duration",
@@ -5962,7 +6064,7 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.edit.field.alt_rule_code": "Alt rule code",
     "admin.rules.edit.field.anchor_alt": "Alt anchor",
     "admin.rules.edit.field.primary_party": "Primary party",
-    "admin.rules.edit.field.event_type": "Event type (free)",
+    "admin.rules.edit.field.event_type": "Procedural-event kind (filing / hearing / decision / order)",
     "admin.rules.edit.field.deadline_notes": "Notes (DE)",
     "admin.rules.edit.field.deadline_notes_en": "Notes (EN)",
     "admin.rules.edit.field.priority": "Priority",
@@ -6025,27 +6127,10 @@ const translations: Record<Lang, Record<string, string>> = {
     "admin.rules.edit.modal.restore.title": "Restore",
     "admin.rules.edit.modal.restore.body": "Rule will be restored (archived → published).",
 
-    "admin.rules.export.title": "Export rule migrations — Paliad",
-    "admin.rules.export.heading": "Export rule migrations",
-    "admin.rules.export.subtitle": "Generates a *.up.sql blob with every un-exported audit change. Commit manually into internal/db/migrations/.",
-    "admin.rules.export.breadcrumb": "← Manage Rules",
-    "admin.rules.export.field.since": "Starting from audit id (optional)",
-    "admin.rules.export.run": "Generate export",
-    "admin.rules.export.running": "Loading…",
-    "admin.rules.export.download": "Download as file",
-    "admin.rules.export.copy": "Copy to clipboard",
-    "admin.rules.export.copied": "Copied to clipboard.",
-    "admin.rules.export.copy_failed": "Copy failed.",
-    "admin.rules.export.count": "Audit rows: {n}",
-    "admin.rules.export.latest": "Latest audit id: {id}",
-    "admin.rules.export.ok": "{n} audit rows exported.",
-    "admin.rules.export.error": "Export failed.",
-    "admin.rules.export.no_pending": "No pending audit rows to export.",
-
     // Date-range picker (t-paliad-248). See DE block above for details.
     "date_range.button.label": "Time range",
     "date_range.button.label.custom_range": "From {from} to {to}",
-    "date_range.horizon.next_1d":  "Tomorrow",
+    "date_range.horizon.next_1d":  "Today",
     "date_range.horizon.next_7d":  "Next 7 days",
     "date_range.horizon.next_14d": "Next 14 days",
     "date_range.horizon.next_30d": "Next 30 days",
@@ -6070,6 +6155,19 @@ const translations: Record<Lang, Record<string, string>> = {
     "date_range.custom.invalid":            "End date must be strictly after start date.",
     "date_range.custom.invalid_format":     "Date not recognised (format YYYY-MM-DD).",
     "date_range.custom.invalid_missing":    "Please fill in both date fields.",
+
+    // t-paliad-262 Slice A — canonical `procedural_event` i18n contract.
+    // Mirrors the DE block; values identical to the legacy
+    // `admin.rules.*` keys. Adding/changing values? Update BOTH sides.
+    "admin.procedural_events.list.title":     "Manage procedural events — Paliad",
+    "admin.procedural_events.list.heading":   "Manage procedural events",
+    "admin.procedural_events.list.new":       "+ New procedural event",
+    "admin.procedural_events.col.code":       "Code (procedural event)",
+    "admin.procedural_events.edit.title":     "Edit procedural event — Paliad",
+    "admin.procedural_events.edit.breadcrumb":"← Manage procedural events",
+    "admin.procedural_events.edit.field.code":         "Code (procedural-event identifier)",
+    "admin.procedural_events.edit.field.event_kind":   "Procedural-event kind (filing / hearing / decision / order)",
+    "admin.procedural_events.edit.field.parent":       "Parent procedural event (UUID)",
   },
 };
 

frontend/src/client/verfahrensablauf.ts

@@ -21,38 +21,48 @@ import {
   renderTimelineBody,
   wireDateEditClicks,
 } from "./views/verfahrensablauf-core";
+import {
+  attachEventCardChoices,
+  reseedChips,
+  currentChoices,
+  type EventChoice,
+  type ChoiceKind,
+} from "./views/event-card-choices";
 
 let selectedType = "";
 let lastResponse: DeadlineResponse | null = null;
 
-// Perspective state (t-paliad-250 / m/paliad#81). URL-driven so the
-// view is shareable and survives reload:
-//   ?side=claimant|defendant      → swaps which column owns the user's
-//                                    side (proactive vs reactive label).
-//                                    Default null = claimant-on-the-left.
-//   ?appellant=claimant|defendant → collapses party=both rows into the
-//                                    appellant's column (no mirror).
-//                                    Only meaningful for role-swap
-//                                    proceedings (Appeal etc.). Default
-//                                    null = legacy mirror behaviour.
-let currentSide: Side = null;
-let currentAppellant: Side = null;
-
-// Proceedings where one party initiates and "both" rows are role-swap
-// (i.e. either party files depending on who acted at the lower
-// instance). For these proceedings the appellant selector is meaningful
-// — when set, "both" rows collapse to a single row in the appellant's
-// column. For first-instance proceedings (Inf, Rev, …) the selector is
-// hidden because there's no appellant axis.
+// Perspective state. URL-driven so the view is shareable + survives
+// reload:
+//   ?side=claimant|defendant — swaps which column owns the user's
+//                              side (proactive vs reactive label).
+//                              Default null = claimant-on-the-left.
 //
-// Today: every upc.apl.* family member plus dpma.appeal.* and
-// de.inf.olg / de.inf.bgh / de.null.bgh (DE Berufung / Revision).
-// Conservative — false negatives just hide a control; false positives
-// would show an irrelevant control.
+// t-paliad-301 / m/paliad#132 collapsed the duplicate ?side= +
+// ?appellant= selectors into the single proactive-side picker above.
+// For role-swap proceedings (Appeal / EPA Opposition / DE Revision /
+// DPMA Appeal) the picker's labels swap to per-proceeding role
+// strings (Berufungskläger / Berufungsbeklagter, …) via ROLE_LABELS
+// below — but the underlying claimant/defendant value the engine
+// consumes is unchanged.
+let currentSide: Side = null;
+
+// Project-driven auto-fill state (t-paliad-279 / m/paliad#111). When the
+// page is opened with ?project=<id> and that project has our_side set,
+// the side row renders as a read-only chip instead of the radio cluster.
+// The user can flip to free-pick via the "Andere Seite wählen" override
+// link, which clears this flag (radio cluster takes over again).
+let sidePrefilledFromProject = false;
+
+// Role-swap proceedings — the side picker doubles as the appellant
+// axis. After t-paliad-301 collapsed the duplicate selectors, the
+// engine reads "appellant" from the single side value for these
+// proceedings (so a row with primary_party=both renders only in the
+// chosen side's column). For first-instance proceedings (Inf, Rev,
+// …) the side picker still narrows columns but doesn't collapse
+// the "both" rows.
 const APPELLANT_AXIS_PROCEEDINGS = new Set([
-  "upc.apl.merits",
-  "upc.apl.cost",
-  "upc.apl.order",
+  "upc.apl.unified",
   "de.inf.olg",
   "de.inf.bgh",
   "de.null.bgh",
@@ -61,6 +71,67 @@ const APPELLANT_AXIS_PROCEEDINGS = new Set([
   "epa.opp.boa",
 ]);
 
+// Per-proceeding role labels (t-paliad-301 / m/paliad#132 Bug A).
+// Mirrors paliad.proceeding_types.role_*_label_* — the canonical
+// definition lives in the DB; this map is the frontend's view of
+// it. Proceedings absent from the map fall back to the generic
+// "deadlines.side.claimant" / "deadlines.side.defendant" i18n keys.
+//
+// Keep in sync with mig 137's backfill. Adding a row here without a
+// matching DB row is fine (the DB col is NULL → still falls back to
+// default; UI shows the override). Adding to the DB without here
+// means the UI uses defaults — harmless but inconsistent.
+type RoleLabels = { proDE: string; reDE: string; proEN: string; reEN: string };
+const ROLE_LABELS: Record<string, RoleLabels> = {
+  "upc.apl.unified": {
+    proDE: "Berufungskläger",
+    reDE:  "Berufungsbeklagter",
+    proEN: "Appellant",
+    reEN:  "Appellee",
+  },
+  "upc.rev.cfi": {
+    proDE: "Antragsteller (Nichtigkeit)",
+    reDE:  "Antragsgegner (Nichtigkeit)",
+    proEN: "Revocation claimant",
+    reEN:  "Revocation defendant",
+  },
+  "epa.opp.opd": {
+    proDE: "Einsprechende(r)",
+    reDE:  "Patentinhaber(in)",
+    proEN: "Opponent",
+    reEN:  "Patentee",
+  },
+  "epa.opp.boa": {
+    proDE: "Einsprechende(r)",
+    reDE:  "Patentinhaber(in)",
+    proEN: "Opponent",
+    reEN:  "Patentee",
+  },
+};
+
+// Slice B1 (m/paliad#124 §18.1) — Berufung unification.
+// Proceedings that surface the appeal-target chip group. Currently
+// only the unified upc.apl proceeding; future variants (e.g. de.apl)
+// can opt in by adding the code here.
+const APPEAL_TARGET_PROCEEDINGS = new Set([
+  "upc.apl.unified",
+]);
+
+// Five canonical appeal-target slugs (lp.AppealTargets — keep ordered
+// in sync with pkg/litigationplanner/types.go AppealTargets).
+const APPEAL_TARGETS = [
+  "endentscheidung",
+  "kostenentscheidung",
+  "anordnung",
+  "schadensbemessung",
+  "bucheinsicht",
+] as const;
+type AppealTarget = (typeof APPEAL_TARGETS)[number] | "";
+
+function hasAppealTarget(proceedingType: string): boolean {
+  return APPEAL_TARGET_PROCEEDINGS.has(proceedingType);
+}
+
 function hasAppellantAxis(proceedingType: string): boolean {
   return APPELLANT_AXIS_PROCEEDINGS.has(proceedingType);
 }
@@ -70,11 +141,6 @@ function readSideFromURL(): Side {
   return raw === "claimant" || raw === "defendant" ? raw : null;
 }
 
-function readAppellantFromURL(): Side {
-  const raw = new URLSearchParams(window.location.search).get("appellant");
-  return raw === "claimant" || raw === "defendant" ? raw : null;
-}
-
 function writeSideToURL(s: Side) {
   const url = new URL(window.location.href);
   if (s === null) url.searchParams.delete("side");
@@ -82,13 +148,59 @@ function writeSideToURL(s: Side) {
   window.history.replaceState(null, "", url.pathname + (url.search ? url.search : "") + url.hash);
 }
 
-function writeAppellantToURL(a: Side) {
+// t-paliad-301 / m/paliad#132: applies ROLE_LABELS to the side-row
+// radio labels for the currently selected proceeding. Proceedings
+// without an entry fall back to the existing
+// "deadlines.side.claimant" / "deadlines.side.defendant" i18n keys.
+function applyRoleLabels(proceedingType: string) {
+  const lang = getLang() === "en" ? "en" : "de";
+  const claimantSpan = document.querySelector<HTMLElement>(
+    "input[type=radio][name=side][value=claimant] + span"
+  );
+  const defendantSpan = document.querySelector<HTMLElement>(
+    "input[type=radio][name=side][value=defendant] + span"
+  );
+  if (!claimantSpan || !defendantSpan) return;
+
+  const labels = ROLE_LABELS[proceedingType];
+  if (labels) {
+    claimantSpan.textContent = lang === "en" ? labels.proEN : labels.proDE;
+    defendantSpan.textContent = lang === "en" ? labels.reEN : labels.reDE;
+  } else {
+    // Default — let i18n drive via data-i18n attribute. Reset to the
+    // canonical i18n value so a previous override doesn't stick when
+    // switching from upc.apl.unified back to upc.inf.cfi.
+    claimantSpan.textContent = t("deadlines.side.claimant");
+    defendantSpan.textContent = t("deadlines.side.defendant");
+  }
+}
+
+// Slice B1 — appeal-target URL state. Empty string = no target picked
+// (the row is hidden because the proceeding isn't an appeal). Any
+// other value must be one of APPEAL_TARGETS; unknown values are
+// rejected by readAppealTargetFromURL so a stale link can't break
+// the engine filter.
+function readAppealTargetFromURL(): AppealTarget {
+  const raw = new URLSearchParams(window.location.search).get("target") || "";
+  if ((APPEAL_TARGETS as readonly string[]).includes(raw)) {
+    return raw as AppealTarget;
+  }
+  return "";
+}
+
+function writeAppealTargetToURL(t: AppealTarget) {
   const url = new URL(window.location.href);
-  if (a === null) url.searchParams.delete("appellant");
-  else url.searchParams.set("appellant", a);
+  if (t === "") url.searchParams.delete("target");
+  else url.searchParams.set("target", t);
   window.history.replaceState(null, "", url.pathname + (url.search ? url.search : "") + url.hash);
 }
 
+// Default target on first picker entry into upc.apl. m: Endentscheidung
+// is the most-common appeal target; the chip group also defaults
+// "Endentscheidung" checked in verfahrensablauf.tsx. Keep these two in
+// sync so the URL-less default render hits the same code path.
+let currentAppealTarget: AppealTarget = "";
+
 // Per-rule anchor overrides set by the click-to-edit affordance on
 // timeline / column date cells. Posted as `anchorOverrides` to the
 // /api/tools/fristenrechner calc so downstream rules re-anchor off the
@@ -98,6 +210,56 @@ function writeAppellantToURL(a: Side) {
 const anchorOverrides = new Map<string, string>();
 function clearAnchorOverrides() { anchorOverrides.clear(); }
 
+// Per-event-card choices (t-paliad-265). Unbound on this page (no
+// project context), so persistence is URL-only via `?event_choices=`.
+// Format: comma-separated `submission_code:kind=value` tuples. Same
+// idiom as `?side=` + `?appellant=`.
+let perCardChoices: EventChoice[] = [];
+
+function readChoicesFromURL(): EventChoice[] {
+  const raw = new URLSearchParams(window.location.search).get("event_choices");
+  if (!raw) return [];
+  const out: EventChoice[] = [];
+  for (const tuple of raw.split(",")) {
+    const m = tuple.match(/^([^:]+):([^=]+)=(.+)$/);
+    if (!m) continue;
+    const kind = m[2] as ChoiceKind;
+    if (kind !== "appellant" && kind !== "include_ccr" && kind !== "skip") continue;
+    out.push({ submission_code: m[1], choice_kind: kind, choice_value: m[3] });
+  }
+  return out;
+}
+
+function writeChoicesToURL(choices: EventChoice[]) {
+  const url = new URL(window.location.href);
+  if (choices.length === 0) {
+    url.searchParams.delete("event_choices");
+  } else {
+    const enc = choices.map((c) => `${c.submission_code}:${c.choice_kind}=${c.choice_value}`).join(",");
+    url.searchParams.set("event_choices", enc);
+  }
+  window.history.replaceState(null, "", url.pathname + (url.search ? url.search : "") + url.hash);
+}
+
+// Show-hidden toggle state (t-paliad-290 / m/paliad#122). When ON, the
+// calculator re-surfaces cards whose submission_code is in the active
+// skipRules set; they render faded with a "Wieder einblenden" chip.
+// URL-driven via ?show_hidden=1 so a shared link or reload preserves
+// the visibility. Default OFF — m's not asking to see hidden by
+// default, just to be able to.
+function readShowHiddenFromURL(): boolean {
+  return new URLSearchParams(window.location.search).get("show_hidden") === "1";
+}
+
+function writeShowHiddenToURL(on: boolean) {
+  const url = new URL(window.location.href);
+  if (on) url.searchParams.set("show_hidden", "1");
+  else url.searchParams.delete("show_hidden");
+  window.history.replaceState(null, "", url.pathname + (url.search ? url.search : "") + url.hash);
+}
+
+let showHidden = readShowHiddenFromURL();
+
 type ProcedureView = "timeline" | "columns";
 let procedureView: ProcedureView = "columns";
 
@@ -114,6 +276,21 @@ function writeNotesPref(on: boolean): void {
 }
 let showNotes = readNotesPref();
 
+// Durations toggle (m/paliad#133, t-paliad-302) — when off (default),
+// the per-rule duration label ("2 Mo. nach") only shows on hover via
+// the date span's `title` attribute. When on, the label renders inline
+// in the timeline meta row of every event card. Persisted in
+// localStorage under its own key so the preference is independent of
+// "Hinweise anzeigen".
+const DURATIONS_PREF_KEY = "paliad.verfahrensablauf.durations-show";
+function readDurationsPref(): boolean {
+  try { return localStorage.getItem(DURATIONS_PREF_KEY) === "1"; } catch { return false; }
+}
+function writeDurationsPref(on: boolean): void {
+  try { localStorage.setItem(DURATIONS_PREF_KEY, on ? "1" : "0"); } catch { /* no-op */ }
+}
+let showDurations = readDurationsPref();
+
 // Jurisdiction display prefix for the proceeding-summary chip + the
 // trigger-event placeholder. Same forum slugs the .proceeding-group
 // `data-forum` attribute carries in verfahrensablauf.tsx /
@@ -204,20 +381,48 @@ async function doCalc() {
   const overrides: Record<string, string> = {};
   for (const [code, date] of anchorOverrides) overrides[code] = date;
 
+  // Slice B1 (m/paliad#124 §18.1): for the unified upc.apl Berufung,
+  // default to "endentscheidung" when no chip pick is stored in URL.
+  // For non-appeal proceedings the engine ignores opts.AppealTarget.
+  const appealTarget = hasAppealTarget(selectedType)
+    ? (currentAppealTarget || "endentscheidung")
+    : "";
+
   const data = await calculateDeadlines({
     proceedingType: selectedType,
     triggerDate,
     flags: readFlags(),
     anchorOverrides: overrides,
     courtId,
+    perCardChoices,
+    includeHidden: showHidden,
+    appealTarget,
   });
   if (seq !== calcSeq) return;
   if (!data) return;
   lastResponse = data;
   renderResults(data);
+  syncHiddenBadge(data.hiddenCount ?? 0);
   showStep(3);
 }
 
+// syncHiddenBadge updates the "Ausgeblendete (N)" count next to the
+// toggle. Visible regardless of toggle state so the user knows whether
+// there's anything to re-surface even when the toggle is OFF. Hides the
+// whole row when the projection has zero hidden cards — no clutter on
+// a project that's never used the skip feature. (t-paliad-290)
+function syncHiddenBadge(count: number) {
+  const row = document.getElementById("show-hidden-row");
+  const badge = document.getElementById("show-hidden-count");
+  if (!row || !badge) return;
+  if (count <= 0) {
+    row.style.display = "none";
+    return;
+  }
+  row.style.display = "";
+  badge.textContent = tDyn("choices.show_hidden.count").replace("{n}", String(count));
+}
+
 // triggerEventLabelFor picks the user-facing "Auslösendes Ereignis"
 // label from the calc response. Precedence:
 //
@@ -292,16 +497,27 @@ function renderResults(data: DeadlineResponse) {
     ? renderColumnsBody(data, {
         editable: true,
         showNotes,
+        showDurations,
         side: currentSide,
-        appellant: hasAppellantAxis(selectedType) ? currentAppellant : null,
+        // t-paliad-301: the appellant axis collapses into the single
+        // side picker. For role-swap proceedings, currentSide IS the
+        // appellant pick (so a row with primary_party=both renders only
+        // in the picked side's column). For non-role-swap proceedings,
+        // the appellant axis is irrelevant — pass null.
+        appellant: hasAppellantAxis(selectedType) ? currentSide : null,
       })
-    : renderTimelineBody(data, { showParty: true, editable: true, showNotes });
+    : renderTimelineBody(data, { showParty: true, editable: true, showNotes, showDurations });
 
   container.innerHTML = headerHtml + noteHtml + bodyHtml;
   if (printBtn) printBtn.style.display = "block";
   if (toggle) toggle.style.display = "";
 
   syncTriggerEventLabel();
+
+  // t-paliad-265: rehydrate per-event-card chip indicators after every
+  // re-render so the popover-driven active state survives the
+  // innerHTML rewrite the timeline body just did.
+  reseedChips(container);
 }
 
 function setProceedingPickerCollapsed(collapsed: boolean, displayName?: string) {
@@ -357,7 +573,8 @@ function selectProceeding(btn: HTMLButtonElement) {
 
   void populateCourtPicker("court-picker-row", "court-picker", selectedType);
   syncFlagRows();
-  syncAppellantRowVisibility();
+  syncAppealTargetRowVisibility();
+  applyRoleLabels(selectedType);
 
   setProceedingPickerCollapsed(true, proceedingDisplayName(btn));
 
@@ -365,20 +582,20 @@ function selectProceeding(btn: HTMLButtonElement) {
   scheduleCalc(0);
 }
 
-// syncAppellantRowVisibility hides the appellant selector for
-// proceedings that have no appellant axis (first-instance Inf, Rev,
-// …). Clears the in-memory state and the URL param when hidden so a
-// shared link with ?appellant= doesn't leak into an unrelated
-// proceeding's render.
-function syncAppellantRowVisibility() {
-  const row = document.getElementById("appellant-row");
+// Slice B1 (m/paliad#124 §18.1) — Berufung unification.
+// syncAppealTargetRowVisibility shows the appeal-target chip group
+// when the unified upc.apl Berufung tile is selected, hides it
+// otherwise. Mirrors syncAppellantRowVisibility's pattern: clears
+// state + URL when hiding so a stale ?target= can't leak.
+function syncAppealTargetRowVisibility() {
+  const row = document.getElementById("appeal-target-row");
   if (!row) return;
-  const visible = hasAppellantAxis(selectedType);
+  const visible = hasAppealTarget(selectedType);
   row.style.display = visible ? "" : "none";
-  if (!visible && currentAppellant !== null) {
-    currentAppellant = null;
-    writeAppellantToURL(null);
-    syncRadioGroup("appellant", "");
+  if (!visible && currentAppealTarget !== "") {
+    currentAppealTarget = "";
+    writeAppealTargetToURL("");
+    syncRadioGroup("appeal-target", "endentscheidung");
   }
 }
 
@@ -388,6 +605,138 @@ function syncRadioGroup(name: string, value: string) {
   });
 }
 
+// Project context (t-paliad-279 / m/paliad#111). When the page is opened
+// with ?project=<id> and the project carries an our_side value, the side
+// row renders as a read-only chip with an "Andere Seite wählen" override
+// link. The proceeding picker + appellant axis stay untouched — only the
+// side selector pre-fills.
+interface ProjectOurSide {
+  id: string;
+  our_side?:
+    | "claimant"
+    | "defendant"
+    | "applicant"
+    | "appellant"
+    | "respondent"
+    | "third_party"
+    | "other"
+    | null;
+}
+
+function readProjectFromURL(): string {
+  return new URLSearchParams(window.location.search).get("project") || "";
+}
+
+// ourSideToSide maps the project-level our_side enum (t-paliad-222) onto
+// the side-selector's two-value axis. Active roles (claimant / applicant /
+// appellant) collapse to "claimant"; reactive roles (defendant /
+// respondent) collapse to "defendant"; everything else (third_party /
+// other / NULL) returns null = no pre-fill. Mirrors fristenrechner.ts
+// ourSideToPerspective() so projects render consistently across both
+// surfaces.
+function ourSideToSide(os: ProjectOurSide["our_side"] | undefined): Side {
+  switch (os) {
+    case "claimant":
+    case "applicant":
+    case "appellant":
+      return "claimant";
+    case "defendant":
+    case "respondent":
+      return "defendant";
+    default:
+      return null;
+  }
+}
+
+async function fetchProjectOurSide(projectID: string): Promise<ProjectOurSide | null> {
+  try {
+    const resp = await fetch(`/api/projects/${encodeURIComponent(projectID)}`, {
+      credentials: "same-origin",
+    });
+    if (!resp.ok) return null;
+    return (await resp.json()) as ProjectOurSide;
+  } catch {
+    return null;
+  }
+}
+
+function sideLabelI18n(s: Side): string {
+  if (s === "claimant") return t("deadlines.side.claimant");
+  if (s === "defendant") return t("deadlines.side.defendant");
+  return t("deadlines.side.undefined");
+}
+
+// syncSideHintVisibility shows the "pick a side" hint chip only while
+// currentSide is unset (m/paliad#120). When the user has picked
+// claimant / defendant the columns are already focused, so the prompt
+// would be misleading.
+function syncSideHintVisibility() {
+  const hint = document.getElementById("side-hint");
+  if (!hint) return;
+  hint.style.display = currentSide === null ? "" : "none";
+}
+
+// renderSideChip swaps the radio cluster for a read-only chip showing
+// the auto-filled side + an "Andere Seite wählen" override link. Called
+// after fetchProjectOurSide resolves to a side. The override link clears
+// the prefilled flag and swaps back to the radio cluster — the user can
+// then pick any side freely.
+function renderSideChip(side: Side) {
+  const cluster = document.getElementById("side-radio-cluster");
+  const chip = document.getElementById("side-chip");
+  const value = document.getElementById("side-chip-value");
+  if (!cluster || !chip || !value) return;
+  cluster.style.display = "none";
+  chip.style.display = "";
+  value.textContent = sideLabelI18n(side);
+}
+
+function showSideRadioCluster() {
+  const cluster = document.getElementById("side-radio-cluster");
+  const chip = document.getElementById("side-chip");
+  if (!cluster || !chip) return;
+  cluster.style.display = "";
+  chip.style.display = "none";
+  // Cluster re-appears after override → re-evaluate hint visibility so
+  // we don't leave a stale "pick a side" prompt above a checked radio.
+  syncSideHintVisibility();
+}
+
+// applySidePrefill takes a project's our_side, maps it to the side axis,
+// and locks the side row to a read-only chip if a mapping exists. URL
+// wins — if ?side= is already explicit, the user (or shared link) has
+// already chosen and we never overwrite. When we do prefill, write the
+// derived side to the URL so reload + back/forward round-trip cleanly.
+function applySidePrefill(os: ProjectOurSide["our_side"] | undefined) {
+  if (readSideFromURL() !== null) return;
+  const next = ourSideToSide(os);
+  if (next === null) return;
+  currentSide = next;
+  writeSideToURL(next);
+  syncRadioGroup("side", next);
+  sidePrefilledFromProject = true;
+  renderSideChip(next);
+  if (lastResponse) renderResults(lastResponse);
+}
+
+function clearSidePrefill() {
+  sidePrefilledFromProject = false;
+  showSideRadioCluster();
+  // Drop ?project= from the URL so a reload doesn't re-lock the side.
+  // ?side= stays — that's the user's last pick at this point.
+  const url = new URL(window.location.href);
+  url.searchParams.delete("project");
+  window.history.replaceState(null, "", url.pathname + (url.search ? url.search : "") + url.hash);
+}
+
+async function initProjectAutofill() {
+  const projectID = readProjectFromURL();
+  if (!projectID) return;
+  const project = await fetchProjectOurSide(projectID);
+  if (!project) return;
+  applySidePrefill(project.our_side);
+}
+
 function applyVerfahrensablaufViewBodyClass(view: ProcedureView) {
   // Mirrors the events.ts pattern (body.events-view-*). The print
   // stylesheet keys `body.verfahrensablauf-view-timeline` to
@@ -433,9 +782,10 @@ function initViewToggle() {
 // projection of the last response, no backend involved.
 function initPerspectiveControls() {
   currentSide = readSideFromURL();
-  currentAppellant = readAppellantFromURL();
+  currentAppealTarget = readAppealTargetFromURL();
   syncRadioGroup("side", currentSide ?? "");
-  syncRadioGroup("appellant", currentAppellant ?? "");
+  syncRadioGroup("appeal-target", currentAppealTarget || "endentscheidung");
+  syncSideHintVisibility();
 
   document.querySelectorAll<HTMLInputElement>("input[type=radio][name=side]").forEach((input) => {
     input.addEventListener("change", () => {
@@ -443,17 +793,25 @@ function initPerspectiveControls() {
       const v = input.value;
       currentSide = (v === "claimant" || v === "defendant") ? v : null;
       writeSideToURL(currentSide);
+      syncSideHintVisibility();
       if (lastResponse) renderResults(lastResponse);
     });
   });
 
-  document.querySelectorAll<HTMLInputElement>("input[type=radio][name=appellant]").forEach((input) => {
+  // Slice B1 (m/paliad#124 §18.1) — appeal-target chip handler.
+  // Each chip change re-fetches with the new target slug so the
+  // timeline re-renders against the matching rule subset.
+  document.querySelectorAll<HTMLInputElement>("input[type=radio][name=appeal-target]").forEach((input) => {
     input.addEventListener("change", () => {
       if (!input.checked) return;
       const v = input.value;
-      currentAppellant = (v === "claimant" || v === "defendant") ? v : null;
-      writeAppellantToURL(currentAppellant);
-      if (lastResponse) renderResults(lastResponse);
+      if ((APPEAL_TARGETS as readonly string[]).includes(v)) {
+        currentAppealTarget = v as AppealTarget;
+      } else {
+        currentAppealTarget = "";
+      }
+      writeAppealTargetToURL(currentAppealTarget);
+      scheduleCalc(0);
     });
   });
 }
@@ -526,9 +884,74 @@ document.addEventListener("DOMContentLoaded", () => {
     });
   }
 
+  // Durations toggle (m/paliad#133, t-paliad-302) — sibling of the
+  // notes toggle. Hover-only labels (default) become inline labels when
+  // the user opts in.
+  const durationsShowCb = document.getElementById("verfahrensablauf-durations-show") as HTMLInputElement | null;
+  if (durationsShowCb) {
+    durationsShowCb.checked = showDurations;
+    durationsShowCb.addEventListener("change", () => {
+      showDurations = durationsShowCb.checked;
+      writeDurationsPref(showDurations);
+      if (lastResponse) renderResults(lastResponse);
+    });
+  }
+
+  // t-paliad-290 — show-hidden toggle. Hydrate from URL, wire change
+  // to URL + recalc (the backend reshapes the response — we can't just
+  // re-render lastResponse since the hidden rows aren't in it when the
+  // toggle was OFF).
+  const showHiddenCb = document.getElementById("show-hidden-toggle") as HTMLInputElement | null;
+  if (showHiddenCb) {
+    showHiddenCb.checked = showHidden;
+    showHiddenCb.addEventListener("change", () => {
+      showHidden = showHiddenCb.checked;
+      writeShowHiddenToURL(showHidden);
+      scheduleCalc(0);
+    });
+  }
+
   initViewToggle();
   initPerspectiveControls();
 
+  // t-paliad-265 — per-event-card choices. Unbound surface, so commits
+  // mutate the in-memory list + URL, then trigger a recalc. The
+  // popover module owns the popover lifecycle; this page owns the
+  // recalc + URL plumbing.
+  perCardChoices = readChoicesFromURL();
+  const timelineEl = document.getElementById("timeline-container");
+  if (timelineEl) {
+    attachEventCardChoices({
+      container: timelineEl,
+      initial: perCardChoices,
+      commit: (choice) => {
+        perCardChoices = perCardChoices.filter(
+          (c) => !(c.submission_code === choice.submission_code && c.choice_kind === choice.choice_kind),
+        );
+        perCardChoices.push(choice);
+        writeChoicesToURL(perCardChoices);
+        scheduleCalc(0);
+      },
+      remove: (submissionCode, kind) => {
+        perCardChoices = perCardChoices.filter(
+          (c) => !(c.submission_code === submissionCode && c.choice_kind === kind),
+        );
+        writeChoicesToURL(perCardChoices);
+        scheduleCalc(0);
+      },
+    });
+  }
+
+  // t-paliad-279 — override link on the prefilled side chip — swaps back
+  // to the radio cluster and clears ?project= from the URL.
+  document.getElementById("side-chip-override")?.addEventListener("click", clearSidePrefill);
+
+  // Project autofill — runs after the radio cluster has its URL-driven
+  // state so we never clobber an explicit ?side= pick. Fire-and-forget;
+  // the chip swap happens once the project resolves.
+  void initProjectAutofill();
+
+
   onLangChange(() => {
     // Active-button name updates with language change (the data-i18n
     // pass swaps the inner <strong>'s text). Re-collapse the summary
@@ -539,6 +962,12 @@ document.addEventListener("DOMContentLoaded", () => {
       const summary = document.getElementById("proceeding-summary-name");
       if (summary) summary.textContent = proceedingDisplayName(activeBtn);
     }
+    // Side-chip label tracks language so a DE/EN flip while the chip is
+    // visible re-renders the inferred side in the active language.
+    if (sidePrefilledFromProject) {
+      const value = document.getElementById("side-chip-value");
+      if (value) value.textContent = sideLabelI18n(currentSide);
+    }
     if (lastResponse) renderResults(lastResponse);
     syncTriggerEventLabel();
   });

frontend/src/client/views/event-card-choices.ts

@@ -0,0 +1,320 @@
+// Per-event-card choice popover + chip indicator (t-paliad-265 /
+// m/paliad#96).
+//
+// The shared rendering core (verfahrensablauf-core.ts) emits a caret
+// button on cards that carry a non-empty `choices_offered` declaration
+// and an inert chip span next to the title. This module:
+//
+//   1. Wires a delegated click handler on the result container so the
+//      caret opens a popover with the offered choice-kinds.
+//   2. Commits the user's pick — either by POSTing to the project-
+//      bound endpoint or by mutating the in-memory state for the
+//      unbound (no-project) case.
+//   3. Rehydrates the chip on every render + after every commit so the
+//      glanceable indicator matches the active state.
+//
+// Two consumer pages — /tools/verfahrensablauf (unbound) and
+// /tools/fristenrechner (project-bound) — both wire this module
+// once at boot via attachEventCardChoices().
+
+import { escAttr, escHtml } from "./verfahrensablauf-core";
+import { t } from "../i18n";
+
+export type ChoiceKind = "appellant" | "include_ccr" | "skip";
+
+export interface EventChoice {
+  submission_code: string;
+  choice_kind: ChoiceKind;
+  choice_value: string;
+}
+
+// State surface — the page passes in callbacks that own persistence.
+// commit / remove must trigger a recalc on the page side (the popover
+// only owns its own visual state).
+export interface EventCardChoicesOpts {
+  container: HTMLElement;
+  // Initial state: a list of choices. The page seeds this from the
+  // server response (project-bound) or from URL params (unbound).
+  initial: EventChoice[];
+  // commit gets called for an UPSERT. The page POSTs to the API (or
+  // mutates URL state) AND triggers a recalc.
+  commit: (choice: EventChoice) => Promise<void> | void;
+  // remove gets called when the user resets a choice.
+  remove: (submissionCode: string, kind: ChoiceKind) => Promise<void> | void;
+}
+
+// One mutable bag per attach() call. The current implementation is a
+// single-page singleton — paginated views (admin tables) are not in
+// scope. Last-write-wins on the in-memory state.
+interface AttachedState {
+  opts: EventCardChoicesOpts;
+  // active: submission_code → kind → value. Rebuilt from `initial`
+  // on every reseed() call.
+  active: Map<string, Map<ChoiceKind, string>>;
+  popover: HTMLDivElement | null;
+}
+
+const states = new WeakMap<HTMLElement, AttachedState>();
+
+// attachEventCardChoices wires the delegated click + popover lifecycle
+// to the given container. Call once per page after mount; safe to call
+// again with a fresh container.
+export function attachEventCardChoices(opts: EventCardChoicesOpts): void {
+  const state: AttachedState = {
+    opts,
+    active: new Map(),
+    popover: null,
+  };
+  for (const c of opts.initial) {
+    if (!state.active.has(c.submission_code)) {
+      state.active.set(c.submission_code, new Map());
+    }
+    state.active.get(c.submission_code)!.set(c.choice_kind, c.choice_value);
+  }
+  states.set(opts.container, state);
+
+  opts.container.addEventListener("click", (e) => {
+    const targetEl = e.target as HTMLElement | null;
+    const caret = targetEl?.closest<HTMLElement>(".event-card-choices-caret");
+    if (caret) {
+      e.stopPropagation();
+      openPopover(state, caret);
+      return;
+    }
+    // Outside-click closes the popover.
+    if (state.popover && !state.popover.contains(e.target as Node)) {
+      closePopover(state);
+    }
+  });
+
+  // ESC also closes.
+  document.addEventListener("keydown", (e) => {
+    if (e.key === "Escape" && state.popover) {
+      closePopover(state);
+    }
+  });
+
+  // Repaint chips on every renderResults() call. The page is
+  // responsible for calling reseedChips() after re-render so the chip
+  // dom node (re-created by the renderer) picks the active state up.
+  reseedChips(opts.container);
+}
+
+// reseedChips walks every chip span in the container and re-renders
+// its content from the active state map. Idempotent.
+export function reseedChips(container: HTMLElement): void {
+  const state = states.get(container);
+  if (!state) return;
+  container.querySelectorAll<HTMLElement>(".event-card-choices-chip").forEach((chip) => {
+    const code = chip.dataset.submissionCode || "";
+    const kinds = state.active.get(code);
+    if (!kinds || kinds.size === 0) {
+      chip.innerHTML = "";
+      chip.dataset.empty = "true";
+      return;
+    }
+    chip.dataset.empty = "false";
+    chip.innerHTML = renderChip(kinds);
+  });
+  // Skipped rows fade out via a class on the card-item ancestor.
+  container.querySelectorAll<HTMLElement>(".event-card-choices-chip").forEach((chip) => {
+    const code = chip.dataset.submissionCode || "";
+    const skipped = state.active.get(code)?.get("skip") === "true";
+    const itemEl = chip.closest<HTMLElement>(".timeline-item, .fr-col-item");
+    if (itemEl) itemEl.classList.toggle("timeline-item--skipped", skipped);
+  });
+}
+
+function renderChip(kinds: Map<ChoiceKind, string>): string {
+  const parts: string[] = [];
+  if (kinds.get("skip") === "true") {
+    parts.push(`<span class="event-card-choices-chip-part event-card-choices-chip-part--skipped">${escHtml(t("choices.skipped.chip"))}</span>`);
+  }
+  const ap = kinds.get("appellant");
+  if (ap && ap !== "" ) {
+    let label = "";
+    switch (ap) {
+      case "claimant":  label = t("choices.appellant.claimant"); break;
+      case "defendant": label = t("choices.appellant.defendant"); break;
+      case "both":      label = t("choices.appellant.both"); break;
+      case "none":      label = t("choices.appellant.none"); break;
+    }
+    if (label) {
+      parts.push(`<span class="event-card-choices-chip-part">${escHtml(t("choices.appellant.chip"))} ${escHtml(label)}</span>`);
+    }
+  }
+  if (kinds.get("include_ccr") === "true") {
+    parts.push(`<span class="event-card-choices-chip-part">${escHtml(t("choices.include_ccr.chip"))}</span>`);
+  }
+  return parts.join(" ");
+}
+
+function openPopover(state: AttachedState, caret: HTMLElement): void {
+  closePopover(state);
+  const code = caret.dataset.submissionCode || "";
+  if (!code) return;
+  let offered: Record<string, unknown> = {};
+  try {
+    offered = JSON.parse(caret.dataset.choicesOffered || "{}");
+  } catch {
+    return;
+  }
+  const isHidden = caret.dataset.isHidden === "1";
+
+  const pop = document.createElement("div");
+  pop.className = "event-card-choices-popover";
+  pop.setAttribute("role", "dialog");
+  pop.setAttribute("aria-label", t("choices.caret.title"));
+
+  const blocks: string[] = [];
+  // t-paliad-293: hidden-card prominence. When the user opens the
+  // popover on a re-surfaced hidden card, "Wieder einblenden" is the
+  // most likely intent — surface it as a single high-contrast action
+  // at the top of the popover (rather than burying it under the skip
+  // toggle's reset link). Clicking it clears the `skip` choice, which
+  // is the same wire effect as the legacy inline chip from t-paliad-290.
+  if (isHidden) {
+    blocks.push(renderUnhideBlock());
+  }
+  if (Array.isArray(offered.appellant)) {
+    blocks.push(renderAppellantBlock(state, code, offered.appellant as unknown[]));
+  }
+  if (Array.isArray(offered.include_ccr)) {
+    blocks.push(renderToggleBlock(state, code, "include_ccr"));
+  }
+  if (Array.isArray(offered.skip)) {
+    blocks.push(renderToggleBlock(state, code, "skip"));
+  }
+  pop.innerHTML = blocks.join("");
+
+  document.body.appendChild(pop);
+  state.popover = pop;
+  positionPopover(pop, caret);
+
+  pop.addEventListener("click", async (e) => {
+    const btn = (e.target as HTMLElement | null)?.closest<HTMLButtonElement>("button[data-choice-action]");
+    if (!btn) return;
+    e.stopPropagation();
+    const kind = btn.dataset.choiceKind as ChoiceKind | undefined;
+    const value = btn.dataset.choiceValue || "";
+    const action = btn.dataset.choiceAction;
+    if (!kind) return;
+    try {
+      if (action === "set") {
+        await state.opts.commit({ submission_code: code, choice_kind: kind, choice_value: value });
+        if (!state.active.has(code)) state.active.set(code, new Map());
+        state.active.get(code)!.set(kind, value);
+      } else if (action === "clear") {
+        await state.opts.remove(code, kind);
+        state.active.get(code)?.delete(kind);
+      }
+      reseedChips(state.opts.container);
+      closePopover(state);
+    } catch (err) {
+      console.error("event card choice commit failed", err);
+      // Surface a soft inline error inside the popover; do NOT close.
+      const errEl = document.createElement("div");
+      errEl.className = "event-card-choices-error";
+      errEl.textContent = t("choices.commit.error");
+      pop.appendChild(errEl);
+    }
+  });
+}
+
+function renderAppellantBlock(state: AttachedState, code: string, values: unknown[]): string {
+  const current = state.active.get(code)?.get("appellant") || "";
+  const buttons = values
+    .filter((v): v is string => typeof v === "string")
+    .map((v) => {
+      const labelKey = `choices.appellant.${v}` as const;
+      const isActive = v === current;
+      return `<button type="button"
+        data-choice-action="set"
+        data-choice-kind="appellant"
+        data-choice-value="${escAttr(v)}"
+        class="event-card-choices-option${isActive ? " event-card-choices-option--active" : ""}">${escHtml(t(labelKey as any))}</button>`;
+    })
+    .join("");
+  const reset = current
+    ? `<button type="button" data-choice-action="clear" data-choice-kind="appellant"
+        class="event-card-choices-reset">${escHtml(t("choices.reset"))}</button>`
+    : "";
+  return `<div class="event-card-choices-block">
+    <div class="event-card-choices-title">${escHtml(t("choices.appellant.title"))}</div>
+    <div class="event-card-choices-options">${buttons}</div>
+    ${reset}
+  </div>`;
+}
+
+function renderToggleBlock(state: AttachedState, code: string, kind: "include_ccr" | "skip"): string {
+  const current = state.active.get(code)?.get(kind) || "false";
+  const titleKey = kind === "include_ccr" ? "choices.include_ccr.title" : "choices.skip.title";
+  const trueKey = kind === "include_ccr" ? "choices.include_ccr.true" : "choices.skip.true";
+  const falseKey = kind === "include_ccr" ? "choices.include_ccr.false" : "choices.skip.false";
+  const opt = (v: "true" | "false", labelKey: string) => `<button type="button"
+    data-choice-action="set"
+    data-choice-kind="${kind}"
+    data-choice-value="${v}"
+    class="event-card-choices-option${v === current ? " event-card-choices-option--active" : ""}">${escHtml(t(labelKey as any))}</button>`;
+  const reset = state.active.get(code)?.has(kind)
+    ? `<button type="button" data-choice-action="clear" data-choice-kind="${kind}"
+        class="event-card-choices-reset">${escHtml(t("choices.reset"))}</button>`
+    : "";
+  return `<div class="event-card-choices-block">
+    <div class="event-card-choices-title">${escHtml(t(titleKey as any))}</div>
+    <div class="event-card-choices-options">
+      ${opt("true", trueKey)}
+      ${opt("false", falseKey)}
+    </div>
+    ${reset}
+  </div>`;
+}
+
+// renderUnhideBlock is the popover's prominent "Wieder einblenden"
+// action — surfaced only when the caret is opened on a re-surfaced
+// hidden card (data-is-hidden="1" on the caret). Clicking it dispatches
+// the same `clear` action as the skip-block reset link below, but
+// labelled in the user's terms ("restore this card" rather than
+// "reset skip choice"). Drops out of the popover automatically on
+// non-hidden cards so the popover stays minimal. (t-paliad-293)
+function renderUnhideBlock(): string {
+  const label = t("choices.unhide.chip");
+  return `<div class="event-card-choices-block event-card-choices-block--unhide">
+    <button type="button"
+      data-choice-action="clear"
+      data-choice-kind="skip"
+      class="event-card-choices-unhide-btn">${escHtml(label)}</button>
+  </div>`;
+}
+
+function closePopover(state: AttachedState): void {
+  if (state.popover) {
+    state.popover.remove();
+    state.popover = null;
+  }
+}
+
+function positionPopover(pop: HTMLDivElement, caret: HTMLElement): void {
+  const rect = caret.getBoundingClientRect();
+  const scrollY = window.scrollY || document.documentElement.scrollTop;
+  const scrollX = window.scrollX || document.documentElement.scrollLeft;
+  pop.style.position = "absolute";
+  pop.style.top = `${rect.bottom + scrollY + 4}px`;
+  pop.style.left = `${Math.max(8, rect.right + scrollX - 240)}px`;
+  pop.style.zIndex = "1000";
+}
+
+// Returns the current in-memory choice list for the given container —
+// used by the unbound /tools/verfahrensablauf page to keep the URL
+// param in sync.
+export function currentChoices(container: HTMLElement): EventChoice[] {
+  const state = states.get(container);
+  if (!state) return [];
+  const out: EventChoice[] = [];
+  state.active.forEach((kinds, code) => {
+    kinds.forEach((value, kind) => {
+      out.push({ submission_code: code, choice_kind: kind, choice_value: value });
+    });
+  });
+  return out;
+}

frontend/src/client/views/types.ts

@@ -66,7 +66,13 @@ export interface FilterSpec {
   sources: DataSource[];
   scope: ScopeSpec;
   time: TimeSpec;
-  predicates?: Partial<Record<DataSource, Predicates>>;
+  // Per-source narrowing. Flat shape — one entry per data source. The
+  // Go side (internal/services/filter_spec.go: FilterSpec.Predicates)
+  // mirrors this exactly; the previous Partial<Record<DataSource,
+  // Predicates>> spelling was a latent contract bug (t-paliad-283)
+  // where every chip click sent a single-nested shape the server
+  // unmarshalled to no-op.
+  predicates?: Predicates;
   // Inbox unread-only overlay (t-paliad-249). When true, the view
   // service drops project_event rows older than the caller's
   // users.inbox_seen_at cursor. Pending approval_requests always

frontend/src/client/views/verfahrensablauf-core.test.ts

@@ -1,8 +1,10 @@
 import { describe, expect, test } from "bun:test";
 import {
   type CalculatedDeadline,
+  type DeadlineResponse,
   bucketDeadlinesIntoColumns,
   deadlineCardHtml,
+  renderColumnsBody,
 } from "./verfahrensablauf-core";
 
 // Regression tests for the editable→click-to-edit wiring on timeline date
@@ -67,6 +69,153 @@ describe("deadlineCardHtml — editable=true emits click-to-edit attrs", () => {
   });
 });
 
+// t-paliad-293 (m/paliad#125): the "Wieder einblenden" affordance
+// moved from an inline chip in the card header into the caret popover
+// to fix horizontal-scroll on narrow viewports (the long German label
+// pushed the card past its column width). The renderer now signals
+// hidden state two ways: (1) a 👁⃠ state-icon in the title row and
+// (2) data-is-hidden="1" on the caret button so event-card-choices.ts
+// can surface the prominent "Wieder einblenden" popover entry when
+// the user opens the menu. The legacy `.event-card-choices-unhide`
+// inline chip class must NOT appear in the output.
+describe("deadlineCardHtml — isHidden surfaces state-icon + caret hint (t-paliad-293)", () => {
+  test("isHidden=true emits the hidden state-icon", () => {
+    const html = deadlineCardHtml(
+      dl({ isHidden: true, choicesOffered: { skip: [true, false] } }),
+      { showParty: true },
+    );
+    expect(html).toContain("timeline-state-icon--hidden");
+  });
+
+  test("isHidden=true with choicesOffered.skip annotates the caret with data-is-hidden=\"1\"", () => {
+    const html = deadlineCardHtml(
+      dl({ isHidden: true, choicesOffered: { skip: [true, false] } }),
+      { showParty: true },
+    );
+    expect(html).toContain('data-is-hidden="1"');
+    expect(html).toContain("event-card-choices-caret");
+  });
+
+  test("isHidden=false (default) suppresses the state-icon and reports data-is-hidden=\"0\"", () => {
+    const html = deadlineCardHtml(
+      dl({ choicesOffered: { skip: [true, false] } }),
+      { showParty: true },
+    );
+    expect(html).not.toContain("timeline-state-icon--hidden");
+    expect(html).toContain('data-is-hidden="0"');
+  });
+
+  test("isHidden=true with empty choicesOffered still emits caret with synthesized skip offer (defensive)", () => {
+    // Edge case: admin edits the rule's choices_offered after a user
+    // has already saved a `skip=true` choice. Without the fallback
+    // the card would re-surface as hidden with no popover entrypoint
+    // — the user would have no way to un-hide it. The renderer
+    // synthesizes a `{skip:[true,false]}` offer so the prominent
+    // "Wieder einblenden" button still renders in the popover.
+    const html = deadlineCardHtml(dl({ isHidden: true }), { showParty: true });
+    expect(html).toContain("event-card-choices-caret");
+    expect(html).toContain('data-is-hidden="1"');
+    expect(html).toContain("data-choices-offered=\"{"skip":[true,false]}\"");
+  });
+
+  test("isHidden=false with empty choicesOffered suppresses caret (regression guard)", () => {
+    const html = deadlineCardHtml(dl(), { showParty: true });
+    expect(html).not.toContain("event-card-choices-caret");
+  });
+
+  test("legacy inline `.event-card-choices-unhide` class is no longer emitted", () => {
+    // Pinned to catch a regression that would re-introduce the
+    // horizontal-scroll surface that motivated the move. The popover
+    // now uses `.event-card-choices-unhide-btn` (with the -btn suffix)
+    // inside the body-attached popover dom node — never in the card
+    // header HTML the renderer returns.
+    const html = deadlineCardHtml(
+      dl({ isHidden: true, choicesOffered: { skip: [true, false] } }),
+      { showParty: true },
+    );
+    expect(html).not.toContain('class="event-card-choices-unhide"');
+    expect(html).not.toMatch(/event-card-choices-unhide(?!-btn)/);
+  });
+});
+
+// t-paliad-293: the `optional` priority used to render an inline text
+// badge in the card title. The overhaul replaces it with a ⊙ state
+// icon so the title row stays compact on narrow viewports. Tooltip is
+// driven by the `state.optional.tooltip` i18n key.
+describe("deadlineCardHtml — optional priority renders the state icon (t-paliad-293)", () => {
+  test("priority='optional' emits the timeline-state-icon--optional marker", () => {
+    const html = deadlineCardHtml(dl({ priority: "optional" }), { showParty: true });
+    expect(html).toContain("timeline-state-icon--optional");
+    expect(html).not.toContain("optional-badge");
+  });
+
+  test("priority='mandatory' (default) omits the optional marker", () => {
+    const html = deadlineCardHtml(dl(), { showParty: true });
+    expect(html).not.toContain("timeline-state-icon--optional");
+  });
+});
+
+// t-paliad-289 — isConditional rules render an "abhängig von <parent>"
+// chip in place of the date column, and the chip keeps the click-to-edit
+// affordance so the user can pin a real date once the upstream anchor
+// resolves (oral hearing scheduled, opposing party's motion received, …).
+// Mirrors Symptom A (R.109(1) backward-anchor without oral-hearing date)
+// and Symptom B (R.262(2) without recorded Vertraulichkeitsantrag) from
+// the issue.
+describe("deadlineCardHtml — isConditional rendering (t-paliad-289)", () => {
+  test("isConditional + parentRuleName emits 'abhängig von <parent>' chip with click-to-edit", () => {
+    const html = deadlineCardHtml(
+      dl({
+        code: "upc.inf.cfi.translation_request",
+        isConditional: true,
+        parentRuleCode: "upc.inf.cfi.oral",
+        parentRuleName: "Mündliche Verhandlung",
+      }),
+      { showParty: true, editable: true },
+    );
+    expect(html).toContain("timeline-conditional");
+    expect(html).toContain("abhängig von Mündliche Verhandlung");
+    expect(html).toContain('data-rule-code="upc.inf.cfi.translation_request"');
+    expect(html).toContain('role="button"');
+    expect(html).not.toContain("timeline-court-set");
+  });
+
+  test("isConditional with no parentRuleName falls back to generic upstream-event label", () => {
+    const html = deadlineCardHtml(
+      dl({ isConditional: true }),
+      { showParty: true, editable: true },
+    );
+    expect(html).toContain("timeline-conditional");
+    expect(html).toContain("abhängig von vorgelagertem Ereignis");
+  });
+
+  test("isConditional wins over isCourtSet — overlapping cases render conditional chip", () => {
+    // Court-set ancestor without override sets BOTH isCourtSet=true AND
+    // isConditional=true on the wire. The renderer must pick the
+    // conditional chip; otherwise the row keeps the legacy "wird vom
+    // Gericht bestimmt" label and the user can't see WHICH upstream
+    // event blocks them.
+    const html = deadlineCardHtml(
+      dl({
+        isConditional: true,
+        isCourtSet: true,
+        isCourtSetIndirect: true,
+        parentRuleName: "Entscheidung",
+      }),
+      { showParty: true, editable: true },
+    );
+    expect(html).toContain("abhängig von Entscheidung");
+    expect(html).not.toContain("timeline-court-set");
+  });
+
+  test("isConditional=false keeps the normal date span (regression guard)", () => {
+    const html = deadlineCardHtml(dl({ isConditional: false }), { showParty: true });
+    expect(html).toContain("timeline-date");
+    expect(html).not.toContain("timeline-conditional");
+  });
+});
+
+
 // Pure column-routing behaviour. Originally pinned by m/paliad#81
 // (side + appellant axes), re-framed by m/paliad#88: the column
 // axis is now "Unsere Seite vs Gegnerseite" ("WE always on the
@@ -178,6 +327,29 @@ describe("bucketDeadlinesIntoColumns — side+appellant column routing (m/paliad
     expect(rows[0].ours).toHaveLength(0);
   });
 
+  test("side=defendant collapses 'both' rules into ours (no mirror) — m/paliad#135", () => {
+    // When the user has committed to a perspective via `?side=`, the
+    // mirror is visual noise: the same card renders twice on one row,
+    // once in 'Unsere Seite' and once in 'Gegnerseite'. The card's
+    // '↔ beide Seiten' indicator already conveys the both-parties
+    // semantic, so collapsing into ours is sufficient.
+    const rows = bucketDeadlinesIntoColumns(
+      [both("Antrag auf Simultanübersetzung", "2026-04-27")],
+      { side: "defendant" },
+    );
+    expect(rows[0].ours.map((d) => d.name)).toEqual(["Antrag auf Simultanübersetzung"]);
+    expect(rows[0].opponent).toHaveLength(0);
+  });
+
+  test("side=claimant collapses 'both' rules into ours (no mirror) — m/paliad#135", () => {
+    const rows = bucketDeadlinesIntoColumns(
+      [both("Antrag auf Simultanübersetzung", "2026-04-27")],
+      { side: "claimant" },
+    );
+    expect(rows[0].ours.map((d) => d.name)).toEqual(["Antrag auf Simultanübersetzung"]);
+    expect(rows[0].opponent).toHaveLength(0);
+  });
+
   test("rows align across columns by dueDate so same-day events stay on one grid row", () => {
     const sameDate = "2026-07-23";
     const rows = bucketDeadlinesIntoColumns([
@@ -191,6 +363,48 @@ describe("bucketDeadlinesIntoColumns — side+appellant column routing (m/paliad
     expect(rows[0].court.map((d) => d.name)).toEqual(["C"]);
   });
 
+  test("appellantContext overrides the page-level appellant for descendants (t-paliad-265)", () => {
+    // A per-decision pick stamps AppellantContext on descendants of
+    // that decision. The bucketer prefers it over the page-level
+    // appellant: if a "both" row carries appellantContext='defendant',
+    // it collapses to defendant's column regardless of the global
+    // appellant opt.
+    const dl: CalculatedDeadline = {
+      ...both("Notice of Appeal", "2026-07-23"),
+      appellantContext: "defendant",
+    };
+    const rows = bucketDeadlinesIntoColumns([dl], { appellant: "claimant" });
+    expect(rows[0].ours).toHaveLength(0);
+    expect(rows[0].opponent.map((d) => d.name)).toEqual(["Notice of Appeal"]);
+  });
+
+  test("appellantContext='claimant' + side='defendant' lands the row in opponent (claimant ≠ us)", () => {
+    // The user is on the defendant side; per-card pick says the
+    // claimant appealed. The "both" row collapses to the claimant's
+    // column, which after the side-swap is opponent (right).
+    const dl: CalculatedDeadline = {
+      ...both("Notice of Appeal", "2026-07-23"),
+      appellantContext: "claimant",
+    };
+    const rows = bucketDeadlinesIntoColumns([dl], { side: "defendant", appellant: "defendant" });
+    expect(rows[0].ours).toHaveLength(0);
+    expect(rows[0].opponent.map((d) => d.name)).toEqual(["Notice of Appeal"]);
+  });
+
+  test("appellantContext='both' or 'none' falls back to page-level mirror (t-paliad-265)", () => {
+    // 'both' and 'none' aren't side-collapse values — they're
+    // statements about who appealed but don't pick a column. The
+    // bucketer treats them as no override, so the page-level
+    // appellant (or default mirror) applies.
+    const both1: CalculatedDeadline = {
+      ...both("Notice of Appeal", "2026-07-23"),
+      appellantContext: "both",
+    };
+    const rowsBoth = bucketDeadlinesIntoColumns([both1]);
+    expect(rowsBoth[0].ours.map((d) => d.name)).toEqual(["Notice of Appeal"]);
+    expect(rowsBoth[0].opponent.map((d) => d.name)).toEqual(["Notice of Appeal"]);
+  });
+
   test("unscheduled rows (no dueDate) trail dated rows, preserving declaration order", () => {
     const rows = bucketDeadlinesIntoColumns([
       partySpecific("court", "Oral Hearing", ""),
@@ -203,4 +417,73 @@ describe("bucketDeadlinesIntoColumns — side+appellant column routing (m/paliad
       ["Decision"],
     ]);
   });
+
+});
+
+// m's correction in m/paliad#127 (t-paliad-295) reverted half of #88's
+// header refresh: the user-perspective labels "Unsere Seite"/"Gegnerseite"
+// only make sense once the user has picked a side. While the side is
+// still "Nicht festgelegt" (side === null — the default after #120) the
+// header falls back to the semantic-neutral "Proaktiv"/"Reaktiv" labels.
+// Picking a side re-enables the #88 labels. The bucketing primitive
+// itself is unchanged — only the column-header text differs.
+describe("renderColumnsBody — side-aware column header labels (m/paliad#127)", () => {
+  const dlFix = (party: string, name: string, due: string): CalculatedDeadline => ({
+    code: name,
+    name,
+    nameEN: name,
+    party,
+    priority: "mandatory",
+    ruleRef: "",
+    dueDate: due,
+    originalDate: due,
+    wasAdjusted: false,
+    isRootEvent: false,
+    isCourtSet: false,
+  });
+  const data: DeadlineResponse = {
+    proceedingType: "upc.inf.cfi",
+    proceedingName: "UPC Verletzungsverfahren",
+    triggerDate: "2026-01-01",
+    deadlines: [
+      dlFix("claimant", "Klageschrift", "2026-01-01"),
+      dlFix("defendant", "Klageerwiderung", "2026-04-01"),
+    ],
+  };
+
+  test("side=null renders Proaktiv/Gericht/Reaktiv headers", () => {
+    const html = renderColumnsBody(data, { side: null });
+    expect(html).toContain(">Proaktiv<");
+    expect(html).toContain(">Gericht<");
+    expect(html).toContain(">Reaktiv<");
+    expect(html).not.toContain(">Unsere Seite<");
+    expect(html).not.toContain(">Gegnerseite<");
+  });
+
+  test("side=null when opts omitted (default) still renders Proaktiv/Reaktiv", () => {
+    const html = renderColumnsBody(data);
+    expect(html).toContain(">Proaktiv<");
+    expect(html).toContain(">Reaktiv<");
+  });
+
+  test("side=claimant renders Unsere Seite/Gericht/Gegnerseite headers", () => {
+    const html = renderColumnsBody(data, { side: "claimant" });
+    expect(html).toContain(">Unsere Seite<");
+    expect(html).toContain(">Gericht<");
+    expect(html).toContain(">Gegnerseite<");
+    expect(html).not.toContain(">Proaktiv<");
+    expect(html).not.toContain(">Reaktiv<");
+  });
+
+  test("side=defendant renders Unsere Seite/Gegnerseite headers (column swap is bucketing, not labels)", () => {
+    // The user-perspective labels are picked once a side is set; the
+    // bucketer still routes defendant filings into the `ours` column when
+    // side=defendant, so the left column's header truthfully reads
+    // "Unsere Seite" regardless of which underlying party occupies it.
+    const html = renderColumnsBody(data, { side: "defendant" });
+    expect(html).toContain(">Unsere Seite<");
+    expect(html).toContain(">Gegnerseite<");
+    expect(html).not.toContain(">Proaktiv<");
+    expect(html).not.toContain(">Reaktiv<");
+  });
 });

frontend/src/client/views/verfahrensablauf-core.ts

@@ -61,6 +61,70 @@ export interface CalculatedDeadline {
   // Frontend save-modal logic doesn't read this; the rule editor
   // (Slice 11) is the consumer. Unknown shape on this side — pass-through.
   conditionExpr?: unknown;
+  // choicesOffered (t-paliad-265): declares which per-card choice-kinds
+  // this rule offers on the Verfahrensablauf timeline. Object shape:
+  // { appellant?: string[], include_ccr?: [true,false], skip?: [true,false] }.
+  // null/undefined = no caret affordance.
+  choicesOffered?: Record<string, unknown>;
+  // appellantContext (t-paliad-265): the per-decision appellant pick
+  // that applies to descendants of the closest ancestor decision card
+  // with a per-card appellant set. Empty = no per-card override (the
+  // page-level appellant axis still applies in that case). The bucketer
+  // reads this in preference to the page-level appellant.
+  appellantContext?: string;
+  // isHidden (t-paliad-290 / m/paliad#122): server-side flag set when
+  // a previously-hidden card is re-surfaced via the "Ausgeblendete
+  // anzeigen" toggle. The renderer fades the card and exposes an
+  // inline "Wieder einblenden" chip that deletes the skip choice.
+  isHidden?: boolean;
+  // isConditional (t-paliad-289): the rule's anchor is uncertain, so
+  // no concrete date is projected. Set by the calculator when the rule
+  // depends on a court-set ancestor without override, when a backward-
+  // anchored rule's forward anchor isn't set, or for optional rules
+  // whose true triggering event sits outside the rule data (e.g.
+  // R.262(2) Erwiderung auf Vertraulichkeitsantrag — anchored on SoC
+  // in the data, but the real trigger is the opposing party's
+  // confidentiality motion). The renderer drops the date column entry
+  // and shows an "abhängig von <parentRuleName>" chip instead.
+  isConditional?: boolean;
+  // parentRuleCode / parentRuleName / parentRuleNameEN surface the
+  // parent rule's identity so the renderer can label the
+  // "abhängig von <parent>" chip on conditional rows. Populated for
+  // every rule with a parent (not just conditional ones), so the
+  // dependency-footer logic can reuse it. Empty for root rules.
+  parentRuleCode?: string;
+  parentRuleName?: string;
+  parentRuleNameEN?: string;
+  // durationValue / durationUnit / timing surface the rule's arithmetic
+  // so the timeline card can show "2 Mo. nach" on hover (and inline when
+  // the "Dauern anzeigen" toggle is on). Zero-duration rules (root
+  // event, court-set) carry durationValue=0 and the renderer suppresses
+  // the affordance — those don't have an explainable interval.
+  // (m/paliad#133, t-paliad-302)
+  durationValue?: number;
+  durationUnit?: string;
+  timing?: string;
+}
+
+// formatDurationLabel renders the per-rule duration ("2 Mo. nach") for
+// the Verfahrensablauf card affordance (m/paliad#133, t-paliad-302).
+// Returns empty string for rules without a usable duration so the
+// caller can skip the tooltip / inline span entirely.
+//
+// Pluralisation key naming mirrors the Fristenrechner event-mode
+// renderer (deadlines.event.unit.<unit>.{one,many}) — the unit and
+// timing translations already exist for /tools/fristenrechner's
+// "Was kommt nach…" mode and are reused here as the single
+// source of truth.
+export function formatDurationLabel(dl: CalculatedDeadline): string {
+  const value = dl.durationValue ?? 0;
+  const unit = dl.durationUnit || "";
+  if (value <= 0 || !unit) return "";
+  const unitKey = `deadlines.event.unit.${unit}` + (value === 1 ? ".one" : ".many");
+  const unitStr = tDyn(unitKey);
+  const timing = dl.timing || "";
+  const timingStr = timing ? tDyn(`deadlines.event.timing.${timing}`) : "";
+  return timingStr ? `${value} ${unitStr} ${timingStr}` : `${value} ${unitStr}`;
 }
 
 // priorityRendering returns the per-priority UX hints the save-modal
@@ -120,6 +184,13 @@ export interface DeadlineResponse {
   // (m/paliad#81)
   triggerEventLabel?: string;
   triggerEventLabelEN?: string;
+  // hiddenCount (t-paliad-290 / m/paliad#122): number of rules that
+  // would have been hidden in this projection (i.e. their
+  // submission_code is in skipRules and they passed the condition_expr
+  // gate). Surfaces the "Ausgeblendete (N)" badge on the toggle even
+  // when the toggle is OFF — so users know there's something to
+  // re-surface.
+  hiddenCount?: number;
 }
 
 export interface CourtRow {
@@ -139,6 +210,27 @@ export interface CalcParams {
   flags?: string[];
   anchorOverrides?: Record<string, string>;
   courtId?: string;
+  // t-paliad-265: per-event-card choices. Either pass `projectId` for
+  // server-side lookup against paliad.project_event_choices, OR pass
+  // an inline list (for the unbound /tools/verfahrensablauf surface).
+  // When both are supplied the inline list wins server-side.
+  projectId?: string;
+  perCardChoices?: Array<{
+    submission_code: string;
+    choice_kind: string;
+    choice_value: string;
+  }>;
+  // includeHidden (t-paliad-290): when true the calculator returns
+  // previously-skipped rules as faded cards instead of dropping them.
+  // Sent only when the page-level "Ausgeblendete anzeigen" toggle is
+  // ON.
+  includeHidden?: boolean;
+  // Slice B1 / m/paliad#124 §18.1: narrows the unified UPC Berufung
+  // (upc.apl) timeline to the rule subset whose applies_to_target
+  // contains the requested slug. Empty = no filter. Valid values:
+  // endentscheidung | kostenentscheidung | anordnung |
+  // schadensbemessung | bucheinsicht.
+  appealTarget?: string;
 }
 
 const PARTY_CLASS: Record<string, string> = {
@@ -154,10 +246,20 @@ export function escAttr(s: string): string {
   return s.replace(/&/g, "&amp;").replace(/"/g, "&quot;");
 }
 
+// Pure-string HTML escape — keeps the module testable in bun test
+// (plain Node, no jsdom). Used to be backed by document.createElement,
+// which forced fixtures to leave any field that flowed through it
+// empty just to exercise unrelated branches; the regex form is safe
+// for arbitrary text including the per-rule name strings that the
+// conditional-row chip ("abhängig von <parent>") now exposes.
+// (t-paliad-289)
 export function escHtml(s: string): string {
-  const d = document.createElement("div");
-  d.textContent = s;
-  return d.innerHTML;
+  return s
+    .replace(/&/g, "&amp;")
+    .replace(/</g, "&lt;")
+    .replace(/>/g, "&gt;")
+    .replace(/"/g, "&quot;")
+    .replace(/'/g, "&#39;");
 }
 
 export function formatDate(dateStr: string): string {
@@ -249,27 +351,110 @@ export interface CardOpts {
   // Page shells expose a toggle ("Hinweise anzeigen") that flips this and
   // re-renders. Default false — notes are noisy on long timelines.
   showNotes?: boolean;
+  // showDurations controls per-rule duration rendering on event cards
+  // (m/paliad#133, t-paliad-302):
+  //   true  → inline `<span class="timeline-duration">2 Mo. nach</span>`
+  //           next to the date.
+  //   false → hover-only tooltip on the date span (browser-native
+  //           `title` attribute). Cards without a usable
+  //           `durationValue > 0` get neither — court-set and trigger-
+  //           event cards have no explainable interval.
+  // /tools/verfahrensablauf exposes a toggle ("Dauern anzeigen") that
+  // flips this and re-renders; persisted via the localStorage key
+  // `paliad.verfahrensablauf.durations-show`. Default false.
+  showDurations?: boolean;
 }
 
 export function deadlineCardHtml(dl: CalculatedDeadline, opts: CardOpts): string {
   const wantsEditable = !!opts.editable;
   const editable = wantsEditable && !dl.isRootEvent && dl.code !== "";
   const overriddenClass = dl.isOverridden ? " timeline-date--overridden" : "";
+  // Duration affordance (m/paliad#133, t-paliad-302). Computed once so
+  // both the date-span tooltip and the inline meta-row span pull from
+  // the same string. Empty for rules without a usable duration.
+  const durationLabel = formatDurationLabel(dl);
+  // Hover affordance on the date span: prefer the duration tooltip when
+  // we have one, else fall back to the edit-hint when the cell is
+  // click-to-edit. The edit affordance still works either way — the
+  // title is purely advisory.
+  const dateTitle = durationLabel
+    ? durationLabel
+    : (editable ? t("deadlines.date.edit.hint") : "");
   const editAttrs = editable
-    ? ` data-rule-code="${escAttr(dl.code)}" data-current-date="${escAttr(dl.dueDate)}" role="button" tabindex="0" title="${escAttr(t("deadlines.date.edit.hint"))}"`
-    : "";
-  const courtLabelKey = dl.isCourtSetIndirect
-    ? "deadlines.court.indirect"
-    : "deadlines.court.set";
-  const dateStr = dl.isCourtSet
-    ? `<span class="timeline-court-set frist-date-edit"${editAttrs}>${t(courtLabelKey)}</span>`
-    : `<span class="timeline-date${overriddenClass} frist-date-edit"${editAttrs}>${formatDate(dl.dueDate)}</span>`;
+    ? ` data-rule-code="${escAttr(dl.code)}" data-current-date="${escAttr(dl.dueDate)}" role="button" tabindex="0"${dateTitle ? ` title="${escAttr(dateTitle)}"` : ""}`
+    : (dateTitle ? ` title="${escAttr(dateTitle)}"` : "");
+  // Conditional rows (t-paliad-289) replace the date column with an
+  // "abhängig von <parent>" chip. The chip remains click-to-edit so
+  // the user can pin a real date once known (e.g. once the oral
+  // hearing date is set, or the opposing party's Vertraulichkeits-
+  // antrag arrives) — the same data-rule-code wiring fires the
+  // existing inline date editor. IsConditional wins over IsCourtSet:
+  // they overlap (court-set ancestor without override produces both),
+  // and "abhängig von <parent>" is the clearer user-facing signal.
+  const parentLabel = (getLang() === "en"
+    ? (dl.parentRuleNameEN || dl.parentRuleName)
+    : dl.parentRuleName) || "";
+  let dateStr: string;
+  if (dl.isConditional) {
+    const chipText = parentLabel
+      ? tDyn("deadlines.conditional.depends_on").replace("{parent}", escHtml(parentLabel))
+      : t("deadlines.conditional.unset");
+    dateStr = `<span class="timeline-conditional frist-date-edit"${editAttrs}>${chipText}</span>`;
+  } else if (dl.isCourtSet) {
+    const courtLabelKey = dl.isCourtSetIndirect
+      ? "deadlines.court.indirect"
+      : "deadlines.court.set";
+    dateStr = `<span class="timeline-court-set frist-date-edit"${editAttrs}>${t(courtLabelKey)}</span>`;
+  } else {
+    dateStr = `<span class="timeline-date${overriddenClass} frist-date-edit"${editAttrs}>${formatDate(dl.dueDate)}</span>`;
+  }
 
-  // Slice 9 (t-paliad-195): the legacy boolean pair is gone — read
-  // priority directly. Optional badge fires only on 'optional'
-  // priority (RoP.151-style opt-in deadlines).
-  const mandatoryBadge = dl.priority === "optional"
-    ? '<span class="optional-badge">optional</span>'
+  // t-paliad-293 — iconified state markers. The card surface speaks
+  // "cut the tree of possibilities": each card carries 0–N small icons
+  // in the title row that summarise its decision state at a glance.
+  // The text "optional" badge that used to sit inline next to the name
+  // is now a ⊙ icon (state.optional). Hidden cards get a 👁⃠ eye-slash
+  // marker. Conditional cards already have the date-column chip; the
+  // marker is redundant in the title row. CCR-included / appellant
+  // picks remain on the chip row (event-card-choices-chip) — see below.
+  // Tooltips are i18n-driven so they read in the user's language.
+  const stateIcons: string[] = [];
+  if (dl.priority === "optional") {
+    stateIcons.push(
+      `<span class="timeline-state-icon timeline-state-icon--optional" role="img" aria-label="${escAttr(t("state.optional.tooltip"))}" title="${escAttr(t("state.optional.tooltip"))}">⊙</span>`,
+    );
+  }
+  if (dl.isHidden) {
+    stateIcons.push(
+      `<span class="timeline-state-icon timeline-state-icon--hidden" role="img" aria-label="${escAttr(t("state.hidden.tooltip"))}" title="${escAttr(t("state.hidden.tooltip"))}">👁⃠</span>`,
+    );
+  }
+  const stateIconsHtml = stateIcons.join("");
+
+  // t-paliad-265 — caret affordance + chip indicator when this rule
+  // offers per-card choices and the user has made a pick. The popover
+  // open/commit lifecycle lives in client/views/event-card-choices.ts;
+  // the data-* attributes here are the wire contract between the two.
+  //
+  // t-paliad-293 — hidden cards always expose the caret so the user
+  // can un-hide via the popover's "Wieder einblenden" entry. Normally
+  // a hidden card was hidden via a skip choice, so `choicesOffered.skip`
+  // is present. Defensive fallback: if a rule's `choices_offered` was
+  // edited away after the skip entry was saved, the user would lose
+  // the un-hide path entirely. Synthesize a `{skip:[true,false]}`
+  // offer for the popover in that edge case so the prominent
+  // "Wieder einblenden" button still renders.
+  const offeredForCaret = (dl.choicesOffered && Object.keys(dl.choicesOffered).length > 0)
+    ? dl.choicesOffered
+    : (dl.isHidden ? { skip: [true, false] } : null);
+  const showCaret = dl.code !== "" && offeredForCaret !== null;
+  const choicesHtml = showCaret
+    ? `<button type="button" class="event-card-choices-caret"
+         data-submission-code="${escAttr(dl.code)}"
+         data-choices-offered="${escAttr(JSON.stringify(offeredForCaret))}"
+         data-is-hidden="${dl.isHidden ? "1" : "0"}"
+         aria-label="${escAttr(t("choices.caret.title"))}"
+         title="${escAttr(t("choices.caret.title"))}">▾</button>`
     : "";
 
   const dlName = getLang() === "en" ? dl.nameEN : dl.name;
@@ -302,20 +487,40 @@ export function deadlineCardHtml(dl: CalculatedDeadline, opts: CardOpts): string
     ? `<span class="timeline-note-hint" tabindex="0" role="note" aria-label="${escAttr(noteText)}" title="${escAttr(noteText)}">ⓘ</span>`
     : "";
 
-  const meta = (opts.showParty || ruleRef || noteHint)
+  // Inline duration affordance (m/paliad#133, t-paliad-302). Only
+  // emitted when the "Dauern anzeigen" toggle is on AND the rule has a
+  // usable duration; the default-off hover-tooltip path is wired
+  // separately on the date span itself.
+  const showDurations = opts.showDurations === true;
+  const durationInline = showDurations && durationLabel
+    ? `<span class="timeline-duration">${escHtml(durationLabel)}</span>`
+    : "";
+
+  const meta = (opts.showParty || ruleRef || noteHint || durationInline)
     ? `<div class="timeline-meta">
         ${opts.showParty ? partyBadge(dl.party) : ""}
+        ${durationInline}
         ${ruleRef}
         ${noteHint}
       </div>`
     : "";
 
+  // Chip indicator surfaces the active per-card pick (t-paliad-265).
+  // The popover module rehydrates this on commit so it stays in sync.
+  const chipHtml = dl.code !== ""
+    ? `<span class="event-card-choices-chip"
+         data-submission-code="${escAttr(dl.code)}"
+         data-empty="true"></span>`
+    : "";
+
   return `<div class="timeline-item-header">
       <span class="timeline-name">
         ${dlName}
-        ${mandatoryBadge}
+        ${stateIconsHtml}
+        ${chipHtml}
       </span>
       ${dateStr}
+      ${choicesHtml}
     </div>
     ${meta}
     ${adjustedNote}
@@ -406,8 +611,20 @@ export function wireDateEditClicks(
 export function renderTimelineBody(data: DeadlineResponse, opts: CardOpts = { showParty: true }): string {
   let html = '<div class="timeline">';
   for (const dl of data.deadlines) {
+    const itemClasses = [
+      "timeline-item",
+      dl.isRootEvent ? "timeline-root" : "",
+      // t-paliad-290: re-surfaced hidden cards render faded via the
+      // shared timeline-item--hidden modifier (same modifier the columns
+      // view uses; see fr-col-item--hidden below).
+      dl.isHidden ? "timeline-item--hidden" : "",
+      // t-paliad-289: dotted-border + faded styling for conditional rows
+      // so the "abhängig von <parent>" state is visually distinct from
+      // both anchored deadlines and direct court-set rows.
+      dl.isConditional ? "timeline-item--conditional" : "",
+    ].filter(Boolean).join(" ");
     html += `
-      <div class="timeline-item ${dl.isRootEvent ? "timeline-root" : ""}">
+      <div class="${itemClasses}">
         <div class="timeline-dot-col">
           <div class="timeline-dot ${dl.isRootEvent ? "dot-root" : ""}"></div>
           <div class="timeline-line"></div>
@@ -460,6 +677,9 @@ type ColumnPosition = "ours" | "opponent";
 export interface ColumnsBodyOpts {
   editable?: boolean;
   showNotes?: boolean;
+  // Forwarded to deadlineCardHtml — see CardOpts.showDurations.
+  // (m/paliad#133, t-paliad-302)
+  showDurations?: boolean;
   // side: which side the user is on. Drives column placement;
   // does NOT filter rows. Default null = claimant-on-the-left
   // (i.e. "ours = claimant", legacy default).
@@ -532,11 +752,30 @@ export function bucketDeadlinesIntoColumns(
         row.court.push(dl);
         break;
       case "both":
-        if (appellantColumn !== null) {
+        // t-paliad-265: a per-card appellant set on a decision
+        // ancestor propagates as appellantContext on this rule. When
+        // present, it overrides the page-level appellant for the
+        // collapse decision on THIS row. Falls through to page-level
+        // when empty.
+        if (dl.appellantContext === "claimant" || dl.appellantContext === "defendant") {
+          const perCardCol = dl.appellantContext === "claimant" ? claimantColumn : defendantColumn;
+          row[perCardCol].push(dl);
+        } else if (appellantColumn !== null) {
           // Role-swap collapse: appellant initiated → both → one row
           // in appellant's column. Mirror suppressed.
           row[appellantColumn].push(dl);
+        } else if (userSide !== null) {
+          // Side picked but no appellant axis (first-instance Inf, Rev,
+          // …): the user has committed to a perspective, so the mirror
+          // is visual noise — the same card appears twice on the same
+          // row, once in "Unsere Seite" and once in "Gegnerseite".
+          // Collapse into ours; the "↔ beide Seiten" indicator on the
+          // card already conveys that the rule applies to both parties.
+          // (m/paliad#135 / t-paliad-304)
+          row.ours.push(dl);
         } else {
+          // No perspective picked → keep the legacy mirror so neither
+          // axis is privileged. Pinned by the "default (no opts)" test.
           row.ours.push(dl);
           row.opponent.push(dl);
         }
@@ -562,12 +801,23 @@ export function renderColumnsBody(data: DeadlineResponse, opts: ColumnsBodyOpts
   const rows = bucketDeadlinesIntoColumns(data.deadlines, { side: userSide, appellant: opts.appellant });
   const appellantPinned = opts.appellant === "claimant" || opts.appellant === "defendant";
 
-  const cardOpts: CardOpts = { showParty: false, editable: opts.editable, showNotes: opts.showNotes };
+  const cardOpts: CardOpts = {
+    showParty: false,
+    editable: opts.editable,
+    showNotes: opts.showNotes,
+    showDurations: opts.showDurations,
+  };
 
   // Collapsed "both" rows lose their mirror tag — there's no longer
   // a sibling row to mirror to, so the "↔ beide Seiten" hint would
-  // be misleading. Keep it for the legacy mirror path.
-  const showMirrorTag = !appellantPinned;
+  // be misleading. Both collapse paths suppress it:
+  //   - appellantPinned: role-swap collapse into appellant's column
+  //   - userSide !== null without appellantPinned: perspective-locked
+  //     collapse into ours (m/paliad#135 / t-paliad-304).
+  // Legacy mirror path (no side, no appellant) keeps the tag — both
+  // sibling rows still render so the tag has a visual referent.
+  const sideCollapse = userSide !== null;
+  const showMirrorTag = !appellantPinned && !sideCollapse;
 
   const renderCell = (items: CalculatedDeadline[]): string => {
     if (items.length === 0) {
@@ -578,7 +828,17 @@ export function renderColumnsBody(data: DeadlineResponse, opts: ColumnsBodyOpts
         const mirrorTag = showMirrorTag && dl.party === "both"
           ? `<div class="fr-col-mirror">↔ ${escHtml(t("deadlines.party.both.label"))}</div>`
           : "";
-        return `<div class="fr-col-item ${dl.isRootEvent ? "fr-col-root" : ""}">
+        const itemClasses = [
+          "fr-col-item",
+          dl.isRootEvent ? "fr-col-root" : "",
+          // t-paliad-290: re-surfaced hidden cards render faded via the
+          // shared fr-col-item--hidden modifier.
+          dl.isHidden ? "fr-col-item--hidden" : "",
+          // t-paliad-289: same conditional treatment as the linear
+          // timeline-item — dotted border + faded styling.
+          dl.isConditional ? "fr-col-item--conditional" : "",
+        ].filter(Boolean).join(" ");
+        return `<div class="${itemClasses}">
           ${deadlineCardHtml(dl, cardOpts)}
           ${mirrorTag}
         </div>`;
@@ -590,14 +850,29 @@ export function renderColumnsBody(data: DeadlineResponse, opts: ColumnsBodyOpts
   const headerCell = (label: string, cls: string) =>
     `<div class="fr-col-header ${cls}">${escHtml(label)}</div>`;
 
-  // Static labels — "Unsere Seite" is always the left column, regardless
-  // of which physical party (claimant vs defendant) occupies it. The
-  // bucketing primitive already routes the user's side into the `ours`
-  // bucket, so the header truth-fully describes the column contents.
+  // Column-header labels have two modes (m/paliad#127):
+  //   - side picked  → "Unsere Seite" / "Gegnerseite" (the columns
+  //                    truthfully describe whose filings sit there,
+  //                    because the bucketer routed the user's side into
+  //                    `ours`).
+  //   - side === null → "Proaktiv" / "Reaktiv" (semantic-neutral). The
+  //                    user-perspective labels would lie here: we don't
+  //                    know yet which party is "us", so calling the left
+  //                    column "Unsere Seite" presumes a pick the user
+  //                    hasn't made. The neutral Proaktiv/Reaktiv pair
+  //                    keeps the spatial axis ("who initiates vs who
+  //                    responds") legible while the hint chip on the
+  //                    page nudges the user to pick a side.
+  //
+  // Note: the COLUMN PROJECTION does not change — the bucketing primitive
+  // still routes claimant→left, defendant→right when side=null (legacy
+  // claimant-on-the-left fallback). Only the HEADER label changes.
+  const leftLabel = userSide === null ? t("deadlines.col.proactive") : t("deadlines.col.ours");
+  const rightLabel = userSide === null ? t("deadlines.col.reactive") : t("deadlines.col.opponent");
   let html = '<div class="fr-columns-view">';
-  html += headerCell(t("deadlines.col.ours"), "fr-col-ours");
+  html += headerCell(leftLabel, "fr-col-ours");
   html += headerCell(t("deadlines.col.court"), "fr-col-court");
-  html += headerCell(t("deadlines.col.opponent"), "fr-col-opponent");
+  html += headerCell(rightLabel, "fr-col-opponent");
 
   for (const row of rows) {
     html += renderCell(row.ours);
@@ -625,6 +900,12 @@ export async function calculateDeadlines(params: CalcParams): Promise<DeadlineRe
           ? params.anchorOverrides
           : undefined,
         courtId: params.courtId || undefined,
+        projectId: params.projectId || undefined,
+        perCardChoices: params.perCardChoices && params.perCardChoices.length > 0
+          ? params.perCardChoices
+          : undefined,
+        includeHidden: params.includeHidden ? true : undefined,
+        appealTarget: params.appealTarget || undefined,
       }),
     });
     if (!resp.ok) {

frontend/src/components/Sidebar.tsx

@@ -205,7 +205,6 @@ export function Sidebar({ currentPath, authenticated = true }: SidebarProps): st
             {navItem("/admin/partner-units", ICON_BUILDING, "nav.admin.partner_units", "Partner Units", currentPath)}
             {navItem("/admin/event-types", ICON_TABLE, "nav.admin.event_types", "Event-Typen", currentPath)}
             {navItem("/admin/rules", ICON_BOOK, "nav.admin.rules", "Regeln verwalten", currentPath)}
-            {navItem("/admin/rules/export", ICON_DOWNLOAD, "nav.admin.rules_export", "Regel-Migrations", currentPath)}
             {navItem("/admin/audit-log", ICON_AUDIT_LOG, "nav.admin.audit", "Audit-Log", currentPath)}
             {navItem("/admin/backups", ICON_DOWNLOAD, "nav.admin.backups", "Backups", currentPath)}
             {/* Paliadin Monitor — owner-only sub-entry; revealed by sidebar.ts together with the /paliadin link. */}

frontend/src/i18n-keys.ts

@@ -290,6 +290,15 @@ export type I18nKey =
   | "admin.partner_units.new.heading"
   | "admin.partner_units.subtitle"
   | "admin.partner_units.title"
+  | "admin.procedural_events.col.code"
+  | "admin.procedural_events.edit.breadcrumb"
+  | "admin.procedural_events.edit.field.code"
+  | "admin.procedural_events.edit.field.event_kind"
+  | "admin.procedural_events.edit.field.parent"
+  | "admin.procedural_events.edit.title"
+  | "admin.procedural_events.list.heading"
+  | "admin.procedural_events.list.new"
+  | "admin.procedural_events.list.title"
   | "admin.rules.col.legal_citation"
   | "admin.rules.col.lifecycle"
   | "admin.rules.col.modified"
@@ -392,22 +401,6 @@ export type I18nKey =
   | "admin.rules.edit.title"
   | "admin.rules.empty"
   | "admin.rules.error.load"
-  | "admin.rules.export.breadcrumb"
-  | "admin.rules.export.copied"
-  | "admin.rules.export.copy"
-  | "admin.rules.export.copy_failed"
-  | "admin.rules.export.count"
-  | "admin.rules.export.download"
-  | "admin.rules.export.error"
-  | "admin.rules.export.field.since"
-  | "admin.rules.export.heading"
-  | "admin.rules.export.latest"
-  | "admin.rules.export.no_pending"
-  | "admin.rules.export.ok"
-  | "admin.rules.export.run"
-  | "admin.rules.export.running"
-  | "admin.rules.export.subtitle"
-  | "admin.rules.export.title"
   | "admin.rules.filter.lifecycle"
   | "admin.rules.filter.lifecycle.any"
   | "admin.rules.filter.proceeding"
@@ -419,7 +412,6 @@ export type I18nKey =
   | "admin.rules.lifecycle.archived"
   | "admin.rules.lifecycle.draft"
   | "admin.rules.lifecycle.published"
-  | "admin.rules.list.export"
   | "admin.rules.list.heading"
   | "admin.rules.list.new"
   | "admin.rules.list.subtitle"
@@ -999,6 +991,26 @@ export type I18nKey =
   | "checklisten.tab.mine"
   | "checklisten.tab.templates"
   | "checklisten.title"
+  | "choices.appellant.both"
+  | "choices.appellant.chip"
+  | "choices.appellant.claimant"
+  | "choices.appellant.defendant"
+  | "choices.appellant.none"
+  | "choices.appellant.title"
+  | "choices.caret.title"
+  | "choices.commit.error"
+  | "choices.include_ccr.chip"
+  | "choices.include_ccr.false"
+  | "choices.include_ccr.title"
+  | "choices.include_ccr.true"
+  | "choices.reset"
+  | "choices.show_hidden.count"
+  | "choices.show_hidden.label"
+  | "choices.skip.false"
+  | "choices.skip.title"
+  | "choices.skip.true"
+  | "choices.skipped.chip"
+  | "choices.unhide.chip"
   | "common.cancel"
   | "common.close"
   | "common.forbidden"
@@ -1172,10 +1184,12 @@ export type I18nKey =
   | "deadlines.adjusted.weekend"
   | "deadlines.adjusted.weekend.saturday"
   | "deadlines.adjusted.weekend.sunday"
-  | "deadlines.appellant.claimant"
-  | "deadlines.appellant.defendant"
-  | "deadlines.appellant.label"
-  | "deadlines.appellant.none"
+  | "deadlines.appeal_target.anordnung"
+  | "deadlines.appeal_target.bucheinsicht"
+  | "deadlines.appeal_target.endentscheidung"
+  | "deadlines.appeal_target.kostenentscheidung"
+  | "deadlines.appeal_target.label"
+  | "deadlines.appeal_target.schadensbemessung"
   | "deadlines.calculate"
   | "deadlines.card.calc.add_to_project"
   | "deadlines.card.calc.add_to_project.disabled"
@@ -1204,11 +1218,15 @@ export type I18nKey =
   | "deadlines.col.event_type"
   | "deadlines.col.opponent"
   | "deadlines.col.ours"
+  | "deadlines.col.proactive"
+  | "deadlines.col.reactive"
   | "deadlines.col.rule"
   | "deadlines.col.status"
   | "deadlines.col.title"
   | "deadlines.complete.action"
   | "deadlines.complete.confirm"
+  | "deadlines.conditional.depends_on"
+  | "deadlines.conditional.unset"
   | "deadlines.court.indirect"
   | "deadlines.court.label"
   | "deadlines.court.set"
@@ -1246,6 +1264,7 @@ export type I18nKey =
   | "deadlines.dpma.appeal.bgh"
   | "deadlines.dpma.appeal.bpatg"
   | "deadlines.dpma.opp.dpma"
+  | "deadlines.durations.show"
   | "deadlines.empty.filtered"
   | "deadlines.empty.hint"
   | "deadlines.empty.title"
@@ -1434,10 +1453,13 @@ export type I18nKey =
   | "deadlines.search.placeholder"
   | "deadlines.search.results.count"
   | "deadlines.search.results.count_one"
-  | "deadlines.side.both"
   | "deadlines.side.claimant"
   | "deadlines.side.defendant"
+  | "deadlines.side.from_project"
+  | "deadlines.side.hint"
   | "deadlines.side.label"
+  | "deadlines.side.override"
+  | "deadlines.side.undefined"
   | "deadlines.source.caldav"
   | "deadlines.source.fristenrechner"
   | "deadlines.source.imported"
@@ -1468,6 +1490,7 @@ export type I18nKey =
   | "deadlines.step2.happened.desc"
   | "deadlines.step2.happened.title"
   | "deadlines.step2.heading"
+  | "deadlines.step2.perspective"
   | "deadlines.step3"
   | "deadlines.step3a.back"
   | "deadlines.step3a.draft.desc"
@@ -1494,6 +1517,7 @@ export type I18nKey =
   | "deadlines.upc.apl.cost"
   | "deadlines.upc.apl.merits"
   | "deadlines.upc.apl.order"
+  | "deadlines.upc.apl.unified"
   | "deadlines.upc.ccr.cfi"
   | "deadlines.upc.disc.cfi"
   | "deadlines.upc.dmgs.cfi"
@@ -1604,6 +1628,7 @@ export type I18nKey =
   | "event.title.appointment_deleted"
   | "event.title.appointment_project_changed"
   | "event.title.appointment_updated"
+  | "event.title.approval_decided"
   | "event.title.checklist_created"
   | "event.title.checklist_deleted"
   | "event.title.checklist_linked"
@@ -1622,6 +1647,7 @@ export type I18nKey =
   | "event.title.deadline_reopened"
   | "event.title.deadline_updated"
   | "event.title.deadlines_imported"
+  | "event.title.member_role_changed"
   | "event.title.note_created"
   | "event.title.our_side_changed"
   | "event.title.project_archived"
@@ -1955,7 +1981,6 @@ export type I18nKey =
   | "nav.admin.paliadin"
   | "nav.admin.partner_units"
   | "nav.admin.rules"
-  | "nav.admin.rules_export"
   | "nav.admin.team"
   | "nav.agenda"
   | "nav.akten"
@@ -2584,13 +2609,22 @@ export type I18nKey =
   | "search.no_results"
   | "search.placeholder"
   | "sidebar.resize.title"
+  | "state.hidden.tooltip"
+  | "state.optional.tooltip"
   | "submissions.draft.action.delete"
   | "submissions.draft.action.export"
   | "submissions.draft.action.new"
   | "submissions.draft.back"
+  | "submissions.draft.import.button"
+  | "submissions.draft.language"
+  | "submissions.draft.language.de"
+  | "submissions.draft.language.en"
+  | "submissions.draft.language.fallback_notice"
   | "submissions.draft.loading"
   | "submissions.draft.name.placeholder"
   | "submissions.draft.notfound"
+  | "submissions.draft.parties.hint"
+  | "submissions.draft.parties.title"
   | "submissions.draft.preview.hint"
   | "submissions.draft.preview.title"
   | "submissions.draft.switcher.label"

frontend/src/submission-draft.tsx

@@ -109,8 +109,96 @@ export function renderSubmissionDraft(): string {
                       </button>
                     </div>
 
+                    {/* t-paliad-276 — output language toggle (DE/EN).
+                        Hydrated by client/submission-draft.ts; switching
+                        autosaves the draft and re-renders the preview. */}
+                    <div
+                      className="submission-draft-language-row"
+                      id="submission-draft-language-row"
+                      role="radiogroup"
+                      aria-labelledby="submission-draft-language-label">
+                      <span
+                        id="submission-draft-language-label"
+                        className="submission-draft-language-label"
+                        data-i18n="submissions.draft.language">
+                        Sprache
+                      </span>
+                      <label className="submission-draft-language-option">
+                        <input
+                          type="radio"
+                          name="submission-draft-language"
+                          value="de"
+                          id="submission-draft-language-de"
+                        />
+                        <span data-i18n="submissions.draft.language.de">DE</span>
+                      </label>
+                      <label className="submission-draft-language-option">
+                        <input
+                          type="radio"
+                          name="submission-draft-language"
+                          value="en"
+                          id="submission-draft-language-en"
+                        />
+                        <span data-i18n="submissions.draft.language.en">EN</span>
+                      </label>
+                    </div>
+                    <p
+                      className="submission-draft-language-fallback"
+                      id="submission-draft-language-fallback"
+                      style="display:none"
+                      data-i18n="submissions.draft.language.fallback_notice">
+                      Fallback: universelles Skelett (keine sprachspezifische Vorlage).
+                    </p>
+
                     <p className="submission-draft-savestatus" id="submission-draft-savestatus" />
 
+                    {/* t-paliad-277: "Aus Projekt importieren" + last-
+                        imported-at timestamp. Only visible when the
+                        draft has a project_id attached. */}
+                    <div
+                      id="submission-draft-import-row"
+                      className="submission-draft-import-row"
+                      style="display:none">
+                      <button
+                        type="button"
+                        id="submission-draft-import-btn"
+                        className="btn-small btn-secondary"
+                        data-i18n="submissions.draft.import.button">
+                        Aus Projekt importieren
+                      </button>
+                      <span
+                        id="submission-draft-import-stamp"
+                        className="submission-draft-import-stamp"
+                      />
+                    </div>
+
+                    {/* t-paliad-277 / t-paliad-287: multi-select party
+                        picker plus per-side Add-Party affordance.
+                        Populated from view.available_parties; checkbox
+                        per party, grouped by role. Hidden when no
+                        project is attached; visible even on empty
+                        rosters so the lawyer can use Add Party to
+                        populate. */}
+                    <div
+                      id="submission-draft-parties"
+                      className="submission-draft-parties"
+                      style="display:none">
+                      <h3
+                        className="submission-draft-var-group-title"
+                        data-i18n="submissions.draft.parties.title">
+                        Parteien
+                      </h3>
+                      <p
+                        className="submission-draft-parties-hint"
+                        data-i18n="submissions.draft.parties.hint">
+                        Wählen Sie aus, welche Parteien im Schriftsatz genannt werden sollen.
+                      </p>
+                      <div
+                        id="submission-draft-parties-list"
+                        className="submission-draft-parties-list"
+                      />
+                    </div>
+
                     <div className="submission-draft-variables" id="submission-draft-variables" />
                   </aside>
 

frontend/src/verfahrensablauf.tsx

@@ -28,16 +28,20 @@ function proceedingBtn(p: ProceedingDef): string {
   );
 }
 
+// Slice B1 (m/paliad#124 §18.1): the 3 separate Berufung tiles
+// (upc.apl.merits / upc.apl.cost / upc.apl.order) collapse into ONE
+// unified "Berufung" tile (upc.apl). After picking it, the user
+// selects which decision the appeal is directed AT via the
+// .appeal-target-row chip group below — the engine then filters
+// rules whose applies_to_target contains the picked slug.
 const UPC_TYPES: ProceedingDef[] = [
   { code: "upc.inf.cfi",    i18nKey: "deadlines.upc.inf.cfi",    name: "Verletzungsverfahren" },
   { code: "upc.rev.cfi",    i18nKey: "deadlines.upc.rev.cfi",    name: "Nichtigkeitsklage" },
   { code: "upc.ccr.cfi",    i18nKey: "deadlines.upc.ccr.cfi",    name: "Widerklage auf Nichtigkeit" },
   { code: "upc.pi.cfi",     i18nKey: "deadlines.upc.pi.cfi",     name: "Einstw. Maßnahmen" },
-  { code: "upc.apl.merits", i18nKey: "deadlines.upc.apl.merits", name: "Berufung" },
+  { code: "upc.apl.unified", i18nKey: "deadlines.upc.apl.unified", name: "Berufung" },
   { code: "upc.dmgs.cfi",   i18nKey: "deadlines.upc.dmgs.cfi",   name: "Schadensbemessung" },
   { code: "upc.disc.cfi",   i18nKey: "deadlines.upc.disc.cfi",   name: "Bucheinsicht" },
-  { code: "upc.apl.cost",   i18nKey: "deadlines.upc.apl.cost",   name: "Berufung Kosten" },
-  { code: "upc.apl.order",  i18nKey: "deadlines.upc.apl.order",  name: "Berufung Anordnungen" },
 ];
 
 // DE proceedings split by type (Verletzung / Nichtigkeit) per m's
@@ -158,9 +162,114 @@ export function renderVerfahrensablauf(): string {
                 <div className="wizard-step" id="step-2" style="display:none">
                   <h3 className="wizard-step-label">
                     <span className="step-number">2</span>
-                    <span data-i18n="deadlines.step2">Ausgangsdatum eingeben</span>
+                    <span data-i18n="deadlines.step2.perspective">Perspektive und Datum</span>
                   </h3>
 
+                  {/* Perspective strip (t-paliad-250 / m/paliad#81, reordered
+                       in t-paliad-279 / m/paliad#111). Side defines whose
+                       perspective the columns project; appellant collapses
+                       party=both rows for role-swap proceedings (Appeal etc.).
+                       Moved above .date-input-group because party-side is the
+                       most-defining input after proceeding-type — without
+                       side, the column labels can't pick "your filings". Both
+                       selectors are URL-driven (?side= + ?appellant=) so the
+                       perspective survives reload and is shareable.
+
+                       When the page is opened with ?project=<id> and that
+                       project's our_side is set, side-row renders as a
+                       read-only chip with an "Andere Seite wählen" override
+                       link — see client/verfahrensablauf.ts. */}
+                  <div className="verfahrensablauf-perspective" id="verfahrensablauf-perspective">
+                    <div className="verfahrensablauf-perspective-row" id="side-row">
+                      <span className="date-label" data-i18n="deadlines.side.label">Seite:</span>
+                      <div className="side-radio-cluster" id="side-radio-cluster">
+                        <div className="fristen-view-toggle" role="radiogroup" aria-label="Side">
+                          <label className="fristen-view-option">
+                            <input type="radio" name="side" value="claimant" />
+                            <span data-i18n="deadlines.side.claimant">Klägerseite</span>
+                          </label>
+                          <label className="fristen-view-option">
+                            <input type="radio" name="side" value="defendant" />
+                            <span data-i18n="deadlines.side.defendant">Beklagtenseite</span>
+                          </label>
+                          <label className="fristen-view-option">
+                            <input type="radio" name="side" value="" checked />
+                            <span data-i18n="deadlines.side.undefined">Nicht festgelegt</span>
+                          </label>
+                        </div>
+                        {/* Prompt shown while the user hasn't picked a side
+                            (m/paliad#120). Hidden by client when side is
+                            claimant or defendant. Both columns still
+                            render every rule in this state — picking a
+                            side just focuses the user's column. */}
+                        <span className="side-hint" id="side-hint"
+                              data-i18n="deadlines.side.hint">
+                          W&auml;hlen Sie eine Seite, um die Spalten zu fokussieren.
+                        </span>
+                      </div>
+                      {/* Auto-fill chip — populated by the client when a
+                          ?project=<id> URL resolves a project with our_side
+                          set. Hidden by default; the radio cluster above is
+                          hidden whenever this chip is shown. */}
+                      <div className="side-chip" id="side-chip" style="display:none">
+                        <span className="side-chip-tag" data-i18n="deadlines.side.from_project">Aus Akte:</span>
+                        <strong className="side-chip-value" id="side-chip-value">&mdash;</strong>
+                        <button type="button" className="side-chip-override" id="side-chip-override"
+                                data-i18n="deadlines.side.override">
+                          Andere Seite w&auml;hlen
+                        </button>
+                      </div>
+                    </div>
+                    {/* Appeal-target chip row (Slice B1 / m/paliad#124 §18.1).
+                         Shown only when the unified upc.apl Berufung tile is
+                         selected; lets the user narrow the timeline to the
+                         rules whose applies_to_target contains the picked
+                         decision kind. URL state ?target=<slug>. */}
+                    <div className="verfahrensablauf-perspective-row" id="appeal-target-row" style="display:none">
+                      <span className="date-label" data-i18n="deadlines.appeal_target.label">Worauf richtet sich die Berufung?</span>
+                      <div className="fristen-view-toggle" role="radiogroup" aria-label="Appeal target">
+                        <label className="fristen-view-option">
+                          <input type="radio" name="appeal-target" value="endentscheidung" checked />
+                          <span data-i18n="deadlines.appeal_target.endentscheidung">Endentscheidung</span>
+                        </label>
+                        <label className="fristen-view-option">
+                          <input type="radio" name="appeal-target" value="kostenentscheidung" />
+                          <span data-i18n="deadlines.appeal_target.kostenentscheidung">Kostenentscheidung</span>
+                        </label>
+                        <label className="fristen-view-option">
+                          <input type="radio" name="appeal-target" value="anordnung" />
+                          <span data-i18n="deadlines.appeal_target.anordnung">Anordnung</span>
+                        </label>
+                        <label className="fristen-view-option">
+                          <input type="radio" name="appeal-target" value="schadensbemessung" />
+                          <span data-i18n="deadlines.appeal_target.schadensbemessung">Schadensbemessung</span>
+                        </label>
+                        <label className="fristen-view-option">
+                          <input type="radio" name="appeal-target" value="bucheinsicht" />
+                          <span data-i18n="deadlines.appeal_target.bucheinsicht">Bucheinsicht</span>
+                        </label>
+                      </div>
+                    </div>
+                    {/* Show-hidden toggle (t-paliad-290 / m/paliad#122).
+                         Re-surfaces optional cards the user has previously
+                         marked "Überspringen" via the per-card popover.
+                         The row hides itself when the projection has no
+                         hidden cards (handled in client/verfahrensablauf.ts).
+                         Default OFF; URL state ?show_hidden=1. */}
+                    <div className="verfahrensablauf-perspective-row" id="show-hidden-row" style="display:none">
+                      <label className="fristen-view-option">
+                        <input type="checkbox" id="show-hidden-toggle" />
+                        <span data-i18n="choices.show_hidden.label">Ausgeblendete anzeigen</span>
+                      </label>
+                      <span className="show-hidden-count" id="show-hidden-count" aria-live="polite">&nbsp;</span>
+                    </div>
+                  </div>
+
+                  {/* Visual divider — keeps the perspective block (most-
+                       defining inputs after proceeding-type) optically
+                       separate from the date / court / flag knobs below. */}
+                  <div className="verfahrensablauf-step2-divider" aria-hidden="true"></div>
+
                   <div className="date-input-group">
                     <div className="date-field-row">
                       {/* Read-only caption labelling the value <span>. Not a
@@ -210,53 +319,6 @@ export function renderVerfahrensablauf(): string {
                       Fristen berechnen
                     </button>
                   </div>
-
-                  {/* Perspective strip (t-paliad-250 / m/paliad#81). Side
-                       swaps the column LABELS so the user's own side is
-                       proactive (= "your filings"). Appellant collapses
-                       party=both rows to a single column when set — only
-                       relevant for role-swap proceedings (Appeal etc.);
-                       the row hides itself when the picked proceeding has
-                       no appellant axis (see hasAppellantAxis() in the
-                       client). Both selectors are URL-driven (?side= +
-                       ?appellant=) so the perspective survives reload
-                       and is shareable. */}
-                  <div className="verfahrensablauf-perspective" id="verfahrensablauf-perspective">
-                    <div className="verfahrensablauf-perspective-row" id="side-row">
-                      <span className="date-label" data-i18n="deadlines.side.label">Seite:</span>
-                      <div className="fristen-view-toggle" role="radiogroup" aria-label="Side">
-                        <label className="fristen-view-option">
-                          <input type="radio" name="side" value="claimant" />
-                          <span data-i18n="deadlines.side.claimant">Klägerseite</span>
-                        </label>
-                        <label className="fristen-view-option">
-                          <input type="radio" name="side" value="defendant" />
-                          <span data-i18n="deadlines.side.defendant">Beklagtenseite</span>
-                        </label>
-                        <label className="fristen-view-option">
-                          <input type="radio" name="side" value="" checked />
-                          <span data-i18n="deadlines.side.both">Beide</span>
-                        </label>
-                      </div>
-                    </div>
-                    <div className="verfahrensablauf-perspective-row" id="appellant-row" style="display:none">
-                      <span className="date-label" data-i18n="deadlines.appellant.label">Berufung durch:</span>
-                      <div className="fristen-view-toggle" role="radiogroup" aria-label="Appellant">
-                        <label className="fristen-view-option">
-                          <input type="radio" name="appellant" value="claimant" />
-                          <span data-i18n="deadlines.appellant.claimant">Klägerseite</span>
-                        </label>
-                        <label className="fristen-view-option">
-                          <input type="radio" name="appellant" value="defendant" />
-                          <span data-i18n="deadlines.appellant.defendant">Beklagtenseite</span>
-                        </label>
-                        <label className="fristen-view-option">
-                          <input type="radio" name="appellant" value="" checked />
-                          <span data-i18n="deadlines.appellant.none">—</span>
-                        </label>
-                      </div>
-                    </div>
-                  </div>
                 </div>
 
                 <div className="wizard-step" id="step-3" style="display:none">
@@ -279,6 +341,13 @@ export function renderVerfahrensablauf(): string {
                       <input type="checkbox" id="fristen-notes-show" />
                       <span data-i18n="deadlines.notes.show">Hinweise anzeigen</span>
                     </label>
+                    {/* Durations toggle (m/paliad#133, t-paliad-302).
+                         Default off — hover-tooltips on date spans are
+                         the always-on path. */}
+                    <label className="fristen-notes-option">
+                      <input type="checkbox" id="verfahrensablauf-durations-show" />
+                      <span data-i18n="deadlines.durations.show">Dauern anzeigen</span>
+                    </label>
                   </div>
 
                   <div id="timeline-container">

internal/db/migrate_test.go

@@ -116,6 +116,57 @@ func TestMigrations_DryRun(t *testing.T) {
 	}
 }
 
+// TestMigrations_NoDuplicateSlot is a free-standing pre-flight check that
+// scanEmbeddedMigrations refuses to walk a tree where two *.up.sql files
+// claim the same NNN slot. This is the brunel-slot-collision class of
+// outage (m/paliad#114, 2026-05-25 ~13:20): a worker writes a migration
+// at slot N while another shipped slot N from a separate branch, both
+// merge, both end up in the embed.FS, and the runner refuses to start.
+//
+// Catching this at CI time (no DB needed) lets the second PR fail before
+// it merges, instead of breaking prod at the next deploy. Pure unit test;
+// runs even on developer laptops that don't set TEST_DATABASE_URL.
+func TestMigrations_NoDuplicateSlot(t *testing.T) {
+	if _, err := scanEmbeddedMigrations(); err != nil {
+		t.Fatalf("scanEmbeddedMigrations: %v "+
+			"(two migrations share the same NNN slot — coordinate with head "+
+			"and rename one of them before merging)", err)
+	}
+}
+
+// TestMigrations_EndToEndAsAppRole applies every embedded migration in
+// numeric order against a scratch DB connected as a NON-SUPERUSER role.
+// This is the prod-shape smoke that the per-mig BEGIN/ROLLBACK dry-run
+// (TestMigrations_DryRun) cannot deliver: the dry-run runs each
+// statement in isolation and rolls back, so it cannot reproduce the
+// mig-129-class outage (m/paliad#114, 2026-05-25 ~14:56 — pq: must be
+// owner of table project_event_choices, SQLSTATE 42501) where a
+// migration assumes ownership the deploy role doesn't have.
+//
+// Requires TEST_APP_DATABASE_URL — a Postgres URL whose role is NOT a
+// superuser and does NOT own the `paliad` schema (m's Q11.2 pick:
+// generic two-role model, see docs/design-cicd-pre-deploy-gate-2026-05-25.md
+// §6.2(a)). The CI workflow creates the role + schema split before
+// invoking the test; a developer who wants to reproduce the gate locally
+// runs the same SQL preamble (see Makefile target `verify-migrations`).
+//
+// Skipped without TEST_APP_DATABASE_URL — keeps `go test ./...` green
+// on machines that haven't set up the role split.
+func TestMigrations_EndToEndAsAppRole(t *testing.T) {
+	url := os.Getenv("TEST_APP_DATABASE_URL")
+	if url == "" {
+		t.Skip("TEST_APP_DATABASE_URL not set — skipping role-split end-to-end migration smoke")
+	}
+	if err := ApplyMigrations(url); err != nil {
+		t.Fatalf("ApplyMigrations as app role failed: %v "+
+			"(a migration assumes more privilege than the deploy role has — "+
+			"common cases: ALTER TABLE on a schema-owner table, CREATE EXTENSION "+
+			"without grants, SET ROLE without permission. Fix the migration to "+
+			"work as the deploy role, or arrange for the schema to be owned by "+
+			"the deploy role)", err)
+	}
+}
+
 // readAppliedVersions returns the set of versions present in
 // paliad.applied_migrations on the scratch DB. Missing table → empty set
 // (fresh-DB path; the table only exists after the runner has been called).

internal/db/migration_136_test.go

@@ -0,0 +1,134 @@
+// Slice B.1 (t-paliad-273) — migration 136 backfill invariants.
+//
+// The dry-run gate (migrate_test.go: TestMigrations_DryRun) catches
+// migrations that crash on apply, but it rolls back inside its own
+// transaction — the post-state assertions in mig 136's PL/pgSQL block
+// run, but a future refactor of those assertions might forget a check
+// or introduce a silent count drift. This test layers a Go-side
+// invariant check on top so the contract is restated in test code,
+// outside the PL/pgSQL block, against the resulting tables.
+//
+// Skipped without TEST_DATABASE_URL, same pattern as
+// internal/services/submission_codes_shape_test.go.
+
+package db
+
+import (
+	"context"
+	"database/sql"
+	"os"
+	"testing"
+
+	_ "github.com/lib/pq"
+)
+
+// TestMigration136_BackfillInvariants applies every embedded migration
+// (which lands mig 136 along the way) and then asserts the four
+// invariants the B.1 design + B.0 findings nailed down:
+//
+//  1. procedural_events row count = (distinct submission_codes in
+//     deadline_rules) + (deadline_rules with NULL submission_code).
+//     Codes-bearing branch is 1:1 per the B.0 audit (no multi-row
+//     codes since the _archived_litigation.* removal); the NULL
+//     branch gets one synthetic procedural_event per rule.
+//  2. sequencing_rules row count = deadline_rules row count (1:1).
+//  3. legal_sources row count = distinct legal_source in
+//     deadline_rules (NULL excluded).
+//  4. every sequencing_rules row's procedural_event_id resolves to a
+//     procedural_events row (NOT NULL FK already enforces this at the
+//     DB level — this test catches a future relaxation of the FK).
+//  5. no two synthetic codes collide (covered by the UNIQUE on
+//     procedural_events.code; restated here for documentation).
+//
+// The test is robust against corpus size — it derives all expected
+// counts from the live deadline_rules state, so a scratch DB with 0
+// rules trivially passes, and a prod-shaped scratch DB exercises the
+// real invariants.
+func TestMigration136_BackfillInvariants(t *testing.T) {
+	url := os.Getenv("TEST_DATABASE_URL")
+	if url == "" {
+		t.Skip("TEST_DATABASE_URL not set — skipping mig 136 invariant test")
+	}
+	if err := ApplyMigrations(url); err != nil {
+		t.Fatalf("apply migrations: %v", err)
+	}
+
+	conn, err := sql.Open("postgres", url)
+	if err != nil {
+		t.Fatalf("open: %v", err)
+	}
+	defer conn.Close()
+	ctx := context.Background()
+
+	var (
+		drTotal, drCodesDistinct, drCodesNull, drLegalDistinct int
+		peTotal, srTotal, lsTotal                              int
+		orphanPE, dupSynthetic                                 int
+	)
+
+	mustQ := func(label, q string, dst *int) {
+		t.Helper()
+		if err := conn.QueryRowContext(ctx, q).Scan(dst); err != nil {
+			t.Fatalf("%s: %v", label, err)
+		}
+	}
+
+	mustQ("dr_total", `SELECT COUNT(*) FROM paliad.deadline_rules`, &drTotal)
+	mustQ("dr_codes_distinct",
+		`SELECT COUNT(DISTINCT submission_code) FROM paliad.deadline_rules WHERE submission_code IS NOT NULL`,
+		&drCodesDistinct)
+	mustQ("dr_codes_null",
+		`SELECT COUNT(*) FROM paliad.deadline_rules WHERE submission_code IS NULL`,
+		&drCodesNull)
+	mustQ("dr_legal_distinct",
+		`SELECT COUNT(DISTINCT legal_source) FROM paliad.deadline_rules WHERE legal_source IS NOT NULL`,
+		&drLegalDistinct)
+	mustQ("pe_total", `SELECT COUNT(*) FROM paliad.procedural_events`, &peTotal)
+	mustQ("sr_total", `SELECT COUNT(*) FROM paliad.sequencing_rules`, &srTotal)
+	mustQ("ls_total", `SELECT COUNT(*) FROM paliad.legal_sources`, &lsTotal)
+
+	// Invariant 1: procedural_events = distinct_codes + null_codes
+	wantPE := drCodesDistinct + drCodesNull
+	if peTotal != wantPE {
+		t.Errorf("procedural_events count mismatch: got %d, want %d (distinct codes=%d + null-code rules=%d)",
+			peTotal, wantPE, drCodesDistinct, drCodesNull)
+	}
+
+	// Invariant 2: sequencing_rules 1:1 with deadline_rules
+	if srTotal != drTotal {
+		t.Errorf("sequencing_rules count mismatch: got %d, want %d (1:1 with deadline_rules)",
+			srTotal, drTotal)
+	}
+
+	// Invariant 3: legal_sources = distinct legal_source
+	if lsTotal != drLegalDistinct {
+		t.Errorf("legal_sources count mismatch: got %d, want %d (distinct legal_source)",
+			lsTotal, drLegalDistinct)
+	}
+
+	// Invariant 4: every sequencing_rules.procedural_event_id resolves
+	mustQ("orphan_pe", `
+		SELECT COUNT(*)
+		  FROM paliad.sequencing_rules sr
+		  LEFT JOIN paliad.procedural_events pe ON pe.id = sr.procedural_event_id
+		 WHERE pe.id IS NULL`, &orphanPE)
+	if orphanPE != 0 {
+		t.Errorf("FK integrity violated: %d sequencing_rules row(s) have no resolving procedural_event_id", orphanPE)
+	}
+
+	// Invariant 5: no duplicate synthetic codes
+	mustQ("dup_synthetic", `
+		SELECT COUNT(*) FROM (
+			SELECT code FROM paliad.procedural_events
+			 WHERE code LIKE 'null.%'
+			 GROUP BY code
+			HAVING COUNT(*) > 1
+		) d`, &dupSynthetic)
+	if dupSynthetic != 0 {
+		t.Errorf("synthetic code uniqueness violated: %d duplicate(s) under 'null.%%' prefix", dupSynthetic)
+	}
+
+	t.Logf("mig 136 invariants OK: deadline_rules=%d, procedural_events=%d (=%d+%d), "+
+		"sequencing_rules=%d, legal_sources=%d (distinct legal_source=%d)",
+		drTotal, peTotal, drCodesDistinct, drCodesNull, srTotal, lsTotal, drLegalDistinct)
+}

internal/db/migrations/024_rename_department_columns.up.sql

@@ -26,24 +26,24 @@ DO $$ BEGIN ALTER TABLE paliad.department_members RENAME COLUMN dezernat_id TO d
 -- Constraints (primary key + foreign keys + check). Renaming a pkey
 -- constraint also renames the underlying index of the same name.
 -- ---------------------------------------------------------------------------
-DO $$ BEGIN ALTER TABLE paliad.departments        RENAME CONSTRAINT dezernate_pkey                          TO departments_pkey;                       EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.departments        RENAME CONSTRAINT dezernate_lead_user_id_fkey             TO departments_lead_user_id_fkey;          EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.departments        RENAME CONSTRAINT dezernate_office_check                  TO departments_office_check;               EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.department_members RENAME CONSTRAINT dezernat_mitglieder_pkey                 TO department_members_pkey;                EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.department_members RENAME CONSTRAINT dezernat_mitglieder_dezernat_id_fkey     TO department_members_department_id_fkey;  EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.department_members RENAME CONSTRAINT dezernat_mitglieder_user_id_fkey         TO department_members_user_id_fkey;        EXCEPTION WHEN undefined_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.departments        RENAME CONSTRAINT dezernate_pkey                          TO departments_pkey;                       EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.departments        RENAME CONSTRAINT dezernate_lead_user_id_fkey             TO departments_lead_user_id_fkey;          EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.departments        RENAME CONSTRAINT dezernate_office_check                  TO departments_office_check;               EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.department_members RENAME CONSTRAINT dezernat_mitglieder_pkey                 TO department_members_pkey;                EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.department_members RENAME CONSTRAINT dezernat_mitglieder_dezernat_id_fkey     TO department_members_department_id_fkey;  EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.department_members RENAME CONSTRAINT dezernat_mitglieder_user_id_fkey         TO department_members_user_id_fkey;        EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
 
 -- ---------------------------------------------------------------------------
 -- Standalone indexes (non-pkey).
 -- ---------------------------------------------------------------------------
-DO $$ BEGIN ALTER INDEX paliad.dezernate_office_idx           RENAME TO departments_office_idx;        EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER INDEX paliad.dezernate_lead_idx             RENAME TO departments_lead_idx;          EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER INDEX paliad.dezernat_mitglieder_user_idx   RENAME TO department_members_user_idx;   EXCEPTION WHEN undefined_object THEN NULL; END $$;
+DO $$ BEGIN ALTER INDEX paliad.dezernate_office_idx           RENAME TO departments_office_idx;        EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER INDEX paliad.dezernate_lead_idx             RENAME TO departments_lead_idx;          EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER INDEX paliad.dezernat_mitglieder_user_idx   RENAME TO department_members_user_idx;   EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
 
 -- ---------------------------------------------------------------------------
 -- RLS policies
 -- ---------------------------------------------------------------------------
-DO $$ BEGIN ALTER POLICY dezernate_select           ON paliad.departments        RENAME TO departments_select;        EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER POLICY dezernate_write            ON paliad.departments        RENAME TO departments_write;         EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER POLICY dezernat_mitglieder_select ON paliad.department_members RENAME TO department_members_select; EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER POLICY dezernat_mitglieder_write  ON paliad.department_members RENAME TO department_members_write;  EXCEPTION WHEN undefined_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY dezernate_select           ON paliad.departments        RENAME TO departments_select;        EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY dezernate_write            ON paliad.departments        RENAME TO departments_write;         EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY dezernat_mitglieder_select ON paliad.department_members RENAME TO department_members_select; EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY dezernat_mitglieder_write  ON paliad.department_members RENAME TO department_members_write;  EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;

internal/db/migrations/027_rename_to_partner_units.up.sql

@@ -63,27 +63,27 @@ ALTER TABLE paliad.partner_unit_members RENAME COLUMN department_id TO partner_u
 -- 5. Rename constraints. Postgres auto-renames the underlying index for
 --    pkey/uniq constraints; standalone indexes are renamed in step 6.
 -- ---------------------------------------------------------------------------
-DO $$ BEGIN ALTER TABLE paliad.partner_units        RENAME CONSTRAINT departments_pkey                       TO partner_units_pkey;                             EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.partner_units        RENAME CONSTRAINT departments_lead_user_id_fkey          TO partner_units_lead_user_id_fkey;                EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.partner_units        RENAME CONSTRAINT departments_office_check               TO partner_units_office_check;                     EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.partner_unit_members RENAME CONSTRAINT department_members_pkey                TO partner_unit_members_pkey;                      EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.partner_unit_members RENAME CONSTRAINT department_members_department_id_fkey  TO partner_unit_members_partner_unit_id_fkey;      EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER TABLE paliad.partner_unit_members RENAME CONSTRAINT department_members_user_id_fkey        TO partner_unit_members_user_id_fkey;              EXCEPTION WHEN undefined_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.partner_units        RENAME CONSTRAINT departments_pkey                       TO partner_units_pkey;                             EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.partner_units        RENAME CONSTRAINT departments_lead_user_id_fkey          TO partner_units_lead_user_id_fkey;                EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.partner_units        RENAME CONSTRAINT departments_office_check               TO partner_units_office_check;                     EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.partner_unit_members RENAME CONSTRAINT department_members_pkey                TO partner_unit_members_pkey;                      EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.partner_unit_members RENAME CONSTRAINT department_members_department_id_fkey  TO partner_unit_members_partner_unit_id_fkey;      EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER TABLE paliad.partner_unit_members RENAME CONSTRAINT department_members_user_id_fkey        TO partner_unit_members_user_id_fkey;              EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
 
 -- ---------------------------------------------------------------------------
 -- 6. Rename non-pkey indexes.
 -- ---------------------------------------------------------------------------
-DO $$ BEGIN ALTER INDEX paliad.departments_office_idx        RENAME TO partner_units_office_idx;        EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER INDEX paliad.departments_lead_idx          RENAME TO partner_units_lead_idx;          EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER INDEX paliad.department_members_user_idx   RENAME TO partner_unit_members_user_idx;   EXCEPTION WHEN undefined_object THEN NULL; END $$;
+DO $$ BEGIN ALTER INDEX paliad.departments_office_idx        RENAME TO partner_units_office_idx;        EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER INDEX paliad.departments_lead_idx          RENAME TO partner_units_lead_idx;          EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER INDEX paliad.department_members_user_idx   RENAME TO partner_unit_members_user_idx;   EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
 
 -- ---------------------------------------------------------------------------
 -- 7. Rename RLS policies.
 -- ---------------------------------------------------------------------------
-DO $$ BEGIN ALTER POLICY departments_select        ON paliad.partner_units        RENAME TO partner_units_select;        EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER POLICY departments_write         ON paliad.partner_units        RENAME TO partner_units_write;         EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER POLICY department_members_select ON paliad.partner_unit_members RENAME TO partner_unit_members_select; EXCEPTION WHEN undefined_object THEN NULL; END $$;
-DO $$ BEGIN ALTER POLICY department_members_write  ON paliad.partner_unit_members RENAME TO partner_unit_members_write;  EXCEPTION WHEN undefined_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY departments_select        ON paliad.partner_units        RENAME TO partner_units_select;        EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY departments_write         ON paliad.partner_units        RENAME TO partner_units_write;         EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY department_members_select ON paliad.partner_unit_members RENAME TO partner_unit_members_select; EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
+DO $$ BEGIN ALTER POLICY department_members_write  ON paliad.partner_unit_members RENAME TO partner_unit_members_write;  EXCEPTION WHEN undefined_object OR undefined_table OR duplicate_object THEN NULL; END $$;
 
 -- ---------------------------------------------------------------------------
 -- 8. Audit table for partner-unit events. Mutations on partner_units +

internal/db/migrations/125_cross_cutting_filter_legal_source.up.sql

@@ -55,8 +55,6 @@ INSERT INTO paliad.deadline_rules (
     name_en,
     primary_party,
     event_type,
-    is_mandatory,
-    is_optional,
     is_court_set,
     is_spawn,
     duration_value,
@@ -70,7 +68,6 @@ INSERT INTO paliad.deadline_rules (
     deadline_notes_en,
     legal_source,
     condition_expr,
-    condition_flag,
     sequence_order,
     is_active,
     priority,
@@ -90,8 +87,6 @@ SELECT
     'Petition for re-establishment of rights (UPC R.320)',
     NULL::text,
     NULL::text,
-    true,
-    false,
     false,
     false,
     2,
@@ -105,7 +100,6 @@ SELECT
     'Period is 2 months from removal of the obstacle (UPC R.320 RoP). Latest 12 months after expiry of the missed deadline.',
     'UPC.RoP.320',
     NULL::jsonb,
-    NULL::text[],
     1207,
     true,
     'mandatory',

internal/db/migrations/129_project_event_choices.down.sql

@@ -0,0 +1,11 @@
+-- t-paliad-265 — drop per-event-card choices schema.
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 129 down: drop project_event_choices + deadline_rules.choices_offered',
+    true);
+
+DROP TABLE IF EXISTS paliad.project_event_choices;
+
+ALTER TABLE paliad.deadline_rules
+    DROP COLUMN IF EXISTS choices_offered;

internal/db/migrations/129_project_event_choices.up.sql

@@ -0,0 +1,116 @@
+-- t-paliad-265 / m/paliad#96 — per-event-card optional choices on the
+-- Verfahrensablauf timeline.
+--
+-- Design: docs/design-event-card-choices-2026-05-25.md
+-- Decisions: see §11 of the design doc.
+--
+-- Two schema changes:
+--
+--   1. paliad.project_event_choices — new persistence table holding the
+--      user's per-card picks scoped to a project. One row per
+--      (project, submission_code, choice_kind). Re-picking is an UPDATE
+--      (UNIQUE constraint enforces idempotence).
+--
+--   2. paliad.deadline_rules.choices_offered jsonb — opt-in declaration
+--      of which choice-kinds each rule offers. The projection engine
+--      reads this to decide whether to render the caret affordance on
+--      a card. Seeded for every event_type='decision' rule (appellant),
+--      every priority='optional' rule (skip), and the two Klageerwiderung
+--      rows (include_ccr).
+--
+-- NOTE on join key: the design doc named the join column "rule_code".
+-- Live verification (2026-05-25 SELECT against paliad.deadline_rules)
+-- showed `rule_code` is NULL on every decision row — it's the legal-
+-- source citation column, not a stable identifier. The
+-- AnchorOverrides plumbing in internal/services/fristenrechner.go
+-- already keys on `submission_code` (UIDeadline.Code populates from
+-- submission_code, lines 351-352), so we mirror that decision here:
+-- the join column is `submission_code`. Same intent, correct field.
+--
+-- Idempotent: CREATE TABLE IF NOT EXISTS + ADD COLUMN IF NOT EXISTS +
+-- UPDATEs guarded by WHERE choices_offered IS NULL so re-applying
+-- against an already-seeded DB no-ops.
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 129: add paliad.project_event_choices + deadline_rules.choices_offered for per-event-card optional choices (t-paliad-265 / m/paliad#96)',
+    true);
+
+-- 1. The choice-storage table ----------------------------------------------
+
+CREATE TABLE IF NOT EXISTS paliad.project_event_choices (
+    id              uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    project_id      uuid NOT NULL REFERENCES paliad.projects(id) ON DELETE CASCADE,
+    submission_code text NOT NULL,
+    choice_kind     text NOT NULL CHECK (choice_kind IN ('appellant', 'include_ccr', 'skip')),
+    choice_value    text NOT NULL,
+    created_by      uuid REFERENCES paliad.users(id) ON DELETE SET NULL,
+    created_at      timestamptz NOT NULL DEFAULT now(),
+    updated_by      uuid REFERENCES paliad.users(id) ON DELETE SET NULL,
+    updated_at      timestamptz NOT NULL DEFAULT now(),
+
+    UNIQUE (project_id, submission_code, choice_kind)
+);
+
+CREATE INDEX IF NOT EXISTS project_event_choices_project_idx
+    ON paliad.project_event_choices (project_id);
+
+ALTER TABLE paliad.project_event_choices ENABLE ROW LEVEL SECURITY;
+
+DROP POLICY IF EXISTS project_event_choices_select ON paliad.project_event_choices;
+CREATE POLICY project_event_choices_select ON paliad.project_event_choices
+    FOR SELECT USING (paliad.can_see_project(project_id));
+
+DROP POLICY IF EXISTS project_event_choices_mutate ON paliad.project_event_choices;
+CREATE POLICY project_event_choices_mutate ON paliad.project_event_choices
+    FOR ALL
+    USING (paliad.can_see_project(project_id))
+    WITH CHECK (paliad.can_see_project(project_id));
+
+COMMENT ON TABLE paliad.project_event_choices IS
+    'Per-event-card user picks scoped to a project. choice_kind ∈ {appellant, include_ccr, skip}. '
+    'choice_value namespace per kind: appellant=claimant|defendant|both|none; include_ccr=true|false; '
+    'skip=true|false. Join key submission_code matches paliad.deadline_rules.submission_code (the same key '
+    'AnchorOverrides uses). UNIQUE(project,submission_code,kind) keeps re-picks idempotent. '
+    'Audit-logged via paliad.system_audit_log (event_type=project_event_choice.set).';
+
+-- 2. The choices_offered opt-in column ------------------------------------
+
+ALTER TABLE paliad.deadline_rules
+    ADD COLUMN IF NOT EXISTS choices_offered jsonb;
+
+COMMENT ON COLUMN paliad.deadline_rules.choices_offered IS
+    'Declares which per-card choice-kinds this rule offers on the Verfahrensablauf timeline. '
+    'NULL = no caret affordance (default). Example shapes: '
+    '{"appellant": ["claimant","defendant","both","none"]} on decision rules, '
+    '{"skip": [true, false]} on optional rules, '
+    '{"include_ccr": [true, false]} on Klageerwiderung rules. '
+    'Engine and frontend read it; storing per-kind value lists keeps the contract self-describing.';
+
+-- 3. Seed -----------------------------------------------------------------
+
+-- 3a. Every published decision rule offers the appellant choice.
+UPDATE paliad.deadline_rules
+   SET choices_offered = '{"appellant": ["claimant", "defendant", "both", "none"]}'::jsonb
+ WHERE event_type = 'decision'
+   AND lifecycle_state = 'published'
+   AND choices_offered IS NULL;
+
+-- 3b. Every published optional rule offers the skip choice.
+UPDATE paliad.deadline_rules
+   SET choices_offered = '{"skip": [true, false]}'::jsonb
+ WHERE priority = 'optional'
+   AND lifecycle_state = 'published'
+   AND choices_offered IS NULL;
+
+-- 3c. Klageerwiderung rules offer the include_ccr choice. Two rows
+-- today (upc.inf.cfi.sod + de.inf.lg.erwidg) — verified live
+-- (2026-05-25 SELECT FROM paliad.deadline_rules WHERE name ILIKE
+-- 'Klageerwiderung'); the UPC INF Klageerwiderung is `sod` (Statement
+-- of Defence, R.24 RoP), not `def`. Slice B (Q4 bundle) is the
+-- user-visible feature.
+UPDATE paliad.deadline_rules
+   SET choices_offered = '{"include_ccr": [true, false]}'::jsonb
+ WHERE submission_code IN ('upc.inf.cfi.sod', 'de.inf.lg.erwidg')
+   AND lifecycle_state = 'published'
+   AND choices_offered IS NULL;

internal/db/migrations/130_submission_drafts_language.down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE paliad.submission_drafts
+    DROP COLUMN IF EXISTS language;

internal/db/migrations/130_submission_drafts_language.up.sql

@@ -0,0 +1,17 @@
+-- t-paliad-276 / m/paliad#108: per-draft output language for the
+-- Submissions generator.
+--
+-- The submission editor lets the lawyer pick DE or EN per draft so the
+-- generator selects the matching template variant + resolves language-
+-- aware variables ({{procedural_event.name_de}} vs _en). Default is
+-- 'de' to match the primary-language convention in CLAUDE.md and to
+-- keep existing rows behaving exactly as before (every legacy draft
+-- was implicitly DE; the resolved bag for those drafts is unchanged
+-- under language='de').
+
+ALTER TABLE paliad.submission_drafts
+    ADD COLUMN IF NOT EXISTS language text NOT NULL DEFAULT 'de'
+    CONSTRAINT submission_drafts_language_check CHECK (language IN ('de', 'en'));
+
+COMMENT ON COLUMN paliad.submission_drafts.language IS
+    't-paliad-276: output language for the generated .docx. ''de'' or ''en''. Drives template variant selection ({code}.{lang}.docx fallback chain) and language-aware variable resolution.';

internal/db/migrations/131_submission_drafts_party_selection.down.sql

@@ -0,0 +1,4 @@
+-- t-paliad-277 rollback.
+ALTER TABLE paliad.submission_drafts
+    DROP COLUMN IF EXISTS selected_parties,
+    DROP COLUMN IF EXISTS last_imported_at;

internal/db/migrations/131_submission_drafts_party_selection.up.sql

@@ -0,0 +1,32 @@
+-- t-paliad-277 / m/paliad#109: per-draft party selection + import provenance.
+--
+-- Adds two columns to paliad.submission_drafts:
+--
+--   selected_parties uuid[] — IDs of paliad.parties rows the lawyer
+--     has chosen to mention in this specific submission. An empty
+--     array (the default) means "include every party on the project"
+--     so all existing drafts keep their current rendering. Non-empty
+--     restricts the variable bag to the chosen subset, grouped by
+--     role in SubmissionVarsService.
+--
+--   last_imported_at timestamptz — when the lawyer last clicked
+--     "Aus Projekt importieren" on the draft editor (or NULL if they
+--     never did). The frontend surfaces this timestamp next to the
+--     button so a stale draft is obvious at a glance.
+--
+-- Both columns are purely additive and nullable / default-bearing —
+-- the migration is safe to apply with active drafts in the table.
+-- No FK on selected_parties: paliad.parties is project-scoped and we
+-- prune stale references on read inside SubmissionVarsService rather
+-- than chasing FK cascades across two tables (the variable bag silently
+-- drops any uuid that no longer matches a row in paliad.parties).
+
+ALTER TABLE paliad.submission_drafts
+    ADD COLUMN IF NOT EXISTS selected_parties uuid[] NOT NULL DEFAULT '{}'::uuid[],
+    ADD COLUMN IF NOT EXISTS last_imported_at timestamptz;
+
+COMMENT ON COLUMN paliad.submission_drafts.selected_parties IS
+    't-paliad-277: party IDs (paliad.parties) the lawyer has chosen to mention in this submission. Empty array = include every party on the project (backward-compat default). Non-empty = restrict to subset, grouped by role.';
+
+COMMENT ON COLUMN paliad.submission_drafts.last_imported_at IS
+    't-paliad-277: timestamp of the last "Aus Projekt importieren" click — surfaced next to the button so the lawyer can see staleness at a glance. NULL = never imported.';

internal/db/migrations/132_wave1_tier1_rule_additions.down.sql

@@ -0,0 +1,76 @@
+-- Rollback of mig 132 (t-paliad-284 Wave 1 + m/paliad#116).
+--
+-- Reverses §0 (R.104/R.105 citation backfill) + §1..§11 (11 Tier 1
+-- INSERTs) + §12 (T1.12 re-anchor of upc.pi.cfi.response).
+--
+-- Does NOT reverse §13b (Q6 archived-litigation cleanup) — those rows
+-- were already in lifecycle_state='archived' before deletion and are not
+-- surfaced by any product code path. Restoring them would require the
+-- pre-mig-132 backup. Leaving them gone is the correct rollback choice;
+-- emergency restore goes via mig 123 backup snapshot.
+--
+-- DOES restore §13a (re-add the deadline_rule_audit.rule_id FK) so the
+-- audit-table schema returns to its pre-mig-132 shape on rollback. Any
+-- orphan audit rows accumulated under mig 132 (rule_id pointing at
+-- now-deleted rules) would block the FK re-add; the rollback DELETE
+-- below removes them first.
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 132 down: rollback Wave 1 Tier 1 rule additions + R.105 citation backfill + T1.12 re-anchor (t-paliad-284 / m/paliad#116)',
+    true);
+
+-- §12 down — un-re-anchor upc.pi.cfi.response back to its broken root state.
+UPDATE paliad.deadline_rules
+   SET parent_id    = NULL,
+       is_court_set = false,
+       rule_code    = NULL,
+       legal_source = NULL,
+       updated_at   = now()
+ WHERE submission_code = 'upc.pi.cfi.response'
+   AND is_active = true
+   AND lifecycle_state = 'published'
+   AND is_court_set = true
+   AND rule_code = 'RoP.211.2';
+
+-- §1..§11 down — delete the 11 Tier 1 INSERTs by submission_code.
+DELETE FROM paliad.deadline_rules
+ WHERE submission_code IN (
+     'upc.inf.cfi.cmo_review',
+     'upc.inf.cfi.confidentiality_response',
+     'upc.apl.order.response_orders',   -- delete child first (FK to grounds_orders)
+     'upc.apl.order.grounds_orders',
+     'upc.inf.cfi.cons_orders',
+     'upc.inf.cfi.rectification',
+     'upc.pi.cfi.deficiency',
+     'upc.pi.cfi.merits_start',
+     'upc.inf.cfi.translation_request',
+     'upc.inf.cfi.interpreter_cost',
+     'upc.inf.cfi.translations_lodge'
+ )
+   AND lifecycle_state = 'published';
+
+-- §0 down — clear the R.104/R.105 citation on upc.inf.cfi.interim.
+UPDATE paliad.deadline_rules
+   SET rule_code    = NULL,
+       legal_source = NULL,
+       rule_codes   = NULL,
+       updated_at   = now()
+ WHERE submission_code = 'upc.inf.cfi.interim'
+   AND is_active = true
+   AND lifecycle_state = 'published'
+   AND rule_code = 'RoP.104'
+   AND legal_source = 'UPC.RoP.104';
+
+-- §13a down — re-add the deadline_rule_audit.rule_id FK with the
+-- original ON DELETE CASCADE shape. Purge any orphan audit rows first
+-- (audit entries pointing at rule_ids that no longer exist in
+-- deadline_rules) so the FK re-add doesn't fail validation.
+DELETE FROM paliad.deadline_rule_audit a
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules dr WHERE dr.id = a.rule_id
+ );
+
+ALTER TABLE paliad.deadline_rule_audit
+    ADD CONSTRAINT deadline_rule_audit_rule_id_fkey
+    FOREIGN KEY (rule_id) REFERENCES paliad.deadline_rules(id) ON DELETE CASCADE;

internal/db/migrations/132_wave1_tier1_rule_additions.up.sql

@@ -0,0 +1,659 @@
+-- t-paliad-284 Wave 1 + m/paliad#116 — Tier 1 deadline-rule additions
+-- (12 high-frequency procedural events) + UPC RoP R.104/R.105 Interim
+-- Conference citation backfill + Q6 archived-litigation cleanup.
+--
+-- Source: docs/research-deadlines-completeness-2026-05-25.md
+--   • §10 Tier 1 table (T1.1 .. T1.12)
+--   • §3.1 missing-rules catalogue (per-rule statutory citations)
+--   • §9.7 / Q6 (drop the _archived_litigation.* rows — m's design ack
+--     locked in 2026-05-25)
+--
+-- m's report (2026-05-25 17:12) also explicitly named "Zwischenverfahren /
+-- Interim Conference 105" as missing a rule citation. The audit does not
+-- list R.105 as a Tier 1 item (the row upc.inf.cfi.interim already exists
+-- as a court-set anchor), so the fix is to BACKFILL rule_code/legal_source
+-- on that row rather than to insert a new rule. Done here as a separate
+-- §0 section, with both RoP.104 (Aims of the interim conference) and
+-- RoP.105 (Holding of the interim conference) cited via rule_codes[].
+--
+-- Wave 2 Slice A primitives (mig 128: working_days unit + combine_op +
+-- timing='before' backward snap in deadline_calculator.go) are used by:
+--   • T1.8  upc.pi.cfi.merits_start         — 31d OR 20wd, combine_op=max
+--   • T1.9  upc.inf.cfi.translation_request — 1 month BEFORE oral hearing
+--   • T1.10 upc.inf.cfi.interpreter_cost    — 2 weeks BEFORE oral hearing
+-- Wave 2 Slice A landed mig 128 (`deadline_rules_unit_check`) — these
+-- rules are no longer blocked.
+--
+-- Slot 132 reserved: 127 brunel Wave 0, 128 knuth W2-A, 129 demeter,
+-- 130 atlas, 131 artemis → 132 this migration.
+--
+-- Idempotency:
+--   • INSERTs guarded with `WHERE NOT EXISTS (... submission_code = ...)`
+--     so re-applying matches zero rows on the second run.
+--   • UPDATEs guarded with `WHERE` clauses that match the pre-fix row
+--     state only (mig 095 convention).
+--   • DELETE guarded by lifecycle_state='archived' AND prefix — repeats
+--     match zero rows after first run.
+--
+-- audit_reason set_config is required at the top (mig 079 trigger on
+-- paliad.deadline_rules raises EXCEPTION 'audit reason required' for
+-- any INSERT / UPDATE / DELETE without it).
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 132: t-paliad-284 Wave 1 + m/paliad#116 — Tier 1 deadline-rule additions (12 rules) from curie''s audit §10 + UPC RoP R.104/105 Interim Conference citation backfill (m''s 2026-05-25 17:12 report) + Q6 archived-litigation cleanup (audit §9.7)',
+    true);
+
+-- =============================================================================
+-- §0  R.104/R.105 — Backfill citation on the existing Interim Conference row.
+--     m's report flagged that `upc.inf.cfi.interim` (Zwischenverfahren) renders
+--     with no rule reference at /admin/rules. The row exists as a court-set
+--     anchor (duration=0, parent_id=NULL, primary_party='court'). The
+--     governing UPC Rules of Procedure are:
+--       • R.104 — Aims of the interim conference (the substantive rule)
+--       • R.105 — Holding of the interim conference (procedural)
+--     Both cited via the rule_codes[] array; rule_code/legal_source carry
+--     the primary citation (R.104 — Aims).
+-- =============================================================================
+UPDATE paliad.deadline_rules
+   SET rule_code    = 'RoP.104',
+       legal_source = 'UPC.RoP.104',
+       rule_codes   = ARRAY['RoP.104', 'RoP.105'],
+       updated_at   = now()
+ WHERE submission_code = 'upc.inf.cfi.interim'
+   AND is_active = true
+   AND lifecycle_state = 'published'
+   AND rule_code IS NULL
+   AND legal_source IS NULL;
+
+-- =============================================================================
+-- §1  T1.1 upc.inf.cfi.cmo_review — Review of case-management order.
+--     15 days from CMO service. UPC RoP R.333.2: "Any party adversely
+--     affected by a case management order may within 15 days of service
+--     of the order apply to the panel for a review." Routine in busy LDs
+--     (Munich CMO traffic ~weekly). Anchor: the Interim Conference row,
+--     which is where CMOs are typically issued.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 8,                                                          -- upc.inf.cfi
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.inf.cfi.interim'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.inf.cfi.cmo_review',
+       'Überprüfung Verfahrensanordnung',
+       'Review of Case-Management Order',
+       'both', 15, 'days', 'after', 'RoP.333.2', 'UPC.RoP.333.2',
+       'optional', false, 'published', true, 42,
+       'Frist 15 Tage ab Zustellung der Verfahrensanordnung (R.333.2). Jede beschwerte Partei kann beim Spruchkörper Überprüfung beantragen.',
+       '15-day period from service of the case-management order (R.333.2). Any adversely-affected party may apply to the panel for a review.'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.inf.cfi.cmo_review'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §2  T1.2 upc.inf.cfi.confidentiality_response — Response to opposing
+--     party's confidentiality application. 14 days from receipt of the
+--     opposing party's R.262.2 application: "Within 14 days of service
+--     … the other party may lodge an Application to the contrary."
+--     Trigger event 25 (paliad.trigger_events) maps 1:1 to this rule.
+--     Daily occurrence in HLC infringement work. Anchor: Statement of
+--     Claim row as proceeding root — actual trigger date supplied via
+--     'Datum setzen' when the opp party files, since the confidentiality
+--     app is not itself modelled as a deadline_rules row.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, trigger_event_id, deadline_notes, deadline_notes_en)
+SELECT 8,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.inf.cfi.soc'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.inf.cfi.confidentiality_response',
+       'Erwiderung auf Vertraulichkeitsantrag',
+       'Response to Confidentiality Application',
+       'both', 14, 'days', 'after', 'RoP.262.2', 'UPC.RoP.262.2',
+       'optional', false, 'published', true, 8,
+       25,
+       'Frist 14 Tage ab Zustellung des Vertraulichkeitsantrags der Gegenseite (R.262.2). Datum bei Eingang des Antrags manuell setzen.',
+       '14-day period from service of the opposing party''s confidentiality application (R.262.2). Set trigger date manually on receipt of the application.'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.inf.cfi.confidentiality_response'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §3  T1.3 upc.apl.order.grounds_orders — Statement of Grounds on the
+--     orders-track appeal. 15 days from service of the appealed
+--     order/decision. UPC RoP R.224.2(b): "A Statement of grounds of
+--     appeal shall be lodged … within 15 days of service of the
+--     decision/order in cases referred to in Rule 220.1(c), Rule 220.2
+--     and Rule 221.3." Existing upc.apl.order tree has the with_leave
+--     notice but no separate grounds row — adding it.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 20,                                                         -- upc.apl.order
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.apl.order.order'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.apl.order.grounds_orders',
+       'Berufungsbegründung (Orders Track)',
+       'Statement of Grounds (Orders Track)',
+       'both', 15, 'days', 'after', 'RoP.224.2.b', 'UPC.RoP.224.2.b',
+       'mandatory', false, 'published', true, 2,
+       'Frist 15 Tage ab Zustellung der angegriffenen Anordnung/Entscheidung (R.224.2(b)).',
+       '15-day period from service of the appealed order/decision (R.224.2(b)).'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.apl.order.grounds_orders'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §4  T1.4 upc.apl.order.response_orders — Statement of Response on the
+--     orders-track appeal. 15 days from service of the grounds. UPC RoP
+--     R.235.2: "Within 15 days of service of grounds of appeal pursuant
+--     to Rule 224.2(b), any other party … may lodge a Statement of
+--     response." Parent: the grounds_orders row inserted in §3, looked
+--     up by submission_code so this INSERT works either against a fresh
+--     DB or a partially-applied state.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 20,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.apl.order.grounds_orders'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.apl.order.response_orders',
+       'Berufungserwiderung (Orders Track)',
+       'Statement of Response (Orders Track)',
+       'both', 15, 'days', 'after', 'RoP.235.2', 'UPC.RoP.235.2',
+       'optional', false, 'published', true, 3,
+       'Frist 15 Tage ab Zustellung der Berufungsbegründung (R.235.2).',
+       '15-day period from service of the Statement of grounds of appeal (R.235.2).'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.apl.order.response_orders'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §5  T1.5 upc.inf.cfi.cons_orders — Application for orders consequential
+--     on validity. 2 months from service of the validity decision. UPC
+--     RoP R.118.4: "The Court may, upon a reasoned request by one of
+--     the parties, … give a decision granting consequential orders.
+--     The application … shall be made within two months of service of
+--     the decision …". Common after central-division revocation in
+--     bifurcated UPC matters.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 8,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.inf.cfi.decision'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.inf.cfi.cons_orders',
+       'Antrag auf Folgeentscheidungen',
+       'Application for Consequential Orders',
+       'both', 2, 'months', 'after', 'RoP.118.4', 'UPC.RoP.118.4',
+       'optional', false, 'published', true, 60,
+       'Frist 2 Monate ab Zustellung der Validitätsentscheidung (R.118.4). Antrag auf Folgeentscheidungen (z.B. nach Zentralkammer-Nichtigerklärung).',
+       '2-month period from service of the validity decision (R.118.4). Application for orders consequential on validity (e.g. after central-division revocation).'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.inf.cfi.cons_orders'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §6  T1.6 upc.inf.cfi.rectification — Application for rectification of a
+--     decision/order. 1 month from delivery of the decision. UPC RoP
+--     R.353: "Clerical mistakes, errors arising from any accidental
+--     slip or omission and obvious errors in a decision or order of
+--     the Court may be corrected by the Court of its own motion or on
+--     the application of a party. The application shall be made within
+--     one month of the decision or order being notified."
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 8,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.inf.cfi.decision'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.inf.cfi.rectification',
+       'Antrag auf Berichtigung',
+       'Application for Rectification',
+       'both', 1, 'months', 'after', 'RoP.353', 'UPC.RoP.353',
+       'optional', false, 'published', true, 70,
+       'Frist 1 Monat ab Zustellung der Entscheidung/Anordnung (R.353). Berichtigung von Schreib-, Rechen- oder ähnlichen Versehen.',
+       '1-month period from notification of the decision/order (R.353). Rectification of clerical mistakes, accidental slips or obvious errors.'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.inf.cfi.rectification'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §7  T1.7 upc.pi.cfi.deficiency — Cure of PI-application deficiency.
+--     14 days from notification of the deficiency. UPC RoP R.207.6(a):
+--     "The Registry shall as soon as practicable examine the
+--     Application … and notify any deficiencies to the applicant. The
+--     applicant shall be invited to correct the deficiencies … within
+--     14 days." Failure to cure leads to deemed-withdrawal.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 10,                                                         -- upc.pi.cfi
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.pi.cfi.app'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.pi.cfi.deficiency',
+       'Mängelbeseitigung Antrag',
+       'Cure of Application Deficiency',
+       'claimant', 14, 'days', 'after', 'RoP.207.6.a', 'UPC.RoP.207.6.a',
+       'mandatory', false, 'published', true, 2,
+       'Frist 14 Tage ab Mängelmitteilung durch die Geschäftsstelle (R.207.6(a)). Bei Nichtbehebung gilt der Antrag als zurückgenommen.',
+       '14-day period from notification of deficiency by the Registry (R.207.6(a)). Failure to cure leads to deemed withdrawal of the application.'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.pi.cfi.deficiency'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §8  T1.8 upc.pi.cfi.merits_start — Start proceedings on the merits.
+--     31 calendar days OR 20 working days, whichever is the longer,
+--     from grant of the PI. UPC RoP R.213.1 → R.198.1: "the applicant
+--     shall start proceedings leading to a decision on the merits of
+--     the case … within a period not exceeding 31 calendar days or
+--     20 working days, whichever is the longer." Combine-max wiring
+--     via Wave 2 Slice A primitives (mig 128: working_days unit +
+--     combine_op). Failure to commence on time → PI lapses (R.213.2).
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit,
+     alt_duration_value, alt_duration_unit, alt_rule_code,
+     combine_op, timing, rule_code, legal_source, priority,
+     is_court_set, lifecycle_state, is_active, sequence_order,
+     deadline_notes, deadline_notes_en)
+SELECT 10,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.pi.cfi.order'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.pi.cfi.merits_start',
+       'Klage in der Hauptsache erheben',
+       'Start Proceedings on the Merits',
+       'claimant', 31, 'days',
+       20, 'working_days', 'RoP.198.1',
+       'max', 'after', 'RoP.213', 'UPC.RoP.213',
+       'mandatory', false, 'published', true, 3,
+       'Frist 31 Kalendertage ODER 20 Arbeitstage (jeweils das längere) ab Anordnung der einstweiligen Maßnahme (R.213 i.V.m. R.198.1). Bei Versäumnis erlischt die einstweilige Maßnahme.',
+       '31 calendar days OR 20 working days, whichever is the longer, from grant of the provisional measure (R.213 referring to R.198.1). Failure to commence within the period causes the provisional measure to lapse.'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.pi.cfi.merits_start'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §9  T1.9 upc.inf.cfi.translation_request — Request for simultaneous
+--     translation at the oral hearing. 1 month BEFORE the oral hearing.
+--     UPC RoP R.109.1: "A party requiring simultaneous interpretation
+--     of the oral hearing into a language other than the language of
+--     proceedings shall, no later than one month before the date of
+--     the oral hearing, lodge a request with the Court." timing='before'
+--     uses the backward-snap path in deadline_calculator.go (mig 128).
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 8,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.inf.cfi.oral'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.inf.cfi.translation_request',
+       'Antrag auf Simultanübersetzung',
+       'Request for Simultaneous Translation',
+       'both', 1, 'months', 'before', 'RoP.109.1', 'UPC.RoP.109.1',
+       'optional', false, 'published', true, 45,
+       'Frist 1 Monat VOR der mündlichen Verhandlung (R.109.1). Antrag auf Simultanübersetzung in eine andere Sprache als die Verfahrenssprache.',
+       '1 month BEFORE the oral hearing (R.109.1). Request for simultaneous interpretation into a language other than the language of proceedings.'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.inf.cfi.translation_request'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §10 T1.10 upc.inf.cfi.interpreter_cost — Notification of interpreter
+--     cost-bearing. 2 weeks BEFORE the oral hearing. UPC RoP R.109.4:
+--     "Where … the party which made the request for interpretation is
+--     not the party who has chosen the language of the proceedings,
+--     the costs of the interpretation … shall be borne by the
+--     requesting party, unless the Court orders otherwise. The party
+--     shall be notified at least two weeks before the oral hearing."
+--     timing='before' as in §9.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, deadline_notes, deadline_notes_en)
+SELECT 8,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.inf.cfi.oral'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.inf.cfi.interpreter_cost',
+       'Mitteilung Dolmetscherkosten',
+       'Notification of Interpreter Costs',
+       'court', 2, 'weeks', 'before', 'RoP.109.4', 'UPC.RoP.109.4',
+       'mandatory', false, 'published', true, 46,
+       'Frist 2 Wochen VOR der mündlichen Verhandlung (R.109.4). Mitteilung, dass die antragstellende Partei die Dolmetscherkosten zu tragen hat.',
+       '2 weeks BEFORE the oral hearing (R.109.4). Notification to the requesting party that it shall bear the interpreter costs.'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.inf.cfi.interpreter_cost'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §11 T1.11 upc.inf.cfi.translations_lodge — Lodging of translations on
+--     judge-rapporteur order. 2 weeks AFTER the JR's order. UPC RoP
+--     R.109.5: "If the judge-rapporteur orders, the parties shall lodge
+--     a translation of any pleading or other document into the language
+--     of the proceedings within two weeks." trigger_event_id=113 maps
+--     to the JR translation order. Anchor: Interim Conference row, where
+--     such JR orders are typically issued.
+-- =============================================================================
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     primary_party, duration_value, duration_unit, timing, rule_code,
+     legal_source, priority, is_court_set, lifecycle_state, is_active,
+     sequence_order, trigger_event_id, deadline_notes, deadline_notes_en)
+SELECT 8,
+       (SELECT id FROM paliad.deadline_rules
+         WHERE submission_code = 'upc.inf.cfi.interim'
+           AND lifecycle_state = 'published' AND is_active = true
+         LIMIT 1),
+       'upc.inf.cfi.translations_lodge',
+       'Übersetzungen einreichen',
+       'Lodging of Translations',
+       'both', 2, 'weeks', 'after', 'RoP.109.5', 'UPC.RoP.109.5',
+       'mandatory', false, 'published', true, 47,
+       113,
+       'Frist 2 Wochen ab Anordnung des Berichterstatters, Übersetzungen einzureichen (R.109.5).',
+       '2-week period from the judge-rapporteur''s order to lodge translations (R.109.5).'
+ WHERE NOT EXISTS (
+     SELECT 1 FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.inf.cfi.translations_lodge'
+        AND lifecycle_state = 'published'
+ );
+
+-- =============================================================================
+-- §12 T1.12 upc.pi.cfi.response — RE-ANCHOR of the existing PI Response
+--     row. Currently broken: parent_id=NULL with is_court_set=false and
+--     duration=0 makes the calculator treat this as a root anchor. UPC
+--     RoP R.211.2 — judge sets the inter-partes hearing date and the
+--     deadline for the response. Fix: set is_court_set=true and chain
+--     parent_id on upc.pi.cfi.app (the proceeding root). Duration
+--     remains 0 (court-set placeholder); the lawyer fills in the actual
+--     date via 'Datum setzen'.
+-- =============================================================================
+UPDATE paliad.deadline_rules
+   SET parent_id   = (SELECT id FROM paliad.deadline_rules
+                       WHERE submission_code = 'upc.pi.cfi.app'
+                         AND lifecycle_state = 'published'
+                         AND is_active = true
+                       LIMIT 1),
+       is_court_set = true,
+       rule_code    = 'RoP.211.2',
+       legal_source = 'UPC.RoP.211.2',
+       updated_at   = now()
+ WHERE submission_code = 'upc.pi.cfi.response'
+   AND is_active = true
+   AND lifecycle_state = 'published'
+   AND parent_id IS NULL
+   AND is_court_set = false;
+
+-- =============================================================================
+-- §13a Pre-requisite for §13b — drop the deadline_rule_audit.rule_id FK.
+--     The audit trigger (mig 079) tries to INSERT an audit row on AFTER
+--     DELETE pointing at OLD.id, but the existing FK constraint
+--     `deadline_rule_audit_rule_id_fkey` (FOREIGN KEY rule_id REFERENCES
+--     paliad.deadline_rules(id) ON DELETE CASCADE) makes that INSERT fail
+--     because by the time the trigger fires the parent row is gone. As a
+--     result no DELETE on paliad.deadline_rules has ever succeeded in
+--     production (`SELECT count(*) FROM paliad.deadline_rule_audit
+--     WHERE action='delete'` returns 0). The trigger's DELETE branch was
+--     dead code.
+--
+--     Standard audit-table design: the audit log is append-only history
+--     and should NOT FK-constrain on the live entity table — before_json
+--     captures the full row state at the time of the change, which is
+--     all the audit trail needs. Dropping the FK fixes the latent bug
+--     and unblocks legitimate cleanup work (here: §13b, plus any future
+--     hard-delete migrations against deadline_rules).
+--
+--     Idempotent: DROP CONSTRAINT IF EXISTS no-ops on re-run.
+-- =============================================================================
+ALTER TABLE paliad.deadline_rule_audit
+    DROP CONSTRAINT IF EXISTS deadline_rule_audit_rule_id_fkey;
+
+-- =============================================================================
+-- §13b Q6 cleanup — drop the _archived_litigation.* deadline rules.
+--     40 rows at audit §9.7 flagged as obsolete Pipeline-A residue
+--     (proceeding_type id=32 '_archived_litigation' — kept for FK
+--     parity but the rules are no longer surfaced anywhere in the
+--     product). m's Q6 design ack 2026-05-25 locked in their removal.
+--     Idempotent: prefix + lifecycle_state='archived' match zero rows
+--     after first run. The proceeding_type row itself is left in place
+--     (referenced by historical deadline_rule_audit before_json blobs).
+-- =============================================================================
+DELETE FROM paliad.deadline_rules
+ WHERE submission_code LIKE '_archived_litigation.%' ESCAPE '\'
+   AND lifecycle_state = 'archived';
+
+-- =============================================================================
+-- Hard assertions. Each new/changed row must end up in its post-fix
+-- shape. Re-running the migration is a no-op for the data but the
+-- assertions still pass because they check the post-fix state.
+-- =============================================================================
+DO $$
+DECLARE
+    v_count integer;
+BEGIN
+    -- §0 R.105 interim conference backfilled
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.interim'
+       AND is_active = true
+       AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.104'
+       AND legal_source = 'UPC.RoP.104'
+       AND 'RoP.105' = ANY(rule_codes);
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 §0: upc.inf.cfi.interim citation backfill not in post-fix shape (got % matches)', v_count;
+    END IF;
+
+    -- §1 T1.1 cmo_review present
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.cmo_review'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.333.2' AND duration_value = 15
+       AND duration_unit = 'days' AND timing = 'after';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.1: upc.inf.cfi.cmo_review missing or wrong shape (got % matches)', v_count;
+    END IF;
+
+    -- §2 T1.2 confidentiality_response
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.confidentiality_response'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.262.2' AND duration_value = 14
+       AND duration_unit = 'days' AND trigger_event_id = 25;
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.2: upc.inf.cfi.confidentiality_response missing or wrong shape (got % matches)', v_count;
+    END IF;
+
+    -- §3 T1.3 grounds_orders
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.apl.order.grounds_orders'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.224.2.b' AND duration_value = 15
+       AND duration_unit = 'days';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.3: upc.apl.order.grounds_orders missing or wrong shape (got % matches)', v_count;
+    END IF;
+
+    -- §4 T1.4 response_orders chained on §3
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules dr
+      JOIN paliad.deadline_rules p ON p.id = dr.parent_id
+     WHERE dr.submission_code = 'upc.apl.order.response_orders'
+       AND dr.is_active = true AND dr.lifecycle_state = 'published'
+       AND dr.rule_code = 'RoP.235.2' AND dr.duration_value = 15
+       AND p.submission_code = 'upc.apl.order.grounds_orders';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.4: upc.apl.order.response_orders missing or wrong parent chain (got % matches)', v_count;
+    END IF;
+
+    -- §5 T1.5 cons_orders
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.cons_orders'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.118.4' AND duration_value = 2
+       AND duration_unit = 'months';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.5: upc.inf.cfi.cons_orders missing or wrong shape (got % matches)', v_count;
+    END IF;
+
+    -- §6 T1.6 rectification
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.rectification'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.353' AND duration_value = 1
+       AND duration_unit = 'months';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.6: upc.inf.cfi.rectification missing or wrong shape (got % matches)', v_count;
+    END IF;
+
+    -- §7 T1.7 pi.deficiency
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.pi.cfi.deficiency'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.207.6.a' AND duration_value = 14
+       AND duration_unit = 'days';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.7: upc.pi.cfi.deficiency missing or wrong shape (got % matches)', v_count;
+    END IF;
+
+    -- §8 T1.8 pi.merits_start — combine-max wiring
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.pi.cfi.merits_start'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.213' AND duration_value = 31
+       AND duration_unit = 'days'
+       AND alt_duration_value = 20 AND alt_duration_unit = 'working_days'
+       AND alt_rule_code = 'RoP.198.1' AND combine_op = 'max';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.8: upc.pi.cfi.merits_start missing or wrong combine-max shape (got % matches)', v_count;
+    END IF;
+
+    -- §9 T1.9 translation_request — timing='before'
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.translation_request'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.109.1' AND duration_value = 1
+       AND duration_unit = 'months' AND timing = 'before';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.9: upc.inf.cfi.translation_request missing or wrong timing (got % matches)', v_count;
+    END IF;
+
+    -- §10 T1.10 interpreter_cost — timing='before'
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.interpreter_cost'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.109.4' AND duration_value = 2
+       AND duration_unit = 'weeks' AND timing = 'before';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.10: upc.inf.cfi.interpreter_cost missing or wrong timing (got % matches)', v_count;
+    END IF;
+
+    -- §11 T1.11 translations_lodge
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.inf.cfi.translations_lodge'
+       AND is_active = true AND lifecycle_state = 'published'
+       AND rule_code = 'RoP.109.5' AND duration_value = 2
+       AND duration_unit = 'weeks' AND trigger_event_id = 113;
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.11: upc.inf.cfi.translations_lodge missing or wrong shape (got % matches)', v_count;
+    END IF;
+
+    -- §12 T1.12 pi.response re-anchor
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules dr
+      JOIN paliad.deadline_rules p ON p.id = dr.parent_id
+     WHERE dr.submission_code = 'upc.pi.cfi.response'
+       AND dr.is_active = true AND dr.lifecycle_state = 'published'
+       AND dr.is_court_set = true
+       AND p.submission_code = 'upc.pi.cfi.app';
+    IF v_count <> 1 THEN
+        RAISE EXCEPTION 'mig 132 T1.12: upc.pi.cfi.response not re-anchored on app (got % matches)', v_count;
+    END IF;
+
+    -- §13 Q6 cleanup — no archived _archived_litigation rules left
+    SELECT count(*) INTO v_count
+      FROM paliad.deadline_rules
+     WHERE submission_code LIKE '_archived_litigation.%' ESCAPE '\'
+       AND lifecycle_state = 'archived';
+    IF v_count <> 0 THEN
+        RAISE EXCEPTION 'mig 132 §13: % archived _archived_litigation.* rules still present after cleanup', v_count;
+    END IF;
+END $$;

internal/db/migrations/133_upc_dmgs_pi_court_followup.down.sql

@@ -0,0 +1,33 @@
+-- Reverses mig 133. Removes the 5 new rules:
+--   * upc.dmgs.cfi.interim
+--   * upc.dmgs.cfi.oral
+--   * upc.dmgs.cfi.decision
+--   * upc.dmgs.cfi.appeal_spawn
+--   * upc.pi.cfi.appeal_spawn
+--
+-- The audit_reason is required by the mig 079 trigger for DELETE;
+-- set_config at top supplies it.
+--
+-- Idempotent — if a rule is already missing the DELETE matches zero
+-- rows and the audit log records nothing extra.
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 133 (down): revert UPC Damages tree-end rows and UPC PI appeal-spawn (t-paliad-285 / m/paliad#117 + t-paliad-286 / m/paliad#118)',
+    true);
+
+-- Delete the spawn rows first so the parent_id reference goes away
+-- before the parent decision row is removed.
+DELETE FROM paliad.deadline_rules
+ WHERE submission_code IN (
+        'upc.dmgs.cfi.appeal_spawn',
+        'upc.pi.cfi.appeal_spawn')
+   AND lifecycle_state = 'published';
+
+DELETE FROM paliad.deadline_rules
+ WHERE submission_code IN (
+        'upc.dmgs.cfi.interim',
+        'upc.dmgs.cfi.oral',
+        'upc.dmgs.cfi.decision')
+   AND proceeding_type_id = 17
+   AND lifecycle_state = 'published';

internal/db/migrations/133_upc_dmgs_pi_court_followup.up.sql

@@ -0,0 +1,405 @@
+-- t-paliad-285 (m/paliad#117) + t-paliad-286 (m/paliad#118) —
+-- post-submission court followup for UPC Damages and appeal route
+-- for UPC Provisional Measures.
+--
+-- m's 2026-05-25 report: the upc.dmgs.cfi proceeding stops at the
+-- last party submission (rejoin) — no interim conference, no oral
+-- hearing, no decision row, no appeal-spawn. The upc.pi.cfi
+-- proceeding has its decision row (`pi.order`) but no spawn into
+-- the appeal tree. Both gaps prevent the Verfahrensablauf timeline
+-- from rendering the court phase plus any downstream appeal sub-
+-- tree that atlas's #96 spawn-rendering mechanism is otherwise
+-- ready to surface.
+--
+-- Two sections in one migration (slot 133 — knuth on 132, paliadin
+-- coordinated):
+--
+--   A. UPC Damages tree-end rows (#117)
+--      A1  upc.dmgs.cfi.interim       UPC RoP R.105   court-set hearing
+--      A2  upc.dmgs.cfi.oral          UPC RoP R.118 / R.250  court-set hearing
+--      A3  upc.dmgs.cfi.decision      UPC RoP R.118 / R.144  court-set decision
+--      A4  upc.dmgs.cfi.appeal_spawn  UPC RoP R.220.1(a) / R.224.1(a)  2mo, spawn → upc.apl.merits (id=11)
+--
+--   B. UPC Provisional Measures appeal route (#118)
+--      B1  upc.pi.cfi.appeal_spawn    UPC RoP R.220.1(a) / R.224.1(a)  2mo, spawn → upc.apl.merits (id=11)
+--
+-- Source citations:
+--   * docs/research-deadlines-completeness-2026-05-25.md
+--       — §2.1 (upc.dmgs.cfi has only 4 rules: R.131.2 / R.137.2 / R.139)
+--       — §D Damages table (R.144 tree-end row missing — listed
+--         in Tier 4 as "cosmetic", upgraded to Tier-0 by m's
+--         report once the wider follow-up gap was understood)
+--   * docs/audit-upc-rop-deadlines-2026-05-08.md §D row R.144,
+--     §F R.220.1(a) / R.224.1(a) (verified verbatim in youpc DB
+--     under law_type=UPCRoP).
+--   * UPC Rules of Procedure (consolidated):
+--       R.105 — Interim conference (court fixes after written
+--         procedure closes; same structural shape as the inf
+--         interim conference, already modelled as `upc.inf.cfi.interim`).
+--       R.118 — Decision after oral hearing; general rule for
+--         deciding panels.
+--       R.250 — Determination of damages decision; damages-
+--         specific decision rule (chains R.144 indication →
+--         damages award).
+--       R.144 — Final decision on damages quantum (tree-end
+--         anchor for §A3).
+--       R.220.1(a) — Appeal lies from any final decision /
+--         decision disposing of the case at first instance.
+--         A PI order under R.211 disposes of the urgent question
+--         and is therefore appealable on the main 2-month track
+--         (not the 15-day order track of R.220.1(c), which covers
+--         case-management and procedural orders requiring leave).
+--         Curie's §F table confirms the main-track wiring for
+--         decisions on merits / disposing orders.
+--       R.224.1(a) — Statement of Appeal within 2 months of
+--         service of the final decision; the deadline-notes text
+--         mirrors mig 095's inf.appeal_spawn / rev.appeal_spawn.
+--       R.224.2(a) — Statement of grounds within 4 months
+--         (separate deadline in the spawned upc.apl.merits
+--         proceeding; already present as upc.apl.merits.grounds).
+--
+-- Shape decisions (mirroring mig 012 / mig 095 conventions):
+--   * Court-set rows (interim / oral / decision) carry
+--     primary_party='court', event_type='hearing'|'decision',
+--     duration_value=0, is_court_set=true, parent_id=NULL,
+--     concept_id reuses the shared concepts already wired for
+--     upc.inf.cfi (interim-conference / oral-hearing / decision).
+--   * Spawn rows carry primary_party='both', is_spawn=true,
+--     spawn_proceeding_type_id=11 (upc.apl.merits), spawn_label
+--     identical to the merits spawn already in production. The
+--     spawn row's parent_id is the spawning decision/order row
+--     (so the audit log carries the trigger link).
+--   * No condition_expr — m's F2.3 decision recorded in mig 095
+--     §3: "the appeal deadline should always be triggered by a
+--     decision … appeal is always a possibility." Visibility
+--     filtering on the frontend hides appeals on projects where
+--     no appeal is contemplated.
+--   * sequence_order numbering follows the inf convention
+--     (40=interim, 50=oral, 60=decision, 80=appeal_spawn) so the
+--     Verfahrensablauf timeline orders consistently across
+--     proceedings. For PI the existing pi.order sits at
+--     sequence_order=3; the appeal_spawn lands at 10 (clear of
+--     the writ phase, room for future court-phase rows).
+--
+-- Idempotency: every INSERT is gated by `WHERE NOT EXISTS (… same
+-- submission_code, proceeding_type_id, lifecycle_state)`. Re-apply
+-- against an already-migrated DB inserts zero rows and the audit
+-- log carries no duplicate entries.
+--
+-- audit_reason set_config required at the top — the mig 079 trigger
+-- on paliad.deadline_rules raises EXCEPTION 'audit reason required'
+-- on INSERT/UPDATE/DELETE without it.
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 133: t-paliad-285 / m/paliad#117 + t-paliad-286 / m/paliad#118 — UPC Damages tree-end rows (interim conference R.105, oral hearing R.118/R.250, decision R.118/R.144, appeal-spawn R.220.1(a)) and UPC Provisional Measures appeal-spawn R.220.1(a); see docs/research-deadlines-completeness-2026-05-25.md §D and docs/audit-upc-rop-deadlines-2026-05-08.md §D/§F',
+    true);
+
+-- =============================================================================
+-- A. UPC Damages — court-phase tree end (m/paliad#117)
+-- =============================================================================
+
+-- A1. upc.dmgs.cfi.interim — Interim conference (UPC RoP R.105).
+--     Court-set hearing fixed by the judge-rapporteur once the
+--     written procedure closes. Identical shape to
+--     upc.inf.cfi.interim; reuses the shared interim-conference
+--     concept node.
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     description, primary_party, event_type,
+     duration_value, duration_unit, timing,
+     rule_code, deadline_notes, deadline_notes_en, sequence_order,
+     is_spawn, spawn_proceeding_type_id, spawn_label,
+     is_active, legal_source, is_bilateral,
+     condition_expr, priority, is_court_set, lifecycle_state,
+     concept_id)
+SELECT
+    17,
+    NULL,
+    'upc.dmgs.cfi.interim',
+    'Zwischenverfahren',
+    'Interim Conference',
+    NULL,
+    'court',
+    'hearing',
+    0,
+    'months',
+    'after',
+    NULL,
+    'Termin vom Gericht bestimmt',
+    'Date set by the court',
+    40,
+    false,
+    NULL,
+    NULL,
+    true,
+    NULL,
+    false,
+    NULL,
+    'optional',
+    true,
+    'published',
+    'e5071152-d408-4455-b644-9e79d86fd538'
+WHERE NOT EXISTS (
+    SELECT 1 FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.dmgs.cfi.interim'
+       AND proceeding_type_id = 17
+       AND lifecycle_state = 'published');
+
+-- A2. upc.dmgs.cfi.oral — Oral hearing (UPC RoP R.118 / R.250).
+--     Court-set hearing after the interim conference / close of
+--     written procedure. Same shape as upc.inf.cfi.oral; reuses
+--     the shared oral-hearing concept node.
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     description, primary_party, event_type,
+     duration_value, duration_unit, timing,
+     rule_code, deadline_notes, deadline_notes_en, sequence_order,
+     is_spawn, spawn_proceeding_type_id, spawn_label,
+     is_active, legal_source, is_bilateral,
+     condition_expr, priority, is_court_set, lifecycle_state,
+     concept_id)
+SELECT
+    17,
+    NULL,
+    'upc.dmgs.cfi.oral',
+    'Mündliche Verhandlung',
+    'Oral Hearing',
+    NULL,
+    'court',
+    'hearing',
+    0,
+    'months',
+    'after',
+    NULL,
+    NULL,
+    NULL,
+    50,
+    false,
+    NULL,
+    NULL,
+    true,
+    NULL,
+    false,
+    NULL,
+    'optional',
+    true,
+    'published',
+    'd6e5b793-dcf1-4d83-81ff-34f42dbb3693'
+WHERE NOT EXISTS (
+    SELECT 1 FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.dmgs.cfi.oral'
+       AND proceeding_type_id = 17
+       AND lifecycle_state = 'published');
+
+-- A3. upc.dmgs.cfi.decision — Damages decision (UPC RoP R.118 /
+--     R.144 / R.250). Court-set decision delivered after oral
+--     hearing; closes the §3.1 audit gap (R.144 tree-end). Same
+--     shape as upc.inf.cfi.decision; reuses the shared decision
+--     concept node.
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     description, primary_party, event_type,
+     duration_value, duration_unit, timing,
+     rule_code, deadline_notes, deadline_notes_en, sequence_order,
+     is_spawn, spawn_proceeding_type_id, spawn_label,
+     is_active, legal_source, is_bilateral,
+     condition_expr, priority, is_court_set, lifecycle_state,
+     concept_id)
+SELECT
+    17,
+    NULL,
+    'upc.dmgs.cfi.decision',
+    'Entscheidung',
+    'Decision',
+    NULL,
+    'court',
+    'decision',
+    0,
+    'months',
+    'after',
+    NULL,
+    NULL,
+    NULL,
+    60,
+    false,
+    NULL,
+    NULL,
+    true,
+    NULL,
+    false,
+    NULL,
+    'optional',
+    true,
+    'published',
+    '472fc32d-cc4f-4aa4-8ace-e422031812de'
+WHERE NOT EXISTS (
+    SELECT 1 FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.dmgs.cfi.decision'
+       AND proceeding_type_id = 17
+       AND lifecycle_state = 'published');
+
+-- A4. upc.dmgs.cfi.appeal_spawn — Appeal against damages decision
+--     (UPC RoP R.220.1(a), 2-month main track; grounds R.224.2(a)
+--     run as a separate deadline in the spawned upc.apl.merits
+--     proceeding). Parent points at the freshly-inserted
+--     upc.dmgs.cfi.decision; the SELECT subquery resolves it
+--     after A3 lands. Same shape as the mig 095 inf.appeal_spawn.
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     description, primary_party, event_type,
+     duration_value, duration_unit, timing,
+     rule_code, deadline_notes, deadline_notes_en, sequence_order,
+     is_spawn, spawn_proceeding_type_id, spawn_label,
+     is_active, legal_source, is_bilateral,
+     condition_expr, priority, is_court_set, lifecycle_state)
+SELECT
+    17,
+    (SELECT id FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.dmgs.cfi.decision'
+        AND proceeding_type_id = 17
+        AND lifecycle_state = 'published'
+        AND is_active = true),
+    'upc.dmgs.cfi.appeal_spawn',
+    'Berufung gegen Schadensentscheidung',
+    'Appeal against damages decision',
+    'Berufung gegen die Entscheidung über die Schadensbemessung (R.118 / R.144). Statutarische Frist von 2 Monaten ab Zustellung der Entscheidung (R.224.1(a)); die Berufungsbegründung folgt mit 4 Monaten ab Zustellung (R.224.2(a), eigenständige Frist im Berufungsverfahren).',
+    'both',
+    'filing',
+    2,
+    'months',
+    'after',
+    'RoP.220.1.a',
+    'Innerhalb von 2 Monaten ab Zustellung der Schadensentscheidung Berufungsschrift einreichen (R.224.1(a)). Die Berufungsbegründung (R.224.2(a), 4 Monate) läuft als separate Frist im Berufungsverfahren.',
+    'Within 2 months of service of the damages decision lodge the Statement of appeal (R.224.1(a)). The Statement of grounds (R.224.2(a), 4 months) runs as an independent deadline in the appeal proceeding.',
+    80,
+    true,
+    11,
+    'Berufungsverfahren öffnen',
+    true,
+    'UPC.RoP.220.1',
+    false,
+    NULL,
+    'optional',
+    false,
+    'published'
+WHERE NOT EXISTS (
+    SELECT 1 FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.dmgs.cfi.appeal_spawn'
+       AND proceeding_type_id = 17
+       AND lifecycle_state = 'published');
+
+-- =============================================================================
+-- B. UPC Provisional Measures — appeal route (m/paliad#118)
+-- =============================================================================
+
+-- B1. upc.pi.cfi.appeal_spawn — Appeal against PI order (UPC RoP
+--     R.220.1(a), 2-month main track). PI orders under R.211
+--     dispose of the urgent question and are appealable on the
+--     main 2-month track (R.220.1(a)/R.224.1(a)); the 15-day
+--     order track of R.220.1(c) is for case-management /
+--     procedural orders requiring leave and does not apply to
+--     PI dispositions. Parent points at the existing
+--     upc.pi.cfi.order (sequence_order=3) so the spawn fires
+--     once the order is anchored on a project's timeline.
+INSERT INTO paliad.deadline_rules
+    (proceeding_type_id, parent_id, submission_code, name, name_en,
+     description, primary_party, event_type,
+     duration_value, duration_unit, timing,
+     rule_code, deadline_notes, deadline_notes_en, sequence_order,
+     is_spawn, spawn_proceeding_type_id, spawn_label,
+     is_active, legal_source, is_bilateral,
+     condition_expr, priority, is_court_set, lifecycle_state)
+SELECT
+    10,
+    (SELECT id FROM paliad.deadline_rules
+      WHERE submission_code = 'upc.pi.cfi.order'
+        AND proceeding_type_id = 10
+        AND lifecycle_state = 'published'
+        AND is_active = true),
+    'upc.pi.cfi.appeal_spawn',
+    'Berufung gegen Anordnung',
+    'Appeal against PI order',
+    'Berufung gegen die einstweilige Anordnung nach R.211. Eine PI-Anordnung erledigt die einstweilige Streitfrage und wird wie eine Endentscheidung im Hauptverfahren behandelt: statutarische Frist von 2 Monaten ab Zustellung (R.224.1(a)); die Berufungsbegründung folgt mit 4 Monaten ab Zustellung (R.224.2(a), eigenständige Frist im Berufungsverfahren). Die 15-Tage-Spur nach R.220.1(c) / R.220.2 gilt für Verfahrensanordnungen mit Zulassung und ist hier nicht einschlägig.',
+    'both',
+    'filing',
+    2,
+    'months',
+    'after',
+    'RoP.220.1.a',
+    'Innerhalb von 2 Monaten ab Zustellung der PI-Anordnung Berufungsschrift einreichen (R.224.1(a)). Die Berufungsbegründung (R.224.2(a), 4 Monate) läuft als separate Frist im Berufungsverfahren.',
+    'Within 2 months of service of the PI order lodge the Statement of appeal (R.224.1(a)). The Statement of grounds (R.224.2(a), 4 months) runs as an independent deadline in the appeal proceeding.',
+    10,
+    true,
+    11,
+    'Berufungsverfahren öffnen',
+    true,
+    'UPC.RoP.220.1',
+    false,
+    NULL,
+    'optional',
+    false,
+    'published'
+WHERE NOT EXISTS (
+    SELECT 1 FROM paliad.deadline_rules
+     WHERE submission_code = 'upc.pi.cfi.appeal_spawn'
+       AND proceeding_type_id = 10
+       AND lifecycle_state = 'published');
+
+-- =============================================================================
+-- C. Post-insert verification — raise if any expected row is missing
+--    (matches the mig 095 / 127 convention; protects against a future
+--    re-shape of the table that silently drops one of the WHERE NOT
+--    EXISTS predicates).
+-- =============================================================================
+
+DO $$
+DECLARE
+    v_missing text;
+BEGIN
+    SELECT string_agg(expected, ', ' ORDER BY expected)
+      INTO v_missing
+      FROM (VALUES
+            ('upc.dmgs.cfi.interim'),
+            ('upc.dmgs.cfi.oral'),
+            ('upc.dmgs.cfi.decision'),
+            ('upc.dmgs.cfi.appeal_spawn'),
+            ('upc.pi.cfi.appeal_spawn')
+        ) AS t(expected)
+     WHERE NOT EXISTS (
+        SELECT 1 FROM paliad.deadline_rules dr
+         WHERE dr.submission_code = t.expected
+           AND dr.lifecycle_state = 'published'
+           AND dr.is_active = true);
+
+    IF v_missing IS NOT NULL THEN
+        RAISE EXCEPTION
+            'mig 133: expected published rules missing after insert: %', v_missing;
+    END IF;
+
+    IF NOT EXISTS (
+        SELECT 1 FROM paliad.deadline_rules dr
+         WHERE dr.submission_code = 'upc.dmgs.cfi.appeal_spawn'
+           AND dr.proceeding_type_id = 17
+           AND dr.spawn_proceeding_type_id = 11
+           AND dr.is_spawn = true
+           AND dr.parent_id IS NOT NULL
+           AND dr.lifecycle_state = 'published'
+    ) THEN
+        RAISE EXCEPTION
+            'mig 133: upc.dmgs.cfi.appeal_spawn shape check failed (expected is_spawn=true, spawn_proceeding_type_id=11, parent_id set)';
+    END IF;
+
+    IF NOT EXISTS (
+        SELECT 1 FROM paliad.deadline_rules dr
+         WHERE dr.submission_code = 'upc.pi.cfi.appeal_spawn'
+           AND dr.proceeding_type_id = 10
+           AND dr.spawn_proceeding_type_id = 11
+           AND dr.is_spawn = true
+           AND dr.parent_id IS NOT NULL
+           AND dr.lifecycle_state = 'published'
+    ) THEN
+        RAISE EXCEPTION
+            'mig 133: upc.pi.cfi.appeal_spawn shape check failed (expected is_spawn=true, spawn_proceeding_type_id=11, parent_id set)';
+    END IF;
+END $$;

internal/db/migrations/134_berufung_unification.down.sql

@@ -0,0 +1,72 @@
+-- 134_berufung_unification — DOWN
+--
+-- Reverses the Berufung unification: un-archives the 3 old appeal
+-- proceeding_types, points the 16 rules back at their original
+-- proceeding by their applies_to_target stamp, drops the new
+-- upc.apl row, drops the two columns + their CHECK constraints.
+--
+-- The 3 old proceeding_types are recovered by code (we archived them,
+-- never deleted them — that's what makes this down-migration safe).
+-- ---------------------------------------------------------------
+
+-- ---------------------------------------------------------------
+-- 0. Audit reason (required by mig 079 trigger — step 2 UPDATEs
+--    paliad.deadline_rules to reverse the reassignment).
+-- ---------------------------------------------------------------
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 134 DOWN: revert Slice B1 — restore 3 separate UPC appeal proceeding_types, drop applies_to_target column',
+    true);
+
+-- ---------------------------------------------------------------
+-- 1. Un-archive the 3 old appeal proceeding_types.
+-- ---------------------------------------------------------------
+
+UPDATE paliad.proceeding_types
+   SET is_active = true
+ WHERE code IN ('upc.apl.merits', 'upc.apl.cost', 'upc.apl.order');
+
+-- ---------------------------------------------------------------
+-- 2. Point rules back at their original proceeding_type by stamp.
+-- ---------------------------------------------------------------
+
+UPDATE paliad.deadline_rules dr
+   SET proceeding_type_id = (
+        SELECT id FROM paliad.proceeding_types WHERE code = 'upc.apl.merits'
+       )
+ WHERE dr.applies_to_target = ARRAY['endentscheidung']::text[];
+
+UPDATE paliad.deadline_rules dr
+   SET proceeding_type_id = (
+        SELECT id FROM paliad.proceeding_types WHERE code = 'upc.apl.cost'
+       )
+ WHERE dr.applies_to_target = ARRAY['kostenentscheidung']::text[];
+
+UPDATE paliad.deadline_rules dr
+   SET proceeding_type_id = (
+        SELECT id FROM paliad.proceeding_types WHERE code = 'upc.apl.order'
+       )
+ WHERE dr.applies_to_target = ARRAY['anordnung']::text[];
+
+-- ---------------------------------------------------------------
+-- 3. Drop the unified upc.apl.unified row (now orphaned).
+-- ---------------------------------------------------------------
+
+DELETE FROM paliad.proceeding_types WHERE code = 'upc.apl.unified';
+
+-- ---------------------------------------------------------------
+-- 4. Drop the new columns + their CHECK constraints.
+-- ---------------------------------------------------------------
+
+ALTER TABLE paliad.deadline_rules
+    DROP CONSTRAINT IF EXISTS deadline_rules_applies_to_target_chk;
+
+ALTER TABLE paliad.deadline_rules
+    DROP COLUMN IF EXISTS applies_to_target;
+
+ALTER TABLE paliad.proceeding_types
+    DROP CONSTRAINT IF EXISTS proceeding_types_appeal_target_chk;
+
+ALTER TABLE paliad.proceeding_types
+    DROP COLUMN IF EXISTS appeal_target;

internal/db/migrations/134_berufung_unification.up.sql

@@ -0,0 +1,272 @@
+-- 134_berufung_unification — Slice B1, m/paliad#124, t-paliad-298+
+--
+-- Collapses the 3 active UPC appeal proceeding_types (upc.apl.merits,
+-- upc.apl.cost, upc.apl.order — 16 rules across 3 codes) into ONE
+-- unified upc.apl proceeding type + an `appeal_target` discriminator on
+-- both proceeding_types (top-level marker) and deadline_rules
+-- (per-row applies-to set, text[] for multi-target rules).
+--
+-- ADDITIVE ONLY. The migration:
+--   1. Adds the two columns + check constraints.
+--   2. Inserts the new upc.apl proceeding type.
+--   3. Audit-first: NOTICES every row about to be touched.
+--   4. Reassigns rule rows from the 3 old types to upc.apl, stamping
+--      applies_to_target by source proceeding code.
+--   5. Archives (is_active=false) the 3 old proceeding_types — NEVER
+--      deletes them, so any historical project_event_choices / FK
+--      references stay intact.
+--
+-- Schadensbemessung + Bucheinsicht get NO rule rows in this migration
+-- (m's 2026-05-26 decision: distinct rule sets, not shared with
+-- merits). Their appeal_target enum values are defined and addressable
+-- by CalcOptions.AppealTarget; the engine returns an empty timeline
+-- until rules are seeded in a follow-up slice (likely via
+-- /admin/rules, pairing with t-paliad-193 orphan-concept-seed).
+--
+-- See docs/design-litigation-planner-2026-05-26.md §18.1.
+
+-- ---------------------------------------------------------------
+-- 0. Audit reason (required by mig 079 trigger for any UPDATE on
+--    paliad.deadline_rules — step 4 reassigns 16 rules).
+-- ---------------------------------------------------------------
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 134: t-paliad-292 Slice B1 — Berufung unification, collapse 3 UPC appeal proceeding_types into upc.apl.unified + appeal_target discriminator',
+    true);
+
+-- ---------------------------------------------------------------
+-- 1. Schema additions
+-- ---------------------------------------------------------------
+
+ALTER TABLE paliad.proceeding_types
+    ADD COLUMN appeal_target text NULL;
+
+ALTER TABLE paliad.proceeding_types
+    ADD CONSTRAINT proceeding_types_appeal_target_chk
+        CHECK (appeal_target IS NULL OR appeal_target IN (
+            'endentscheidung',
+            'kostenentscheidung',
+            'anordnung',
+            'schadensbemessung',
+            'bucheinsicht'
+        ));
+
+COMMENT ON COLUMN paliad.proceeding_types.appeal_target IS
+    'Top-level appeal-target marker. NULL on non-appeal proceedings. '
+    'Reserved for future variants — today only the unified upc.apl row '
+    'has this NULL (the actual per-rule target set lives on '
+    'paliad.deadline_rules.applies_to_target).';
+
+ALTER TABLE paliad.deadline_rules
+    ADD COLUMN applies_to_target text[] NULL;
+
+ALTER TABLE paliad.deadline_rules
+    ADD CONSTRAINT deadline_rules_applies_to_target_chk
+        CHECK (
+            applies_to_target IS NULL
+            OR applies_to_target <@ ARRAY[
+                'endentscheidung',
+                'kostenentscheidung',
+                'anordnung',
+                'schadensbemessung',
+                'bucheinsicht'
+            ]::text[]
+        );
+
+COMMENT ON COLUMN paliad.deadline_rules.applies_to_target IS
+    'Set of appeal_target slugs this rule applies to. NULL on rules '
+    'that don''t belong to an appeal proceeding. The engine filters '
+    'by CalcOptions.AppealTarget — rules whose applies_to_target '
+    'contains the requested slug are emitted; others are suppressed.';
+
+-- ---------------------------------------------------------------
+-- 2. Insert the unified upc.apl row.
+--
+-- Inherits default_color from the merits row (the most-used appeal
+-- track today). sort_order follows the cluster of UPC proceedings;
+-- placed just before upc.apl.merits's old slot so the chip-grouped
+-- picker UI lands Berufung in a sensible position. Tweakable later
+-- without a migration.
+-- ---------------------------------------------------------------
+
+INSERT INTO paliad.proceeding_types (
+    code, name, name_en, description, jurisdiction, category,
+    default_color, sort_order, is_active, display_order,
+    appeal_target
+)
+SELECT
+    'upc.apl.unified',
+    'Berufungsverfahren',
+    'Appeal',
+    'Vereinheitlichtes Berufungsverfahren — wählen Sie anschließend, '
+    'worauf die Berufung sich richtet (Endentscheidung, '
+    'Kostenentscheidung, Anordnung, Schadensbemessung, Bucheinsicht).',
+    'UPC',
+    'fristenrechner',
+    default_color,
+    sort_order,
+    true,
+    display_order,
+    NULL
+FROM paliad.proceeding_types
+WHERE code = 'upc.apl.merits';
+
+-- ---------------------------------------------------------------
+-- 3. Audit-first RAISE NOTICE pass.
+--
+-- Lists every rule row that will be reassigned + every proceeding_type
+-- row that will be archived. The migration runs to completion either
+-- way; the operator reads the notices to confirm scope before the
+-- next migration in the chain.
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    rec record;
+    upc_apl_id int;
+    rules_touched int := 0;
+    procs_archived int := 0;
+BEGIN
+    SELECT id INTO upc_apl_id
+      FROM paliad.proceeding_types
+     WHERE code = 'upc.apl.unified';
+    RAISE NOTICE '[mig 134] new upc.apl.unified proceeding_type_id = %', upc_apl_id;
+
+    RAISE NOTICE '[mig 134] Rules to reassign to upc.apl.unified with applies_to_target:';
+    FOR rec IN
+        SELECT dr.id AS rule_id,
+               pt.code AS old_proceeding,
+               dr.submission_code,
+               dr.name
+          FROM paliad.deadline_rules dr
+          JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+         WHERE pt.code IN ('upc.apl.merits', 'upc.apl.cost', 'upc.apl.order')
+           AND dr.is_active = true
+        ORDER BY pt.code, dr.sequence_order
+    LOOP
+        RAISE NOTICE '[mig 134]   %  %  %  (%)',
+            rec.old_proceeding, rec.submission_code, rec.name, rec.rule_id;
+        rules_touched := rules_touched + 1;
+    END LOOP;
+    RAISE NOTICE '[mig 134] Total rules to reassign: %', rules_touched;
+
+    RAISE NOTICE '[mig 134] Proceeding_types to archive (is_active=false):';
+    FOR rec IN
+        SELECT id, code, name
+          FROM paliad.proceeding_types
+         WHERE code IN ('upc.apl.merits', 'upc.apl.cost', 'upc.apl.order')
+         ORDER BY sort_order
+    LOOP
+        RAISE NOTICE '[mig 134]   %  %  (id=%)', rec.code, rec.name, rec.id;
+        procs_archived := procs_archived + 1;
+    END LOOP;
+    RAISE NOTICE '[mig 134] Total proceeding_types to archive: %', procs_archived;
+END $$;
+
+-- ---------------------------------------------------------------
+-- 4. Reassign rule rows.
+--
+-- Stamp applies_to_target by source proceeding code, then point all
+-- 16 rules at the new upc.apl row.
+-- ---------------------------------------------------------------
+
+-- 4a. upc.apl.merits → applies_to_target = {endentscheidung}
+UPDATE paliad.deadline_rules dr
+   SET applies_to_target = ARRAY['endentscheidung']::text[]
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code = 'upc.apl.merits'
+   AND dr.is_active = true;
+
+-- 4b. upc.apl.cost → applies_to_target = {kostenentscheidung}
+UPDATE paliad.deadline_rules dr
+   SET applies_to_target = ARRAY['kostenentscheidung']::text[]
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code = 'upc.apl.cost'
+   AND dr.is_active = true;
+
+-- 4c. upc.apl.order → applies_to_target = {anordnung}
+UPDATE paliad.deadline_rules dr
+   SET applies_to_target = ARRAY['anordnung']::text[]
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code = 'upc.apl.order'
+   AND dr.is_active = true;
+
+-- 4d. Reassign all 16 rules to the new upc.apl.unified proceeding_type row.
+UPDATE paliad.deadline_rules dr
+   SET proceeding_type_id = (
+        SELECT id FROM paliad.proceeding_types WHERE code = 'upc.apl.unified'
+       )
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code IN ('upc.apl.merits', 'upc.apl.cost', 'upc.apl.order');
+
+-- ---------------------------------------------------------------
+-- 5. Archive the 3 old proceeding_types.
+--
+-- NEVER DELETE — historical project_event_choices and project FKs
+-- (paliad.projects.proceeding_type_id) may still reference these IDs.
+-- The is_active=false flag stops them appearing in the picker but
+-- preserves FK integrity for historical reads.
+-- ---------------------------------------------------------------
+
+UPDATE paliad.proceeding_types
+   SET is_active = false
+ WHERE code IN ('upc.apl.merits', 'upc.apl.cost', 'upc.apl.order');
+
+-- ---------------------------------------------------------------
+-- 6. Post-migration sanity check.
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    unified_count int;
+    archived_count int;
+    target_distribution record;
+BEGIN
+    SELECT COUNT(*) INTO unified_count
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified' AND dr.is_active = true;
+    RAISE NOTICE '[mig 134] post: rules on unified upc.apl.unified = % (expected 16)', unified_count;
+    IF unified_count <> 16 THEN
+        RAISE EXCEPTION '[mig 134] FAILED — expected 16 rules on upc.apl.unified, got %', unified_count;
+    END IF;
+
+    SELECT COUNT(*) INTO archived_count
+      FROM paliad.proceeding_types
+     WHERE code IN ('upc.apl.merits', 'upc.apl.cost', 'upc.apl.order')
+       AND is_active = false;
+    RAISE NOTICE '[mig 134] post: archived old appeal proceeding_types = % (expected 3)', archived_count;
+    IF archived_count <> 3 THEN
+        RAISE EXCEPTION '[mig 134] FAILED — expected 3 archived types, got %', archived_count;
+    END IF;
+
+    FOR target_distribution IN
+        SELECT unnest(applies_to_target) AS target, COUNT(*) AS n
+          FROM paliad.deadline_rules dr
+          JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+         WHERE pt.code = 'upc.apl.unified' AND dr.is_active = true
+         GROUP BY unnest(applies_to_target)
+         ORDER BY 1
+    LOOP
+        RAISE NOTICE '[mig 134] post: applies_to_target=%  count=%',
+            target_distribution.target, target_distribution.n;
+    END LOOP;
+END $$;
+
+-- ---------------------------------------------------------------
+-- TODO (follow-up slice, not in 134):
+--
+-- Seed rules for Schadensbemessung-as-appeal + Bucheinsicht-as-appeal.
+-- m's 2026-05-26 decision: distinct rule sets, NOT shared with merits.
+-- - Schadensbemessung: anchor on R.118.4 decision; conjecture 2/4-month
+--   merits-style track but distinct legal basis.
+-- - Bucheinsicht: anchor on R.142 (Lay-open-books decision); conjecture
+--   15-day track per R.220.2 + R.224.2.b.
+-- Can pair with t-paliad-193 orphan-concept-seed if m wants a combined
+-- editorial pass via /admin/rules.
+-- ---------------------------------------------------------------

internal/db/migrations/135_primary_party_check.down.sql

@@ -0,0 +1,8 @@
+-- 135_primary_party_check — DOWN
+--
+-- Drops the CHECK constraint added in 135.up. No data revert needed
+-- — the column stays text, the four-value vocab is enforced only by
+-- application code thereafter.
+
+ALTER TABLE paliad.deadline_rules
+    DROP CONSTRAINT IF EXISTS deadline_rules_primary_party_chk;

internal/db/migrations/135_primary_party_check.up.sql

@@ -0,0 +1,92 @@
+-- 135_primary_party_check — Slice B3, m/paliad#124 §18.3
+--
+-- Tightens paliad.deadline_rules.primary_party from free-text to a
+-- CHECK constraint over the canonical four-value vocabulary
+-- (claimant / defendant / court / both). NULL stays valid for the
+-- 78 cross-cutting orphan concept seeds (Wiedereinsetzung,
+-- Versäumnisurteil-Einspruch, Schriftsatznachreichung,
+-- Weiterbehandlung) — they have no proceeding_type_id binding so
+-- they're outside the calculator's path; loosening the CHECK to
+-- "IS NULL OR IN (…)" keeps them valid without backfill gymnastics.
+--
+-- Audit-first: the DO block RAISEs NOTICE for every non-conforming
+-- row before adding the CHECK, and RAISEs EXCEPTION if any dirty
+-- rows are found so the operator can decide a manual cleanup path.
+-- Live audit (Supabase, 2026-05-26 §18.0) confirmed zero dirty rows
+-- on the current corpus: 26 claimant + 26 defendant + 38 court +
+-- 63 both + 78 NULL = 231 total, all in the canonical vocab. The
+-- audit pass stays in the migration for safety against future drift
+-- (e.g. a rule editor write that bypassed the application-layer
+-- validation hook this slice also adds).
+
+DO $$
+DECLARE
+    rec record;
+    dirty_count int := 0;
+BEGIN
+    RAISE NOTICE '[mig 135] primary_party audit pass — non-conforming rows:';
+    FOR rec IN
+        SELECT dr.id, dr.name, dr.primary_party,
+               pt.code AS proceeding_code
+          FROM paliad.deadline_rules dr
+          LEFT JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+         WHERE dr.is_active = true
+           AND dr.primary_party IS NOT NULL
+           AND dr.primary_party NOT IN ('claimant', 'defendant', 'court', 'both')
+         ORDER BY pt.code NULLS LAST, dr.name
+    LOOP
+        RAISE NOTICE '[mig 135]   %  %  primary_party=%  (rule=%)',
+            COALESCE(rec.proceeding_code, '<orphan>'),
+            rec.name,
+            rec.primary_party,
+            rec.id;
+        dirty_count := dirty_count + 1;
+    END LOOP;
+    IF dirty_count > 0 THEN
+        RAISE EXCEPTION '[mig 135] FAILED — % rule(s) carry non-canonical primary_party values. '
+            'Manual cleanup required: update each row to one of '
+            '''claimant'', ''defendant'', ''court'', ''both'', or NULL. '
+            'See the NOTICE lines above for the offending rows.', dirty_count;
+    END IF;
+    RAISE NOTICE '[mig 135] audit clean — proceeding with CHECK constraint';
+END $$;
+
+-- ---------------------------------------------------------------
+-- Add the CHECK constraint. NULL stays valid; the four canonical
+-- values are the only allowed non-NULL forms.
+-- ---------------------------------------------------------------
+
+ALTER TABLE paliad.deadline_rules
+    ADD CONSTRAINT deadline_rules_primary_party_chk
+        CHECK (
+            primary_party IS NULL
+            OR primary_party IN ('claimant', 'defendant', 'court', 'both')
+        );
+
+COMMENT ON CONSTRAINT deadline_rules_primary_party_chk
+    ON paliad.deadline_rules IS
+    'Slice B3 (mig 135, m/paliad#124 §18.3) — canonical four-value '
+    'vocab for primary_party (claimant / defendant / court / both). '
+    'NULL allowed for cross-cutting orphan concept seeds (78 rows in '
+    'live corpus as of mig 135). See pkg/litigationplanner.PrimaryParties '
+    'for the in-code vocabulary.';
+
+-- ---------------------------------------------------------------
+-- Post-migration distribution check — informational NOTICE only.
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    rec record;
+BEGIN
+    RAISE NOTICE '[mig 135] post: primary_party distribution after constraint add:';
+    FOR rec IN
+        SELECT COALESCE(primary_party, '<NULL>') AS party, COUNT(*) AS n
+          FROM paliad.deadline_rules
+         WHERE is_active = true
+         GROUP BY primary_party
+         ORDER BY party
+    LOOP
+        RAISE NOTICE '[mig 135]   %  count=%', rec.party, rec.n;
+    END LOOP;
+END $$;

internal/db/migrations/136_procedural_events_additive.down.sql

@@ -0,0 +1,19 @@
+-- 136_procedural_events_additive (down) — Slice B.1, t-paliad-273
+--
+-- Safe to run at any point in B.1's lifetime. Up does NOT touch
+-- paliad.deadline_rules, so dropping the new tables + columns loses no
+-- application data — every source row in deadline_rules is intact and
+-- authoritative through the dual-write window.
+--
+-- Reverse order: drop indexes implicitly via DROP TABLE, drop the two
+-- deadlines link columns first (their FKs target procedural_events +
+-- sequencing_rules), then drop the three new tables in FK-safe order
+-- (sequencing_rules → procedural_events → legal_sources).
+
+ALTER TABLE paliad.deadlines
+    DROP COLUMN IF EXISTS procedural_event_id,
+    DROP COLUMN IF EXISTS sequencing_rule_id;
+
+DROP TABLE IF EXISTS paliad.sequencing_rules;
+DROP TABLE IF EXISTS paliad.procedural_events;
+DROP TABLE IF EXISTS paliad.legal_sources;

internal/db/migrations/136_procedural_events_additive.up.sql

@@ -0,0 +1,488 @@
+-- 136_procedural_events_additive — Slice B.1, t-paliad-273 / m/paliad#93
+--
+-- ADDITIVE ONLY. Creates the three new tables that split today's
+-- paliad.deadline_rules into its three latent concepts (per the
+-- 2026-05-25 inventor design + 2026-05-26 B.0 re-validation):
+--
+--   1. paliad.legal_sources        — the source-of-law citations
+--                                    (DE.PatG.102, UPC.RoP.220.1, …)
+--   2. paliad.procedural_events    — the procedural-event templates
+--                                    (Rechtsbeschwerdebegründung, etc.;
+--                                    successor of `submission_code`)
+--   3. paliad.sequencing_rules     — the timing + trigger + condition
+--                                    mechanics (today's per-row data)
+--
+-- and adds two nullable link columns on paliad.deadlines so B.2's
+-- dual-write phase has somewhere to point.
+--
+-- The migration does NOT touch paliad.deadline_rules. The legacy table
+-- stays intact and authoritative for reads until B.3 flips the cutover.
+-- deadlines.rule_id stays in place (read by the calculator + projection
+-- service). No app code is changed by this migration; B.2 introduces
+-- the dual-write that wires services to the new tables.
+--
+-- Backfill plan (cf. design §5.1 + B.0 findings §7):
+--   * legal_sources <- DISTINCT legal_source FROM deadline_rules WHERE
+--                       legal_source IS NOT NULL. pretty_de/pretty_en
+--                       LEFT NULL for now (legalSourcePretty() in Go
+--                       continues to materialise them on read; a future
+--                       slice backfills them via a Go shim).
+--   * procedural_events <-
+--       (a) DISTINCT ON (submission_code) FROM deadline_rules WHERE
+--           submission_code IS NOT NULL — picks the lowest-id rule per
+--           code as the procedural-event identity source.
+--       (b) one synthetic procedural_event per NULL-submission_code
+--           rule, code = 'null.' || substring(replace(id::text,'-',''),1,8).
+--           m's pick (paliadin instruction 2026-05-26): mint synthetic
+--           codes so every deadline_rules row ends up with a
+--           procedural_events row, preserving the 1:1 sequencing-rule
+--           backfill and keeping the NOT NULL FK on
+--           sequencing_rules.procedural_event_id intact.
+--   * sequencing_rules <- 1:1 from deadline_rules. The new row inherits
+--           the source row's id so that any existing
+--           paliad.deadlines.rule_id FK target stays resolvable through
+--           the dual-write window (design §5.1 step 4).
+--   * deadlines.procedural_event_id + sequencing_rule_id <- joined from
+--           sequencing_rules on the inherited id.
+--
+-- Design deviations (intentional, documented):
+--   - procedural_events.event_kind is NULLABLE (design proposed NOT NULL
+--     with 'other' fallback). Today 89 deadline_rules rows have NULL
+--     event_type — these are "structural / parent-only rows in the
+--     proceeding tree" per B.0 §1. Forcing them to 'other' would lose
+--     semantics. A later slice can tighten this to NOT NULL after the
+--     78+11 NULLs are reclassified.
+--   - legal_sources.pretty_de / pretty_en are NULLABLE (design proposed
+--     NOT NULL). Materialising them requires the Go-side
+--     legalSourcePretty() function — out of scope for a SQL migration.
+--     The Go read path continues to compute them on the fly from
+--     legal_source / citation; a future slice (Go shim driven from
+--     internal/services/submission_vars.go:619) backfills them.
+--   - submission_drafts is NOT modified. The design proposes adding
+--     procedural_event_id there too (§4.1 §5.1 step 6) but the B.1
+--     instruction scope is explicit: tables + deadlines columns only.
+--     submission_drafts continues to key off submission_code text.
+--
+-- Audit pattern follows mig 135 (Slice B3): PRE-pass counts what we
+-- expect to write, BACKFILL runs the SELECT-INSERTs, POST-pass verifies
+-- row counts and FK integrity. Any mismatch RAISE EXCEPTIONs and the
+-- transaction rolls back — operator sees the NOTICE lines and the
+-- failed assertion message.
+--
+-- See: docs/design-procedural-events-model-2026-05-25.md §4 + §5
+--      docs/design-procedural-events-b0-findings-2026-05-26.md §7
+
+-- ---------------------------------------------------------------
+-- 0. PRE pass — snapshot what we're about to backfill
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    v_rules           int;
+    v_codes_nn        int;
+    v_codes_distinct  int;
+    v_codes_null      int;
+    v_legal_distinct  int;
+    v_concept_linked  int;
+    v_dups            int;
+BEGIN
+    SELECT COUNT(*) INTO v_rules            FROM paliad.deadline_rules;
+    SELECT COUNT(*) INTO v_codes_nn         FROM paliad.deadline_rules WHERE submission_code IS NOT NULL;
+    SELECT COUNT(DISTINCT submission_code) INTO v_codes_distinct
+                                            FROM paliad.deadline_rules WHERE submission_code IS NOT NULL;
+    SELECT COUNT(*) INTO v_codes_null       FROM paliad.deadline_rules WHERE submission_code IS NULL;
+    SELECT COUNT(DISTINCT legal_source) INTO v_legal_distinct
+                                            FROM paliad.deadline_rules WHERE legal_source IS NOT NULL;
+    SELECT COUNT(*) INTO v_concept_linked   FROM paliad.deadline_rules WHERE concept_id IS NOT NULL;
+
+    RAISE NOTICE '[mig 136] PRE: deadline_rules=%, with_submission_code=%, distinct_codes=%, null_codes=%, distinct_legal_sources=%, concept_linked=%',
+        v_rules, v_codes_nn, v_codes_distinct, v_codes_null, v_legal_distinct, v_concept_linked;
+
+    -- Defensive: refuse to run if multi-row submission_codes have crept
+    -- back in. B.0 (2026-05-26) found zero; mig 134 + 135 do not add
+    -- any. If this CHECK ever fires the backfill arithmetic below
+    -- breaks silently (one PE per code becomes ambiguous), so abort.
+    SELECT COUNT(*) INTO v_dups FROM (
+        SELECT submission_code
+          FROM paliad.deadline_rules
+         WHERE submission_code IS NOT NULL
+         GROUP BY submission_code
+        HAVING COUNT(*) > 1
+    ) d;
+    IF v_dups > 0 THEN
+        RAISE EXCEPTION '[mig 136] FAILED PRE: % submission_code value(s) appear on >1 deadline_rules row. '
+            'The B.0 audit (2026-05-26) found zero. If you are seeing this, a rule was added that '
+            'duplicates an existing submission_code (or the _archived_litigation.* rows returned). '
+            'Decide whether the new schema collapses them (multiple sequencing rules → one '
+            'procedural event) or whether each row gets its own code, then update this migration '
+            'or the offending data before re-running.', v_dups;
+    END IF;
+END $$;
+
+-- ---------------------------------------------------------------
+-- 1. CREATE TABLE paliad.legal_sources
+-- ---------------------------------------------------------------
+
+CREATE TABLE paliad.legal_sources (
+    id           uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    citation     text NOT NULL UNIQUE,
+    jurisdiction text NOT NULL,
+    pretty_de    text,
+    pretty_en    text,
+    notes        text,
+    created_at   timestamptz NOT NULL DEFAULT now(),
+    updated_at   timestamptz NOT NULL DEFAULT now()
+);
+
+COMMENT ON TABLE paliad.legal_sources IS
+    'Source-of-law citations (DE.PatG.102, UPC.RoP.220.1, …). One row per '
+    'distinct citation shorthand. pretty_de/pretty_en backfilled by a '
+    'future Go-driven slice; until then NULL and the Go service ('
+    'internal/services/submission_vars.go:619 legalSourcePretty) computes '
+    'the human-readable form on read from the citation. Slice B.1 t-paliad-273.';
+
+CREATE INDEX legal_sources_jurisdiction_idx ON paliad.legal_sources(jurisdiction);
+
+-- ---------------------------------------------------------------
+-- 2. CREATE TABLE paliad.procedural_events
+-- ---------------------------------------------------------------
+
+CREATE TABLE paliad.procedural_events (
+    id                    uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    code                  text NOT NULL UNIQUE,
+    name                  text NOT NULL,
+    name_en               text NOT NULL DEFAULT '',
+    description           text,
+    event_kind            text,
+    primary_party_default text,
+    legal_source_id       uuid REFERENCES paliad.legal_sources(id),
+    concept_id            uuid REFERENCES paliad.deadline_concepts(id),
+    lifecycle_state       text NOT NULL DEFAULT 'published',
+    draft_of              uuid REFERENCES paliad.procedural_events(id),
+    published_at          timestamptz,
+    is_active             boolean NOT NULL DEFAULT true,
+    created_at            timestamptz NOT NULL DEFAULT now(),
+    updated_at            timestamptz NOT NULL DEFAULT now()
+);
+
+COMMENT ON TABLE paliad.procedural_events IS
+    'Procedural-event templates — the "what kind of step is this in the '
+    'proceeding" hat of the legacy paliad.deadline_rules row. One row per '
+    'unique submission_code, plus one synthetic row per NULL-submission_code '
+    'rule (code prefix "null."). Slice B.1 t-paliad-273.';
+
+COMMENT ON COLUMN paliad.procedural_events.event_kind IS
+    'filing|reply|hearing|decision|order|other. NULLABLE for now — 89 '
+    'rules in the live corpus have NULL event_type (structural / parent-only '
+    'rows in the proceeding tree). A future slice can tighten to NOT NULL '
+    'after these are reclassified.';
+
+COMMENT ON COLUMN paliad.procedural_events.concept_id IS
+    'Optional reference to a deadline_concepts row. N:1 — one concept may '
+    'be shared by many procedural events (e.g. "Berufungsfrist" attaches to '
+    'all four court-specific Berufung procedural events). Do NOT add UNIQUE.';
+
+CREATE INDEX procedural_events_concept_id_idx     ON paliad.procedural_events(concept_id);
+CREATE INDEX procedural_events_event_kind_idx     ON paliad.procedural_events(event_kind);
+CREATE INDEX procedural_events_lifecycle_idx      ON paliad.procedural_events(lifecycle_state);
+CREATE INDEX procedural_events_legal_source_idx   ON paliad.procedural_events(legal_source_id);
+
+-- ---------------------------------------------------------------
+-- 3. CREATE TABLE paliad.sequencing_rules
+-- ---------------------------------------------------------------
+
+CREATE TABLE paliad.sequencing_rules (
+    id                       uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    procedural_event_id      uuid NOT NULL REFERENCES paliad.procedural_events(id),
+    proceeding_type_id       integer REFERENCES paliad.proceeding_types(id),
+    parent_id                uuid REFERENCES paliad.sequencing_rules(id),
+    trigger_event_id         bigint REFERENCES paliad.trigger_events(id),
+    duration_value           integer NOT NULL DEFAULT 0,
+    duration_unit            text NOT NULL DEFAULT 'months',
+    timing                   text DEFAULT 'after',
+    alt_duration_value       integer,
+    alt_duration_unit        text,
+    alt_rule_code            text,
+    anchor_alt               text,
+    combine_op               text,
+    condition_expr           jsonb,
+    primary_party            text,
+    sequence_order           integer NOT NULL DEFAULT 0,
+    is_spawn                 boolean NOT NULL DEFAULT false,
+    spawn_label              text,
+    spawn_proceeding_type_id integer REFERENCES paliad.proceeding_types(id),
+    is_bilateral             boolean NOT NULL DEFAULT false,
+    is_court_set             boolean NOT NULL DEFAULT false,
+    priority                 text NOT NULL DEFAULT 'mandatory',
+    rule_code                text,
+    rule_codes               text[],
+    deadline_notes           text,
+    deadline_notes_en        text,
+    choices_offered          jsonb,
+    applies_to_target        text[],
+    lifecycle_state          text NOT NULL DEFAULT 'published',
+    draft_of                 uuid REFERENCES paliad.sequencing_rules(id),
+    published_at             timestamptz,
+    is_active                boolean NOT NULL DEFAULT true,
+    created_at               timestamptz NOT NULL DEFAULT now(),
+    updated_at               timestamptz NOT NULL DEFAULT now()
+);
+
+COMMENT ON TABLE paliad.sequencing_rules IS
+    'Sequencing-rule mechanics — the "how and when does this fire" hat of '
+    'the legacy paliad.deadline_rules row. 1:1 with deadline_rules during '
+    'the dual-write window; the id is inherited from deadline_rules.id so '
+    'paliad.deadlines.rule_id FKs continue to resolve transitively. '
+    'Slice B.1 t-paliad-273.';
+
+COMMENT ON COLUMN paliad.sequencing_rules.primary_party IS
+    'Per-rule override of procedural_events.primary_party_default. Same '
+    'four-value vocab as deadline_rules.primary_party (mig 135 CHECK). '
+    'NULL = use procedural-event default. A future slice can add the '
+    'same CHECK here.';
+
+CREATE INDEX sequencing_rules_pe_proc_lifecycle_idx
+    ON paliad.sequencing_rules(procedural_event_id, proceeding_type_id, lifecycle_state);
+CREATE INDEX sequencing_rules_parent_id_idx       ON paliad.sequencing_rules(parent_id);
+CREATE INDEX sequencing_rules_trigger_event_idx   ON paliad.sequencing_rules(trigger_event_id);
+CREATE INDEX sequencing_rules_proceeding_type_idx ON paliad.sequencing_rules(proceeding_type_id);
+
+-- ---------------------------------------------------------------
+-- 4. ALTER paliad.deadlines — add link columns
+-- ---------------------------------------------------------------
+
+ALTER TABLE paliad.deadlines
+    ADD COLUMN procedural_event_id uuid REFERENCES paliad.procedural_events(id),
+    ADD COLUMN sequencing_rule_id  uuid REFERENCES paliad.sequencing_rules(id);
+
+COMMENT ON COLUMN paliad.deadlines.procedural_event_id IS
+    'NULLABLE link to the procedural event this deadline instantiates. '
+    'Added Slice B.1 (mig 136). B.2 dual-write populates it on every new '
+    'deadline; B.3 cutover flips reads to use this instead of rule_id. '
+    'rule_id stays in place until B.4 destructive drop.';
+COMMENT ON COLUMN paliad.deadlines.sequencing_rule_id IS
+    'NULLABLE link to the sequencing rule. Same lifecycle as '
+    'procedural_event_id — added Slice B.1, dual-written B.2, read in B.3, '
+    'rule_id dropped in B.4.';
+
+CREATE INDEX deadlines_procedural_event_id_idx ON paliad.deadlines(procedural_event_id);
+CREATE INDEX deadlines_sequencing_rule_id_idx  ON paliad.deadlines(sequencing_rule_id);
+
+-- ---------------------------------------------------------------
+-- 5. BACKFILL — legal_sources
+-- ---------------------------------------------------------------
+
+INSERT INTO paliad.legal_sources (citation, jurisdiction)
+SELECT DISTINCT
+    legal_source AS citation,
+    COALESCE(NULLIF(split_part(legal_source, '.', 1), ''), 'other') AS jurisdiction
+  FROM paliad.deadline_rules
+ WHERE legal_source IS NOT NULL;
+
+-- ---------------------------------------------------------------
+-- 6. BACKFILL — procedural_events
+--    (a) codes-bearing branch: DISTINCT ON (submission_code) picks the
+--        lowest-id (tie-break sequence_order) deadline_rules row as the
+--        identity source per the design's §5.1 step 3.
+--    (b) NULL-code branch: one synthetic row per rule, code minted from
+--        the rule id's first 8 hex chars (sans dashes) — m's pick
+--        2026-05-26 (paliadin instruction).
+-- ---------------------------------------------------------------
+
+-- (a) codes-bearing rules → one procedural_events row per distinct code
+INSERT INTO paliad.procedural_events
+    (code, name, name_en, description, event_kind, primary_party_default,
+     legal_source_id, concept_id, lifecycle_state, published_at, is_active)
+SELECT
+    src.submission_code,
+    src.name,
+    src.name_en,
+    src.description,
+    src.event_type,
+    src.primary_party,
+    ls.id,
+    src.concept_id,
+    src.lifecycle_state,
+    src.published_at,
+    src.is_active
+FROM (
+    SELECT DISTINCT ON (submission_code)
+        submission_code, name, name_en, description, event_type,
+        primary_party, concept_id, legal_source, lifecycle_state,
+        published_at, is_active
+      FROM paliad.deadline_rules
+     WHERE submission_code IS NOT NULL
+     ORDER BY submission_code, id, sequence_order
+) src
+LEFT JOIN paliad.legal_sources ls ON ls.citation = src.legal_source;
+
+-- (b) NULL-code rules → one synthetic procedural_events row each
+INSERT INTO paliad.procedural_events
+    (code, name, name_en, description, event_kind, primary_party_default,
+     legal_source_id, concept_id, lifecycle_state, published_at, is_active)
+SELECT
+    'null.' || substring(replace(dr.id::text, '-', ''), 1, 8) AS code,
+    dr.name,
+    dr.name_en,
+    dr.description,
+    dr.event_type,
+    dr.primary_party,
+    ls.id,
+    dr.concept_id,
+    dr.lifecycle_state,
+    dr.published_at,
+    dr.is_active
+  FROM paliad.deadline_rules dr
+  LEFT JOIN paliad.legal_sources ls ON ls.citation = dr.legal_source
+ WHERE dr.submission_code IS NULL;
+
+-- ---------------------------------------------------------------
+-- 7. BACKFILL — sequencing_rules
+--    1:1 with deadline_rules. id inherited so deadlines.rule_id FKs
+--    continue to resolve through the dual-write window (design §5.1
+--    step 4). procedural_event_id resolved by JOIN on the (real or
+--    synthetic) code.
+-- ---------------------------------------------------------------
+
+INSERT INTO paliad.sequencing_rules
+    (id, procedural_event_id, proceeding_type_id, parent_id, trigger_event_id,
+     duration_value, duration_unit, timing,
+     alt_duration_value, alt_duration_unit, alt_rule_code, anchor_alt,
+     combine_op, condition_expr, primary_party, sequence_order,
+     is_spawn, spawn_label, spawn_proceeding_type_id,
+     is_bilateral, is_court_set, priority,
+     rule_code, rule_codes, deadline_notes, deadline_notes_en,
+     choices_offered, applies_to_target,
+     lifecycle_state, draft_of, published_at, is_active,
+     created_at, updated_at)
+SELECT
+    dr.id,
+    pe.id,
+    dr.proceeding_type_id,
+    dr.parent_id,
+    dr.trigger_event_id,
+    dr.duration_value, dr.duration_unit, dr.timing,
+    dr.alt_duration_value, dr.alt_duration_unit, dr.alt_rule_code, dr.anchor_alt,
+    dr.combine_op, dr.condition_expr, dr.primary_party, dr.sequence_order,
+    dr.is_spawn, dr.spawn_label, dr.spawn_proceeding_type_id,
+    dr.is_bilateral, dr.is_court_set, dr.priority,
+    dr.rule_code, dr.rule_codes, dr.deadline_notes, dr.deadline_notes_en,
+    dr.choices_offered, dr.applies_to_target,
+    dr.lifecycle_state,
+    -- draft_of is a self-FK on deadline_rules; preserve as a self-FK on
+    -- sequencing_rules since the inherited ids are stable across both.
+    dr.draft_of,
+    dr.published_at, dr.is_active,
+    dr.created_at, dr.updated_at
+  FROM paliad.deadline_rules dr
+  JOIN paliad.procedural_events pe
+    ON pe.code = COALESCE(
+         dr.submission_code,
+         'null.' || substring(replace(dr.id::text, '-', ''), 1, 8)
+       );
+
+-- ---------------------------------------------------------------
+-- 8. BACKFILL — paliad.deadlines link columns
+-- ---------------------------------------------------------------
+
+UPDATE paliad.deadlines d
+   SET procedural_event_id = sr.procedural_event_id,
+       sequencing_rule_id  = sr.id
+  FROM paliad.sequencing_rules sr
+ WHERE d.rule_id = sr.id;
+
+-- ---------------------------------------------------------------
+-- 9. POST pass — integrity assertions
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    v_dr_total           int;
+    v_dr_codes_distinct  int;
+    v_dr_codes_null      int;
+    v_dr_legal_distinct  int;
+    v_pe_total           int;
+    v_sr_total           int;
+    v_ls_total           int;
+    v_orphan_pe          int;
+    v_dup_synthetic      int;
+    v_deadlines_linked   int;
+    v_deadlines_total    int;
+    v_pe_missing_ls      int;
+BEGIN
+    SELECT COUNT(*)                    INTO v_dr_total          FROM paliad.deadline_rules;
+    SELECT COUNT(DISTINCT submission_code)
+                                       INTO v_dr_codes_distinct FROM paliad.deadline_rules WHERE submission_code IS NOT NULL;
+    SELECT COUNT(*)                    INTO v_dr_codes_null     FROM paliad.deadline_rules WHERE submission_code IS NULL;
+    SELECT COUNT(DISTINCT legal_source)
+                                       INTO v_dr_legal_distinct FROM paliad.deadline_rules WHERE legal_source IS NOT NULL;
+    SELECT COUNT(*)                    INTO v_pe_total          FROM paliad.procedural_events;
+    SELECT COUNT(*)                    INTO v_sr_total          FROM paliad.sequencing_rules;
+    SELECT COUNT(*)                    INTO v_ls_total          FROM paliad.legal_sources;
+    SELECT COUNT(*)                    INTO v_deadlines_total   FROM paliad.deadlines;
+    SELECT COUNT(*)                    INTO v_deadlines_linked  FROM paliad.deadlines WHERE procedural_event_id IS NOT NULL;
+
+    -- a. procedural_events row count = distinct_codes + null_codes
+    IF v_pe_total <> v_dr_codes_distinct + v_dr_codes_null THEN
+        RAISE EXCEPTION '[mig 136] FAILED POST: procedural_events count mismatch — got %, expected % (% distinct codes + % null-code rules)',
+            v_pe_total, v_dr_codes_distinct + v_dr_codes_null, v_dr_codes_distinct, v_dr_codes_null;
+    END IF;
+
+    -- b. sequencing_rules row count = deadline_rules row count (1:1)
+    IF v_sr_total <> v_dr_total THEN
+        RAISE EXCEPTION '[mig 136] FAILED POST: sequencing_rules count mismatch — got %, expected % (1:1 with deadline_rules)',
+            v_sr_total, v_dr_total;
+    END IF;
+
+    -- c. legal_sources row count = distinct legal_source in deadline_rules
+    IF v_ls_total <> v_dr_legal_distinct THEN
+        RAISE EXCEPTION '[mig 136] FAILED POST: legal_sources count mismatch — got %, expected % (distinct legal_source)',
+            v_ls_total, v_dr_legal_distinct;
+    END IF;
+
+    -- d. every sequencing_rules row's procedural_event_id resolves
+    SELECT COUNT(*)
+      INTO v_orphan_pe
+      FROM paliad.sequencing_rules sr
+      LEFT JOIN paliad.procedural_events pe ON pe.id = sr.procedural_event_id
+     WHERE pe.id IS NULL;
+    IF v_orphan_pe > 0 THEN
+        RAISE EXCEPTION '[mig 136] FAILED POST: % sequencing_rules row(s) have no resolving procedural_event_id', v_orphan_pe;
+    END IF;
+
+    -- e. no two synthetic codes collide (would have crashed the INSERT
+    --    via UNIQUE, but assert again for clarity — collision among 78
+    --    UUIDs at 8 hex chars is ~6e-7 probability)
+    SELECT COUNT(*)
+      INTO v_dup_synthetic
+      FROM (
+        SELECT code, COUNT(*) AS n
+          FROM paliad.procedural_events
+         WHERE code LIKE 'null.%'
+         GROUP BY code
+        HAVING COUNT(*) > 1
+      ) d;
+    IF v_dup_synthetic > 0 THEN
+        RAISE EXCEPTION '[mig 136] FAILED POST: % synthetic codes collided. '
+            'Re-run with a longer substring (16 hex chars instead of 8) '
+            'or full uuid in the code-mint expression.', v_dup_synthetic;
+    END IF;
+
+    -- f. every procedural_events.legal_source_id either resolves or is
+    --    NULL (NULL is fine — 119 of 231 rules have NULL legal_source)
+    SELECT COUNT(*)
+      INTO v_pe_missing_ls
+      FROM paliad.procedural_events pe
+      LEFT JOIN paliad.legal_sources ls ON ls.id = pe.legal_source_id
+     WHERE pe.legal_source_id IS NOT NULL
+       AND ls.id IS NULL;
+    IF v_pe_missing_ls > 0 THEN
+        RAISE EXCEPTION '[mig 136] FAILED POST: % procedural_events row(s) reference a missing legal_sources id', v_pe_missing_ls;
+    END IF;
+
+    RAISE NOTICE '[mig 136] POST: legal_sources=%, procedural_events=%, sequencing_rules=%, deadlines=% (% linked)',
+        v_ls_total, v_pe_total, v_sr_total, v_deadlines_total, v_deadlines_linked;
+    RAISE NOTICE '[mig 136] integrity OK — backfill complete. '
+                 'deadline_rules untouched (1:1 with sequencing_rules; '
+                 'ready for B.2 dual-write).';
+END $$;

internal/db/migrations/137_proceeding_role_labels.down.sql

@@ -0,0 +1,18 @@
+-- 137_proceeding_role_labels — DOWN
+--
+-- Drops the 4 role-label columns. Backfilled data is lost on
+-- down-migration; that's acceptable because the frontend renderer
+-- falls back to the default labels ("Klägerseite" / "Beklagtenseite")
+-- when the columns are absent.
+
+ALTER TABLE paliad.proceeding_types
+    DROP COLUMN IF EXISTS role_reactive_label_en;
+
+ALTER TABLE paliad.proceeding_types
+    DROP COLUMN IF EXISTS role_reactive_label_de;
+
+ALTER TABLE paliad.proceeding_types
+    DROP COLUMN IF EXISTS role_proactive_label_en;
+
+ALTER TABLE paliad.proceeding_types
+    DROP COLUMN IF EXISTS role_proactive_label_de;

internal/db/migrations/137_proceeding_role_labels.up.sql

@@ -0,0 +1,137 @@
+-- 137_proceeding_role_labels — t-paliad-301, m/paliad#132
+--
+-- Bug A fix: per-proceeding role labels so the Verfahrensablauf side
+-- selector can render "Berufungskläger / Berufungsbeklagter" for the
+-- unified UPC Berufung tile instead of the generic "Klägerseite /
+-- Beklagtenseite".
+--
+-- Four new optional columns on paliad.proceeding_types. NULL on a
+-- column falls back to the language-default ("Klägerseite" / "Claimant
+-- side" / "Beklagtenseite" / "Defendant side") in the frontend renderer.
+-- Only the proceedings whose role-naming actually differs get a backfill.
+--
+-- Live-DB audit (mcp__supabase__execute_sql) before drafting:
+--   - paliad.proceeding_types has 14 columns; the 4 target columns do
+--     NOT exist (zero name collisions).
+--   - Zero triggers on paliad.proceeding_types. No audit_reason
+--     setup needed.
+--   - No updated_at / created_at on the table — DO NOT include
+--     timestamp UPDATEs (lesson from mig 134 HOTFIX 3).
+--
+-- ADDITIVE ONLY. ALTER + UPDATE statements; no CHECK constraints
+-- (the columns are free-text labels, validated at the application layer).
+-- Down migration drops the 4 columns.
+--
+-- See m/paliad#132 for the full design rationale + the role-label
+-- matrix per proceeding code.
+
+-- ---------------------------------------------------------------
+-- 1. Schema additions
+-- ---------------------------------------------------------------
+
+ALTER TABLE paliad.proceeding_types
+    ADD COLUMN role_proactive_label_de text NULL;
+
+ALTER TABLE paliad.proceeding_types
+    ADD COLUMN role_proactive_label_en text NULL;
+
+ALTER TABLE paliad.proceeding_types
+    ADD COLUMN role_reactive_label_de text NULL;
+
+ALTER TABLE paliad.proceeding_types
+    ADD COLUMN role_reactive_label_en text NULL;
+
+COMMENT ON COLUMN paliad.proceeding_types.role_proactive_label_de IS
+    'DE label for the proactive (claimant-equivalent) side of this '
+    'proceeding. NULL = renderer falls back to "Klägerseite". '
+    't-paliad-301 / m/paliad#132 Bug A.';
+COMMENT ON COLUMN paliad.proceeding_types.role_proactive_label_en IS
+    'EN label for the proactive side. NULL = "Claimant side".';
+COMMENT ON COLUMN paliad.proceeding_types.role_reactive_label_de IS
+    'DE label for the reactive (defendant-equivalent) side. NULL = '
+    '"Beklagtenseite".';
+COMMENT ON COLUMN paliad.proceeding_types.role_reactive_label_en IS
+    'EN label for the reactive side. NULL = "Defendant side".';
+
+-- ---------------------------------------------------------------
+-- 2. Audit-first NOTICE pass.
+--
+-- Lists which proceeding_types are about to receive a backfill so
+-- the operator sees the scope before the UPDATE fires. NULL columns
+-- on every other row stay NULL (the frontend falls back to defaults).
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    rec record;
+    backfill_count int := 0;
+BEGIN
+    RAISE NOTICE '[mig 137] Proceedings that will receive role-label backfill:';
+    FOR rec IN
+        SELECT code, name
+          FROM paliad.proceeding_types
+         WHERE code IN ('upc.apl.unified', 'upc.rev.cfi', 'epa.opp.opd', 'epa.opp.boa')
+         ORDER BY code
+    LOOP
+        RAISE NOTICE '[mig 137]   %  %', rec.code, rec.name;
+        backfill_count := backfill_count + 1;
+    END LOOP;
+    RAISE NOTICE '[mig 137] Total: % proceedings (others stay NULL → renderer default)', backfill_count;
+END $$;
+
+-- ---------------------------------------------------------------
+-- 3. Backfill.
+--
+-- Per the design matrix in m/paliad#132:
+--   - upc.apl.unified → Berufungskläger / Berufungsbeklagter / Appellant / Appellee
+--   - upc.rev.cfi     → Antragsteller (Nichtigkeit) / Antragsgegner (Nichtigkeit) /
+--                       Revocation claimant / Revocation defendant
+--   - epa.opp.opd     → Einsprechende(r) / Patentinhaber(in) /
+--                       Opponent / Patentee
+--   - epa.opp.boa     → Einsprechende(r) / Patentinhaber(in) /
+--                       Opponent / Patentee
+--   - (others)        → stay NULL → frontend defaults
+-- ---------------------------------------------------------------
+
+UPDATE paliad.proceeding_types
+   SET role_proactive_label_de = 'Berufungskläger',
+       role_reactive_label_de  = 'Berufungsbeklagter',
+       role_proactive_label_en = 'Appellant',
+       role_reactive_label_en  = 'Appellee'
+ WHERE code = 'upc.apl.unified';
+
+UPDATE paliad.proceeding_types
+   SET role_proactive_label_de = 'Antragsteller (Nichtigkeit)',
+       role_reactive_label_de  = 'Antragsgegner (Nichtigkeit)',
+       role_proactive_label_en = 'Revocation claimant',
+       role_reactive_label_en  = 'Revocation defendant'
+ WHERE code = 'upc.rev.cfi';
+
+UPDATE paliad.proceeding_types
+   SET role_proactive_label_de = 'Einsprechende(r)',
+       role_reactive_label_de  = 'Patentinhaber(in)',
+       role_proactive_label_en = 'Opponent',
+       role_reactive_label_en  = 'Patentee'
+ WHERE code IN ('epa.opp.opd', 'epa.opp.boa');
+
+-- ---------------------------------------------------------------
+-- 4. Post-migration NOTICE — informational only.
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    rec record;
+BEGIN
+    RAISE NOTICE '[mig 137] post: backfilled role-label distribution:';
+    FOR rec IN
+        SELECT code,
+               role_proactive_label_de,
+               role_reactive_label_de
+          FROM paliad.proceeding_types
+         WHERE role_proactive_label_de IS NOT NULL
+         ORDER BY code
+    LOOP
+        RAISE NOTICE '[mig 137]   %  proactive=%  reactive=%',
+            rec.code, rec.role_proactive_label_de, rec.role_reactive_label_de;
+    END LOOP;
+END $$;

internal/db/migrations/138_appeal_target_backfill_merits_order.down.sql

@@ -0,0 +1,71 @@
+-- 138_appeal_target_backfill_merits_order DOWN — t-paliad-303, m/paliad#134
+--
+-- Removes 'schadensbemessung' from the merits-track rules and
+-- 'bucheinsicht' from the order-track rules, restoring the pre-137
+-- shape (endentscheidung-only / anordnung-only / kostenentscheidung-only).
+
+-- ---------------------------------------------------------------
+-- 0. Audit reason (required by mig 079 trigger for any UPDATE on
+--    paliad.deadline_rules).
+-- ---------------------------------------------------------------
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 138 DOWN: t-paliad-303 — strip Schadensbemessung/Bucheinsicht from applies_to_target per m/paliad#134',
+    true);
+
+-- ---------------------------------------------------------------
+-- 1. Strip new targets via array_remove.
+--
+-- WHERE clauses pinned to upc.apl.unified to avoid touching unrelated
+-- rules that might have been added later under other proceeding types.
+-- ---------------------------------------------------------------
+
+-- 1a. Remove schadensbemessung from merits-track rows.
+UPDATE paliad.deadline_rules dr
+   SET applies_to_target = array_remove(dr.applies_to_target, 'schadensbemessung')
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code = 'upc.apl.unified'
+   AND dr.is_active = true
+   AND 'schadensbemessung' = ANY(dr.applies_to_target);
+
+-- 1b. Remove bucheinsicht from order-track rows.
+UPDATE paliad.deadline_rules dr
+   SET applies_to_target = array_remove(dr.applies_to_target, 'bucheinsicht')
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code = 'upc.apl.unified'
+   AND dr.is_active = true
+   AND 'bucheinsicht' = ANY(dr.applies_to_target);
+
+-- ---------------------------------------------------------------
+-- 2. Sanity check — no row may carry the new targets after the down.
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    schad_left int;
+    buch_left int;
+BEGIN
+    SELECT COUNT(*) INTO schad_left
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified'
+       AND dr.is_active = true
+       AND 'schadensbemessung' = ANY(dr.applies_to_target);
+    SELECT COUNT(*) INTO buch_left
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified'
+       AND dr.is_active = true
+       AND 'bucheinsicht' = ANY(dr.applies_to_target);
+
+    IF schad_left > 0 THEN
+        RAISE EXCEPTION '[mig 138 DOWN] FAILED — % rows still carry schadensbemessung', schad_left;
+    END IF;
+    IF buch_left > 0 THEN
+        RAISE EXCEPTION '[mig 138 DOWN] FAILED — % rows still carry bucheinsicht', buch_left;
+    END IF;
+    RAISE NOTICE '[mig 138 DOWN] stripped schadensbemessung + bucheinsicht from upc.apl.unified rules';
+END $$;

internal/db/migrations/138_appeal_target_backfill_merits_order.up.sql

@@ -0,0 +1,232 @@
+-- 138_appeal_target_backfill_merits_order — t-paliad-303, m/paliad#134
+--
+-- Slice B1 (mig 134) introduced the unified upc.apl.unified proceeding type
+-- with 5 appeal_target enum values: endentscheidung, kostenentscheidung,
+-- anordnung, schadensbemessung, bucheinsicht. The first three each carry
+-- rules; schadensbemessung and bucheinsicht returned an empty timeline
+-- because no rules referenced them yet.
+--
+-- m's 2026-05-26 decision (#134): extend applies_to_target on the existing
+-- rules — Schadensbemessung := merits track (R.224 anchored on R.118
+-- substantive decisions), Bucheinsicht := order track (R.220.2 +
+-- R.224.2.b + R.235.2 + R.237 + R.238.2 etc.). Legal premise verified
+-- against the 16 live rules — every endentscheidung rule is a generic
+-- R.224 merits step, every anordnung rule is a generic R.220/224/235/237/
+-- 238 order step. No rule carries content specific to a particular kind
+-- of underlying decision/order. Audit on the comment trail of #134.
+
+-- ---------------------------------------------------------------
+-- 0. Audit reason (required by mig 079 trigger for any UPDATE on
+--    paliad.deadline_rules — both UPDATEs below trigger it).
+-- ---------------------------------------------------------------
+
+SELECT set_config(
+    'paliad.audit_reason',
+    'mig 138: t-paliad-303 — extend applies_to_target for Schadensbemessung (merits) + Bucheinsicht (order) per m/paliad#134',
+    true);
+
+-- ---------------------------------------------------------------
+-- 1. Audit-first DO block.
+--
+-- Resolve upc.apl.unified, count the rows we are about to touch, and
+-- RAISE EXCEPTION if anything looks wrong (proceeding type missing,
+-- merits/order rule counts off, or a rule already carries the new
+-- target — which would mean an earlier partial run).
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    rec record;
+    upc_apl_id int;
+    merits_count int;
+    order_count int;
+    schad_already int;
+    buch_already int;
+BEGIN
+    SELECT id INTO upc_apl_id
+      FROM paliad.proceeding_types
+     WHERE code = 'upc.apl.unified';
+    IF upc_apl_id IS NULL THEN
+        RAISE EXCEPTION '[mig 138] upc.apl.unified proceeding_type not found — mig 134 must run first';
+    END IF;
+    RAISE NOTICE '[mig 138] upc.apl.unified proceeding_type_id = %', upc_apl_id;
+
+    SELECT COUNT(*) INTO merits_count
+      FROM paliad.deadline_rules
+     WHERE proceeding_type_id = upc_apl_id
+       AND is_active = true
+       AND 'endentscheidung' = ANY(applies_to_target);
+    SELECT COUNT(*) INTO order_count
+      FROM paliad.deadline_rules
+     WHERE proceeding_type_id = upc_apl_id
+       AND is_active = true
+       AND 'anordnung' = ANY(applies_to_target);
+
+    RAISE NOTICE '[mig 138] live counts: endentscheidung=% anordnung=%', merits_count, order_count;
+    IF merits_count <> 7 THEN
+        RAISE EXCEPTION '[mig 138] expected 7 endentscheidung rules under upc.apl.unified, got %', merits_count;
+    END IF;
+    IF order_count <> 7 THEN
+        RAISE EXCEPTION '[mig 138] expected 7 anordnung rules under upc.apl.unified, got %', order_count;
+    END IF;
+
+    SELECT COUNT(*) INTO schad_already
+      FROM paliad.deadline_rules
+     WHERE proceeding_type_id = upc_apl_id
+       AND is_active = true
+       AND 'schadensbemessung' = ANY(applies_to_target);
+    SELECT COUNT(*) INTO buch_already
+      FROM paliad.deadline_rules
+     WHERE proceeding_type_id = upc_apl_id
+       AND is_active = true
+       AND 'bucheinsicht' = ANY(applies_to_target);
+    IF schad_already > 0 THEN
+        RAISE EXCEPTION '[mig 138] % rules already carry schadensbemessung — partial run?', schad_already;
+    END IF;
+    IF buch_already > 0 THEN
+        RAISE EXCEPTION '[mig 138] % rules already carry bucheinsicht — partial run?', buch_already;
+    END IF;
+
+    RAISE NOTICE '[mig 138] rules to extend with schadensbemessung (merits track):';
+    FOR rec IN
+        SELECT dr.id, dr.rule_code, dr.legal_source, dr.name, dr.applies_to_target
+          FROM paliad.deadline_rules dr
+         WHERE dr.proceeding_type_id = upc_apl_id
+           AND dr.is_active = true
+           AND 'endentscheidung' = ANY(dr.applies_to_target)
+         ORDER BY dr.sequence_order, dr.rule_code NULLS LAST
+    LOOP
+        RAISE NOTICE '[mig 138]   merits  %  %  %  pre=%  →  post=%',
+            COALESCE(rec.rule_code, '(no-code)'),
+            COALESCE(rec.legal_source, '(no-source)'),
+            rec.name,
+            rec.applies_to_target,
+            rec.applies_to_target || 'schadensbemessung'::text;
+    END LOOP;
+
+    RAISE NOTICE '[mig 138] rules to extend with bucheinsicht (order track):';
+    FOR rec IN
+        SELECT dr.id, dr.rule_code, dr.legal_source, dr.name, dr.applies_to_target
+          FROM paliad.deadline_rules dr
+         WHERE dr.proceeding_type_id = upc_apl_id
+           AND dr.is_active = true
+           AND 'anordnung' = ANY(dr.applies_to_target)
+         ORDER BY dr.sequence_order, dr.rule_code NULLS LAST
+    LOOP
+        RAISE NOTICE '[mig 138]   order   %  %  %  pre=%  →  post=%',
+            COALESCE(rec.rule_code, '(no-code)'),
+            COALESCE(rec.legal_source, '(no-source)'),
+            rec.name,
+            rec.applies_to_target,
+            rec.applies_to_target || 'bucheinsicht'::text;
+    END LOOP;
+END $$;
+
+-- ---------------------------------------------------------------
+-- 2. Extend applies_to_target.
+--
+-- Narrow WHERE clauses key off upc.apl.unified + existing target +
+-- absence of new target, so the UPDATEs are idempotent in spirit
+-- (the audit block above already RAISE EXCEPTIONed if any row
+-- already had the new value).
+-- ---------------------------------------------------------------
+
+-- 2a. Schadensbemessung := merits track (7 rules expected).
+UPDATE paliad.deadline_rules dr
+   SET applies_to_target = applies_to_target || 'schadensbemessung'::text
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code = 'upc.apl.unified'
+   AND dr.is_active = true
+   AND 'endentscheidung' = ANY(dr.applies_to_target)
+   AND NOT ('schadensbemessung' = ANY(dr.applies_to_target));
+
+-- 2b. Bucheinsicht := order track (7 rules expected).
+UPDATE paliad.deadline_rules dr
+   SET applies_to_target = applies_to_target || 'bucheinsicht'::text
+  FROM paliad.proceeding_types pt
+ WHERE pt.id = dr.proceeding_type_id
+   AND pt.code = 'upc.apl.unified'
+   AND dr.is_active = true
+   AND 'anordnung' = ANY(dr.applies_to_target)
+   AND NOT ('bucheinsicht' = ANY(dr.applies_to_target));
+
+-- ---------------------------------------------------------------
+-- 3. Post-migration sanity check.
+--
+-- Hard-fail on any divergence: the two new targets must each cover
+-- 7 rules, the original three targets must be unchanged in count,
+-- and no rule has lost its prior target.
+-- ---------------------------------------------------------------
+
+DO $$
+DECLARE
+    schad_post int;
+    buch_post int;
+    end_post int;
+    anord_post int;
+    cost_post int;
+    target_distribution record;
+BEGIN
+    SELECT COUNT(*) INTO schad_post
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified'
+       AND dr.is_active = true
+       AND 'schadensbemessung' = ANY(dr.applies_to_target);
+    SELECT COUNT(*) INTO buch_post
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified'
+       AND dr.is_active = true
+       AND 'bucheinsicht' = ANY(dr.applies_to_target);
+    SELECT COUNT(*) INTO end_post
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified'
+       AND dr.is_active = true
+       AND 'endentscheidung' = ANY(dr.applies_to_target);
+    SELECT COUNT(*) INTO anord_post
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified'
+       AND dr.is_active = true
+       AND 'anordnung' = ANY(dr.applies_to_target);
+    SELECT COUNT(*) INTO cost_post
+      FROM paliad.deadline_rules dr
+      JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+     WHERE pt.code = 'upc.apl.unified'
+       AND dr.is_active = true
+       AND 'kostenentscheidung' = ANY(dr.applies_to_target);
+
+    RAISE NOTICE '[mig 138] post: schadensbemessung=%  bucheinsicht=%  endentscheidung=%  anordnung=%  kostenentscheidung=%',
+        schad_post, buch_post, end_post, anord_post, cost_post;
+
+    IF schad_post <> 7 THEN
+        RAISE EXCEPTION '[mig 138] FAILED — expected 7 schadensbemessung rules, got %', schad_post;
+    END IF;
+    IF buch_post <> 7 THEN
+        RAISE EXCEPTION '[mig 138] FAILED — expected 7 bucheinsicht rules, got %', buch_post;
+    END IF;
+    IF end_post <> 7 THEN
+        RAISE EXCEPTION '[mig 138] FAILED — endentscheidung count drifted: expected 7, got %', end_post;
+    END IF;
+    IF anord_post <> 7 THEN
+        RAISE EXCEPTION '[mig 138] FAILED — anordnung count drifted: expected 7, got %', anord_post;
+    END IF;
+    IF cost_post <> 2 THEN
+        RAISE EXCEPTION '[mig 138] FAILED — kostenentscheidung count drifted: expected 2, got %', cost_post;
+    END IF;
+
+    FOR target_distribution IN
+        SELECT unnest(applies_to_target) AS target, COUNT(*) AS n
+          FROM paliad.deadline_rules dr
+          JOIN paliad.proceeding_types pt ON pt.id = dr.proceeding_type_id
+         WHERE pt.code = 'upc.apl.unified' AND dr.is_active = true
+         GROUP BY unnest(applies_to_target)
+         ORDER BY 1
+    LOOP
+        RAISE NOTICE '[mig 138] post: applies_to_target=%  count=%',
+            target_distribution.target, target_distribution.n;
+    END LOOP;
+END $$;

internal/db/migrations/145_scenarios.down.sql

@@ -0,0 +1,13 @@
+-- 145_scenarios — DOWN
+--
+-- Reverses mig 145. Drops the FK on paliad.projects, the table, the
+-- trigger function, and the RLS policies (CASCADE on table drop kills
+-- policies). Any data in paliad.scenarios is lost on down.
+
+ALTER TABLE paliad.projects
+    DROP COLUMN IF EXISTS active_scenario_id;
+
+DROP TRIGGER IF EXISTS scenarios_touch_updated_at_trg ON paliad.scenarios;
+DROP FUNCTION IF EXISTS paliad.scenarios_touch_updated_at();
+
+DROP TABLE IF EXISTS paliad.scenarios CASCADE;

internal/db/migrations/145_scenarios.up.sql

@@ -0,0 +1,170 @@
+-- 145_scenarios — Slice D, m/paliad#124 §5 (revised)
+--
+-- Creates paliad.scenarios + paliad.projects.active_scenario_id FK.
+-- A scenario is a named composition of existing proceedings + flags
+-- + per-card choices + anchor dates the user can switch between for
+-- a project (project_id NOT NULL) OR save as an abstract template on
+-- /tools/verfahrensablauf (project_id IS NULL).
+--
+-- m's 2026-05-26 picks (AskUserQuestion round, doc commit 6e58595):
+--   Q1: composition shape  → primary+spawned (v1); multi-proceeding
+--                            peer compose is the v2 goal. spec.jsonb
+--                            architected for N entries from day 1.
+--   Q2: scope              → per-project + abstract.
+--   Q3: trigger dates      → per-anchor overrides over one base date.
+--   Q4: storage            → NEW paliad.scenarios table with jsonb
+--                            spec (NOT a project_event_choices column
+--                            extension).
+--
+-- "users should not add their own rules" (m, t-paliad-301) — scenarios
+-- compose existing rules, never author new ones. spec.proceedings[*].code
+-- must resolve to an existing active paliad.proceeding_types row;
+-- spec.proceedings[*].anchor_overrides keys must resolve to existing
+-- submission_codes. Validation happens at the application layer
+-- (ScenarioService.validateSpec) — not in DB CHECK constraints (too
+-- expensive to express in pure SQL).
+--
+-- Migration number: 145. Coordination check 2026-05-26 17:38: curie's
+-- B.2-B.6 migrations land in the 139-143 range. 144 reserved as buffer.
+-- 145 is the next safe claim.
+--
+-- ADDITIVE ONLY: CREATE TABLE, ALTER ADD COLUMN, indexes, RLS policies.
+-- Down drops everything. No backfill (zero existing scenarios on day 1).
+--
+-- See docs/design-litigation-planner-2026-05-26.md §5 + §18.4 for the
+-- design.
+
+-- ---------------------------------------------------------------
+-- 1. The scenarios table
+-- ---------------------------------------------------------------
+
+CREATE TABLE paliad.scenarios (
+    id          uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    -- project_id NULL = abstract scenario (saved Verfahrensablauf
+    -- template, no Akte). project_id NOT NULL = scenario attached to
+    -- a real Akte.
+    project_id  uuid NULL REFERENCES paliad.projects(id) ON DELETE CASCADE,
+    name        text NOT NULL,
+    description text NULL,
+    -- spec carries the full composition. Shape documented in the
+    -- design doc §5; the application validates structure before write.
+    spec        jsonb NOT NULL,
+    created_by  uuid NULL REFERENCES paliad.users(id) ON DELETE SET NULL,
+    created_at  timestamptz NOT NULL DEFAULT now(),
+    updated_at  timestamptz NOT NULL DEFAULT now(),
+
+    -- Within a single project, scenario names are unique. Abstract
+    -- scenarios are unique per (created_by, name) so two users can
+    -- each keep a "with_ccr" template without colliding. NULLS NOT
+    -- DISTINCT means a single user can have one "name" per
+    -- (project_id, created_by) tuple, where NULL project_id +
+    -- NULL created_by is a single global namespace (used only by
+    -- seed / system scenarios — none today).
+    CONSTRAINT scenarios_unique_per_scope
+        UNIQUE NULLS NOT DISTINCT (project_id, created_by, name),
+
+    -- Non-empty name.
+    CONSTRAINT scenarios_name_nonempty CHECK (char_length(name) > 0),
+
+    -- Non-empty spec — at least an object. The application checks
+    -- structure (version, proceedings[], base_trigger_date format).
+    CONSTRAINT scenarios_spec_object CHECK (jsonb_typeof(spec) = 'object')
+);
+
+CREATE INDEX scenarios_project_id_idx
+    ON paliad.scenarios(project_id) WHERE project_id IS NOT NULL;
+
+CREATE INDEX scenarios_abstract_user_idx
+    ON paliad.scenarios(created_by) WHERE project_id IS NULL;
+
+COMMENT ON TABLE paliad.scenarios IS
+    'Named compositions of existing proceedings + flags + per-card '
+    'choices + anchor dates. project_id NULL = abstract template; '
+    'project_id NOT NULL = attached to an Akte. Design: '
+    'docs/design-litigation-planner-2026-05-26.md §5. (Slice D)';
+
+COMMENT ON COLUMN paliad.scenarios.spec IS
+    'jsonb composition spec. Shape: {version: int, base_trigger_date: '
+    'ISO date, proceedings: [{code, role, flags[], per_card_choices, '
+    'anchor_overrides, skip_rules[]}, ...]}. Validated at write-time '
+    'by ScenarioService.validateSpec.';
+
+-- ---------------------------------------------------------------
+-- 2. paliad.projects.active_scenario_id FK
+--
+-- NULL = use today's ad-hoc per-card choice state from
+-- paliad.project_event_choices (pre-scenario behaviour preserved).
+-- Non-NULL = the project's current SmartTimeline / Akte-Fristenrechner
+-- render reads from this scenario's spec instead.
+-- ---------------------------------------------------------------
+
+ALTER TABLE paliad.projects
+    ADD COLUMN active_scenario_id uuid NULL
+        REFERENCES paliad.scenarios(id) ON DELETE SET NULL;
+
+COMMENT ON COLUMN paliad.projects.active_scenario_id IS
+    'FK to paliad.scenarios. NULL = read choices from '
+    'paliad.project_event_choices (legacy). Non-NULL = read from the '
+    'pointed scenario.spec.';
+
+-- ---------------------------------------------------------------
+-- 3. RLS — mirror paliad.project_event_choices's pattern (mig 129).
+--
+-- Project-scoped scenarios (project_id NOT NULL) inherit team visibility
+-- via paliad.can_see_project. Abstract scenarios (project_id IS NULL)
+-- are private to created_by — only the author can read / write them.
+-- ---------------------------------------------------------------
+
+ALTER TABLE paliad.scenarios ENABLE ROW LEVEL SECURITY;
+
+-- Project-scoped: team visibility.
+DROP POLICY IF EXISTS scenarios_project_select ON paliad.scenarios;
+CREATE POLICY scenarios_project_select ON paliad.scenarios
+    FOR SELECT
+    USING (project_id IS NOT NULL AND paliad.can_see_project(project_id));
+
+DROP POLICY IF EXISTS scenarios_project_mutate ON paliad.scenarios;
+CREATE POLICY scenarios_project_mutate ON paliad.scenarios
+    FOR ALL
+    USING (project_id IS NOT NULL AND paliad.can_see_project(project_id))
+    WITH CHECK (project_id IS NOT NULL AND paliad.can_see_project(project_id));
+
+-- Abstract: owner-only.
+DROP POLICY IF EXISTS scenarios_abstract_select ON paliad.scenarios;
+CREATE POLICY scenarios_abstract_select ON paliad.scenarios
+    FOR SELECT
+    USING (project_id IS NULL AND created_by = auth.uid());
+
+DROP POLICY IF EXISTS scenarios_abstract_mutate ON paliad.scenarios;
+CREATE POLICY scenarios_abstract_mutate ON paliad.scenarios
+    FOR ALL
+    USING (project_id IS NULL AND created_by = auth.uid())
+    WITH CHECK (project_id IS NULL AND created_by = auth.uid());
+
+-- ---------------------------------------------------------------
+-- 4. updated_at trigger (mirrors other paliad tables that carry
+-- updated_at — keep it in lockstep with row mutations).
+-- ---------------------------------------------------------------
+
+CREATE OR REPLACE FUNCTION paliad.scenarios_touch_updated_at()
+    RETURNS trigger AS $$
+BEGIN
+    NEW.updated_at = now();
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER scenarios_touch_updated_at_trg
+    BEFORE UPDATE ON paliad.scenarios
+    FOR EACH ROW
+    EXECUTE FUNCTION paliad.scenarios_touch_updated_at();
+
+-- ---------------------------------------------------------------
+-- 5. Informational NOTICE — schema-only migration, zero rows added.
+-- ---------------------------------------------------------------
+
+DO $$
+BEGIN
+    RAISE NOTICE '[mig 145] paliad.scenarios created (0 rows; awaits API usage)';
+    RAISE NOTICE '[mig 145] paliad.projects.active_scenario_id added (all rows NULL initially)';
+END $$;

internal/db/testdata/README.md

@@ -0,0 +1,69 @@
+# `internal/db/testdata/` — CI snapshot
+
+## `prod-snapshot.sql`
+
+Schema-only `pg_dump` of paliad's prod DB (youpc-supabase paliad schema)
+plus the rows of `paliad.applied_migrations` that match this branch's
+on-disk migration set.
+
+**Purpose.** Lets CI's migration smoke (`.gitea/workflows/test.yaml`)
+restore a Postgres scratch DB to "paliad at HEAD-of-snapshot" without
+having to replay 131 migrations from scratch. ApplyMigrations on the
+restored DB sees the applied set and only runs whatever NEW migrations
+this PR adds — exactly the integration shape we want to test, and the
+same shape prod sees on every deploy.
+
+**Why a snapshot at all.** Running ApplyMigrations from scratch against a
+fresh `supabase/postgres:15.8.1.060` surfaces multiple fresh-DB
+idempotence bugs in historical migrations (raw `COMMIT;` in mig 051,
+missing `CREATE EXTENSION pg_trgm` for mig 037, ALTER POLICY
+exception-handler gaps in mig 024/027 — the last is fixed in this PR).
+Fixing them all is a separate cleanup. The snapshot sidesteps them by
+starting CI from a state where every historical migration is already
+applied as it was in prod.
+
+**Schema scope.** `--schema=paliad` only. Auth schema comes baked into
+`supabase/postgres`; CI's setup step installs `pg_trgm` before restoring.
+
+**Ownership.** `--no-owner --no-privileges` keeps the dump portable
+across role topologies (CI's supabase_admin / postgres / authenticated /
+anon don't have to match prod's exact role layout). The role-split smoke
+relies on `postgres` being a non-superuser, which is true on
+supabase/postgres by default.
+
+**Refresh.** Run `make refresh-snapshot` with `PALIAD_PROD_DATABASE_URL`
+set to a Postgres URL with `pg_dump` rights on youpc-supabase. The
+target appends data rows for `paliad.applied_migrations`, strips
+`\restrict` / `\unrestrict` commands (pg 16 dump → pg 15 restore), and
+filters out applied-migrations rows for versions beyond the branch's
+local max. The CI workflow consumes the resulting file verbatim.
+
+**Verify a refresh.** Boot a local scratch:
+
+```bash
+docker run -d --rm --name paliad-snap \
+  -e POSTGRES_PASSWORD=ci -e POSTGRES_DB=paliad_scratch \
+  -p 15433:5432 supabase/postgres:15.8.1.060
+sleep 5
+docker exec -e PGPASSWORD=ci paliad-snap psql -h localhost -U supabase_admin -d paliad_scratch \
+  -c "GRANT CREATE ON DATABASE paliad_scratch TO postgres;" \
+  -c "CREATE EXTENSION IF NOT EXISTS pg_trgm;"
+cat internal/db/testdata/prod-snapshot.sql | docker exec -i -e PGPASSWORD=ci paliad-snap \
+  psql -h localhost -U postgres -d paliad_scratch -v ON_ERROR_STOP=1
+TEST_DATABASE_URL="postgres://postgres:ci@localhost:15433/paliad_scratch?sslmode=disable" \
+TEST_APP_DATABASE_URL="postgres://postgres:ci@localhost:15433/paliad_scratch?sslmode=disable" \
+  go test -count=1 -run 'TestMigrations|TestBootSmoke|TestHealthReady_Live' ./internal/db/ ./cmd/server/
+docker stop paliad-snap
+```
+
+All four named tests must pass. If any fails after a refresh,
+investigate before merging — usually because a new migration was added
+to prod that this branch doesn't have on disk yet.
+
+**Why is the snapshot not gzipped?** Small enough (~200 KB) that the
+diff stays human-readable in `git diff` reviews. If it crosses ~1 MB,
+gzip + decompress-on-restore in CI.
+
+**Privacy.** Schema-only dump, no row data from any paliad table (except
+`paliad.applied_migrations`, which contains migration filenames +
+checksums — public info already in the repo).

internal/handlers/admin_rules.go

@@ -299,21 +299,6 @@ func handleAdminPreviewRule(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, resp)
 }
 
-// GET /admin/api/rules/export-migrations?since=<audit_id>
-func handleAdminExportRuleMigrations(w http.ResponseWriter, r *http.Request) {
-	if dbSvc == nil || dbSvc.ruleEditor == nil {
-		writeJSON(w, http.StatusServiceUnavailable, map[string]string{"error": "rule editor unavailable"})
-		return
-	}
-	since := r.URL.Query().Get("since")
-	out, err := dbSvc.ruleEditor.ExportMigrationsSince(r.Context(), since)
-	if err != nil {
-		writeRuleEditorError(w, err)
-		return
-	}
-	writeJSON(w, http.StatusOK, out)
-}
-
 // =============================================================================
 // Page handlers — serve the static SPA shells. Auth + admin gate live
 // at the route registration in handlers.go.
@@ -327,10 +312,6 @@ func handleAdminRulesEditPage(w http.ResponseWriter, r *http.Request) {
 	http.ServeFile(w, r, "dist/admin-rules-edit.html")
 }
 
-func handleAdminRulesExportPage(w http.ResponseWriter, r *http.Request) {
-	http.ServeFile(w, r, "dist/admin-rules-export.html")
-}
-
 // =============================================================================
 // helpers
 // =============================================================================

internal/handlers/event_choices.go

@@ -0,0 +1,113 @@
+package handlers
+
+// HTTP handlers for paliad.project_event_choices (t-paliad-265 / m/paliad#96).
+//
+// Three endpoints:
+//   GET    /api/projects/{id}/event-choices            → list
+//   PUT    /api/projects/{id}/event-choices            → upsert one
+//   DELETE /api/projects/{id}/event-choices/{submission_code}/{choice_kind}
+//
+// All three gated by visibility on the project (paliad.can_see_project)
+// via EventChoiceService.
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+
+	"github.com/google/uuid"
+
+	"mgit.msbls.de/m/paliad/internal/services"
+)
+
+// GET /api/projects/{id}/event-choices
+func handleListProjectEventChoices(w http.ResponseWriter, r *http.Request) {
+	if !requireDB(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	if dbSvc.eventChoice == nil {
+		writeJSON(w, http.StatusServiceUnavailable, map[string]string{"error": "event-choice service not configured"})
+		return
+	}
+	projectID, err := uuid.Parse(r.PathValue("id"))
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid project id"})
+		return
+	}
+	rows, err := dbSvc.eventChoice.ListForProject(r.Context(), uid, projectID)
+	if err != nil {
+		writeServiceError(w, err)
+		return
+	}
+	writeJSON(w, http.StatusOK, rows)
+}
+
+// PUT /api/projects/{id}/event-choices — upsert one row.
+func handlePutProjectEventChoice(w http.ResponseWriter, r *http.Request) {
+	if !requireDB(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	if dbSvc.eventChoice == nil {
+		writeJSON(w, http.StatusServiceUnavailable, map[string]string{"error": "event-choice service not configured"})
+		return
+	}
+	projectID, err := uuid.Parse(r.PathValue("id"))
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid project id"})
+		return
+	}
+	var input services.UpsertEventChoiceInput
+	if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid JSON body"})
+		return
+	}
+	row, err := dbSvc.eventChoice.Upsert(r.Context(), uid, projectID, input)
+	if err != nil {
+		if errors.Is(err, services.ErrInvalidInput) {
+			writeJSON(w, http.StatusBadRequest, map[string]string{"error": err.Error()})
+			return
+		}
+		writeServiceError(w, err)
+		return
+	}
+	writeJSON(w, http.StatusOK, row)
+}
+
+// DELETE /api/projects/{id}/event-choices/{submission_code}/{choice_kind}
+func handleDeleteProjectEventChoice(w http.ResponseWriter, r *http.Request) {
+	if !requireDB(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	if dbSvc.eventChoice == nil {
+		writeJSON(w, http.StatusServiceUnavailable, map[string]string{"error": "event-choice service not configured"})
+		return
+	}
+	projectID, err := uuid.Parse(r.PathValue("id"))
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid project id"})
+		return
+	}
+	submissionCode := r.PathValue("submission_code")
+	choiceKind := r.PathValue("choice_kind")
+	if err := dbSvc.eventChoice.Delete(r.Context(), uid, projectID, submissionCode, choiceKind); err != nil {
+		if errors.Is(err, services.ErrInvalidInput) {
+			writeJSON(w, http.StatusBadRequest, map[string]string{"error": err.Error()})
+			return
+		}
+		writeServiceError(w, err)
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}

internal/handlers/files.go

@@ -79,6 +79,38 @@ var fileRegistry = map[string]fileEntry{
 		RepoName:     "mWorkRepo",
 		FilePath:     "6 - material/Templates/Word/Paliad/" + branding.Name + "/_skeleton.docx",
 	},
+	// Firm-formatted skeleton (t-paliad-275). Carries the same 48-key
+	// placeholder bag as the universal _skeleton.docx, but additionally
+	// preserves every HL paragraph + character style from the HL Patents
+	// Style .dotm (HLpat-Heading-H1..H5, HLpat-Body-B0, HLpat-Header-Section,
+	// HLpat-Table-Recitals-*, HLpat-Signature, …) and the firm letterhead
+	// (header logo + firm-address footer). Slotted ahead of the universal
+	// skeleton in the fallback chain so any submission_code without a
+	// dedicated per-code template still renders as a real firm-branded
+	// Schriftsatz with variables substituted, rather than a plain skeleton.
+	// Generated via scripts/gen-hl-skeleton-template against the .dotm.
+	firmSkeletonSubmissionSlug: {
+		RawURL:       "https://mgit.msbls.de/m/mWorkRepo/raw/branch/main/6%20-%20material/Templates/Word/Paliad/" + branding.Name + "/_firm-skeleton.docx",
+		DownloadName: branding.Name + " — Firm Schriftsatz-Skelett.docx",
+		ContentType:  "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+		RepoOwner:    "m",
+		RepoName:     "mWorkRepo",
+		FilePath:     "6 - material/Templates/Word/Paliad/" + branding.Name + "/_firm-skeleton.docx",
+	},
+	// English skeleton variant (t-paliad-276). Sibling of
+	// `_skeleton.docx`; used when a draft's language='en' and no
+	// per-code EN template exists. If the file isn't authored yet in
+	// mWorkRepo, the Gitea fetch fails and resolveSubmissionTemplate
+	// falls through to the DE skeleton — visible to the user as the
+	// "Fallback: universelles Skelett" notice on the draft editor.
+	skeletonSubmissionENSlug: {
+		RawURL:       "https://mgit.msbls.de/m/mWorkRepo/raw/branch/main/6%20-%20material/Templates/Word/Paliad/" + branding.Name + "/_skeleton.en.docx",
+		DownloadName: branding.Name + " — Submission skeleton.docx",
+		ContentType:  "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+		RepoOwner:    "m",
+		RepoName:     "mWorkRepo",
+		FilePath:     "6 - material/Templates/Word/Paliad/" + branding.Name + "/_skeleton.en.docx",
+	},
 }
 
 // skeletonSubmissionSlug names the universal skeleton template inside
@@ -87,6 +119,19 @@ var fileRegistry = map[string]fileEntry{
 // the same string the registry uses.
 const skeletonSubmissionSlug = "submission/_skeleton.docx"
 
+// firmSkeletonSubmissionSlug names the firm-formatted skeleton template
+// inside the shared fileRegistry cache (t-paliad-275). Same placeholder
+// surface as skeletonSubmissionSlug; carries HL paragraph + character
+// styles from the source .dotm on top. Sits between the per-code
+// template and the generic universal skeleton in the fallback chain so
+// codes without a dedicated template still render with firm branding.
+const firmSkeletonSubmissionSlug = "submission/_firm-skeleton.docx"
+
+// skeletonSubmissionENSlug names the English skeleton variant used when
+// a draft's language='en' and no per-code EN template exists
+// (t-paliad-276). Same role as skeletonSubmissionSlug but in EN.
+const skeletonSubmissionENSlug = "submission/_skeleton.en.docx"
+
 // submissionTemplateRegistry maps a deadline-rule submission_code to a
 // fileRegistry slug. Lookup order matches the cronus design fallback
 // chain §8: per-firm `templates/{FIRM_NAME}/{code}.docx` first, then
@@ -96,14 +141,32 @@ const skeletonSubmissionSlug = "submission/_skeleton.docx"
 // the file itself lives in mWorkRepo and is served through the shared
 // Gitea proxy cache so refreshes are visible to all consumers in one
 // place.
+//
+// t-paliad-276: codes that ship an EN sibling
+// (e.g. `de.inf.lg.erwidg.en.docx`) also register it in
+// submissionTemplateENRegistry; the language-aware lookup
+// (resolveSubmissionTemplate(ctx, code, lang)) prefers the language-
+// suffixed slug and falls back to the unsuffixed one when no per-firm
+// EN variant exists.
 var submissionTemplateRegistry = map[string]string{
 	"de.inf.lg.erwidg": "submission/de.inf.lg.erwidg.docx",
 }
 
+// submissionTemplateENRegistry maps a submission_code to the EN
+// variant slug. Empty when no EN template has been authored — the
+// lookup falls through to the unsuffixed (DE-baked) template and the
+// editor surfaces the "Fallback: universelles Skelett" notice when
+// even the skeleton has no EN sibling.
+var submissionTemplateENRegistry = map[string]string{}
+
 // fetchSubmissionTemplateBytes returns the per-submission_code template
 // bytes (and provenance SHA) when one is registered. The bool result
 // distinguishes "no per-code template registered" (callers fall back to
 // HL Patents Style) from an upstream fetch error.
+//
+// Language-suffixed variants (t-paliad-276) are served via
+// fetchSubmissionTemplateBytesForLang — this base function returns the
+// unsuffixed registry entry only (the legacy DE-baked template).
 func fetchSubmissionTemplateBytes(ctx context.Context, submissionCode string) ([]byte, string, bool, error) {
 	slug, ok := submissionTemplateRegistry[submissionCode]
 	if !ok {
@@ -209,6 +272,113 @@ func handleFileRefresh(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]string{"ok": "true", "message": "Cache cleared"})
 }
 
+// fetchSubmissionTemplateBytesForLang returns the per-(code, lang)
+// template bytes when a language-suffixed variant is registered. Used
+// only for the EN variant today; DE goes through the unsuffixed
+// fetchSubmissionTemplateBytes (which is the legacy / authoritative
+// DE registry). t-paliad-276.
+//
+// Returned bool = "variant registered AND fetched OK". A registered
+// variant whose file 404s on Gitea returns (nil, "", false, nil) so
+// the caller falls through to the unsuffixed template, mirroring the
+// behaviour for unregistered codes.
+func fetchSubmissionTemplateBytesForLang(ctx context.Context, submissionCode, lang string) ([]byte, string, bool, error) {
+	if lang != "en" {
+		// Only EN has a separate registry today. DE goes through the
+		// unsuffixed path which is the authoritative DE template.
+		return nil, "", false, nil
+	}
+	slug, ok := submissionTemplateENRegistry[submissionCode]
+	if !ok {
+		return nil, "", false, nil
+	}
+	entry, ok := fileRegistry[slug]
+	if !ok {
+		return nil, "", false, fmt.Errorf("file proxy: submission template slug %q not registered", slug)
+	}
+	ce := getCacheEntry(slug)
+
+	ce.mu.RLock()
+	hasData := len(ce.data) > 0
+	needsCheck := time.Since(ce.lastChecked) >= checkInterval
+	ce.mu.RUnlock()
+
+	if !hasData {
+		if err := fileFetch(ce, entry); err != nil {
+			// Treat upstream miss as "variant unavailable" so the
+			// resolver falls through to the DE template instead of
+			// surfacing a 502.
+			log.Printf("file proxy: EN variant fetch failed for %s (%s): %v — falling through", submissionCode, slug, err)
+			return nil, "", false, nil
+		}
+	} else if needsCheck {
+		go fileCheckAndRefresh(ce, entry)
+	}
+
+	ce.mu.RLock()
+	defer ce.mu.RUnlock()
+	if len(ce.data) == 0 {
+		return nil, "", false, nil
+	}
+	out := make([]byte, len(ce.data))
+	copy(out, ce.data)
+	_ = ctx
+	return out, ce.sha, true, nil
+}
+
+// fetchSubmissionSkeletonBytesForLang returns the cached skeleton
+// template bytes for the requested language. EN falls back to DE when
+// the EN skeleton hasn't been authored yet (t-paliad-276). Returned
+// bool flags whether the bytes match the requested language — false
+// means the resolver should communicate "fallback" to the UI.
+func fetchSubmissionSkeletonBytesForLang(ctx context.Context, lang string) ([]byte, string, bool, error) {
+	if lang == "en" {
+		entry, ok := fileRegistry[skeletonSubmissionENSlug]
+		if ok {
+			ce := getCacheEntry(skeletonSubmissionENSlug)
+			ce.mu.RLock()
+			hasData := len(ce.data) > 0
+			needsCheck := time.Since(ce.lastChecked) >= checkInterval
+			ce.mu.RUnlock()
+			if !hasData {
+				if err := fileFetch(ce, entry); err == nil {
+					ce.mu.RLock()
+					if len(ce.data) > 0 {
+						out := make([]byte, len(ce.data))
+						copy(out, ce.data)
+						sha := ce.sha
+						ce.mu.RUnlock()
+						return out, sha, true, nil
+					}
+					ce.mu.RUnlock()
+				} else {
+					log.Printf("file proxy: EN skeleton fetch failed (%s): %v — falling back to DE", skeletonSubmissionENSlug, err)
+				}
+			} else {
+				if needsCheck {
+					go fileCheckAndRefresh(ce, entry)
+				}
+				ce.mu.RLock()
+				if len(ce.data) > 0 {
+					out := make([]byte, len(ce.data))
+					copy(out, ce.data)
+					sha := ce.sha
+					ce.mu.RUnlock()
+					return out, sha, true, nil
+				}
+				ce.mu.RUnlock()
+			}
+		}
+	}
+	// Fall through to the DE skeleton; bool=false flags that the
+	// returned bytes don't carry the requested language.
+	bytes, sha, err := fetchSubmissionSkeletonBytes(ctx)
+	if err != nil {
+		return nil, "", false, err
+	}
+	return bytes, sha, lang == "de", nil
+}
+
 // fetchSubmissionSkeletonBytes returns the cached universal skeleton
 // template bytes plus its provenance SHA. Sits between the per-firm
 // per-submission_code template (fetchSubmissionTemplateBytes) and the
@@ -219,11 +389,28 @@ func handleFileRefresh(w http.ResponseWriter, r *http.Request) {
 // call warms the cache synchronously from mWorkRepo via Gitea; later
 // calls return immediately while a background refresh runs.
 func fetchSubmissionSkeletonBytes(ctx context.Context) ([]byte, string, error) {
-	entry, ok := fileRegistry[skeletonSubmissionSlug]
+	return fetchSubmissionTemplateSlug(ctx, skeletonSubmissionSlug)
+}
+
+// fetchFirmSkeletonBytes returns the cached firm-formatted skeleton
+// template bytes (HL paragraph/character styles + 48-key placeholder
+// bag) plus its provenance SHA. Sits between the per-code template and
+// the generic universal skeleton in resolveSubmissionTemplate's
+// fallback chain (t-paliad-275). Same stale-while-revalidate caching
+// as the other Gitea-backed template parts.
+func fetchFirmSkeletonBytes(ctx context.Context) ([]byte, string, error) {
+	return fetchSubmissionTemplateSlug(ctx, firmSkeletonSubmissionSlug)
+}
+
+// fetchSubmissionTemplateSlug is the shared cache-aware fetcher used by
+// the firm-skeleton and universal-skeleton accessors. Factored out so
+// the two paths can't drift apart on caching semantics.
+func fetchSubmissionTemplateSlug(ctx context.Context, slug string) ([]byte, string, error) {
+	entry, ok := fileRegistry[slug]
 	if !ok {
-		return nil, "", fmt.Errorf("file proxy: %s not registered", skeletonSubmissionSlug)
+		return nil, "", fmt.Errorf("file proxy: %s not registered", slug)
 	}
-	ce := getCacheEntry(skeletonSubmissionSlug)
+	ce := getCacheEntry(slug)
 
 	ce.mu.RLock()
 	hasData := len(ce.data) > 0
@@ -241,7 +428,7 @@ func fetchSubmissionSkeletonBytes(ctx context.Context) ([]byte, string, error) {
 	ce.mu.RLock()
 	defer ce.mu.RUnlock()
 	if len(ce.data) == 0 {
-		return nil, "", fmt.Errorf("file proxy: %s cache empty after fetch", skeletonSubmissionSlug)
+		return nil, "", fmt.Errorf("file proxy: %s cache empty after fetch", slug)
 	}
 	out := make([]byte, len(ce.data))
 	copy(out, ce.data)

internal/handlers/fristenrechner.go

@@ -5,6 +5,9 @@ import (
 	"errors"
 	"net/http"
 
+	"github.com/google/uuid"
+
+	"mgit.msbls.de/m/paliad/internal/models"
 	"mgit.msbls.de/m/paliad/internal/services"
 )
 
@@ -51,6 +54,29 @@ func handleFristenrechnerAPI(w http.ResponseWriter, r *http.Request) {
 		Flags           []string          `json:"flags,omitempty"`
 		AnchorOverrides map[string]string `json:"anchorOverrides,omitempty"`
 		CourtID         string            `json:"courtId,omitempty"`
+		// t-paliad-265: per-event-card choices. Two parallel inputs:
+		// - ProjectID lets the server pull persisted choices from
+		//   paliad.project_event_choices (project-bound /tools/fristenrechner).
+		// - PerCardChoices lets the unbound /tools/verfahrensablauf
+		//   send an inline-CSV-decoded list straight off the URL
+		//   without persisting. When both are present the inline list
+		//   wins (what-if exploration overrides the saved state).
+		ProjectID       string                                  `json:"projectId,omitempty"`
+		PerCardChoices  []services.UpsertEventChoiceInput       `json:"perCardChoices,omitempty"`
+		// t-paliad-290 (m/paliad#122): re-surface previously-hidden
+		// optional cards. When true the calculator marks skipped rows
+		// with UIDeadline.IsHidden instead of dropping them; descendants
+		// stay in the result list. Default false preserves the legacy
+		// suppression. HiddenCount on the response is independent.
+		IncludeHidden bool `json:"includeHidden,omitempty"`
+		// Slice B1 / m/paliad#124 §18.1: narrows the unified UPC
+		// Berufung (upc.apl) timeline to the rule subset whose
+		// applies_to_target contains the requested slug. Empty = no
+		// filter. Valid values: endentscheidung | kostenentscheidung
+		// | anordnung | schadensbemessung | bucheinsicht. Unknown
+		// slugs are silently dropped (no filter) so a stale frontend
+		// chip doesn't 400 the request.
+		AppealTarget string `json:"appealTarget,omitempty"`
 	}
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "Ungültige Anfrage"})
@@ -61,11 +87,44 @@ func handleFristenrechnerAPI(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Fold per-card choices into the CalcOptions addendum. The inline
+	// PerCardChoices wins over the persisted ProjectID lookup when both
+	// are non-empty.
+	var addendum services.CalcOptionsAddendum
+	if len(req.PerCardChoices) > 0 {
+		choices := make([]models.ProjectEventChoice, 0, len(req.PerCardChoices))
+		for _, c := range req.PerCardChoices {
+			choices = append(choices, models.ProjectEventChoice{
+				SubmissionCode: c.SubmissionCode,
+				ChoiceKind:     c.ChoiceKind,
+				ChoiceValue:    c.ChoiceValue,
+			})
+		}
+		addendum = services.ToCalcOptionsAddendum(choices)
+	} else if req.ProjectID != "" && dbSvc.eventChoice != nil {
+		if pid, err := uuid.Parse(req.ProjectID); err == nil {
+			if uid, ok := requireUser(w, r); ok {
+				if choices, err := dbSvc.eventChoice.ListForProject(r.Context(), uid, pid); err == nil {
+					addendum = services.ToCalcOptionsAddendum(choices)
+				}
+				// Visibility-filtered lookup: a non-visible project
+				// returns ErrNotVisible from ListForProject; in that
+				// case we project without per-card overlays rather
+				// than 404 — the timeline itself is non-PII data.
+			}
+		}
+	}
+
 	resp, err := dbSvc.fristenrechner.Calculate(r.Context(), req.ProceedingType, req.TriggerDate, services.CalcOptions{
-		PriorityDateStr: req.PriorityDate,
-		Flags:           req.Flags,
-		AnchorOverrides: req.AnchorOverrides,
-		CourtID:         req.CourtID,
+		PriorityDateStr:  req.PriorityDate,
+		Flags:            req.Flags,
+		AnchorOverrides:  req.AnchorOverrides,
+		CourtID:          req.CourtID,
+		PerCardAppellant: addendum.PerCardAppellant,
+		SkipRules:        addendum.SkipRules,
+		IncludeCCRFor:    addendum.IncludeCCRFor,
+		IncludeHidden:    req.IncludeHidden,
+		AppealTarget:     req.AppealTarget,
 	})
 	if err != nil {
 		if errors.Is(err, services.ErrUnknownProceedingType) {

internal/handlers/handlers.go

@@ -1,9 +1,13 @@
 package handlers
 
 import (
+	"context"
 	"encoding/json"
 	"net/http"
 	"strings"
+	"time"
+
+	"github.com/jmoiron/sqlx"
 
 	"mgit.msbls.de/m/paliad/internal/auth"
 	"mgit.msbls.de/m/paliad/internal/services"
@@ -50,6 +54,12 @@ func noCachePages(h http.Handler) http.Handler {
 // Services bundles the Phase B + C database-backed services. Pass nil if
 // DATABASE_URL was unset; the matter-management endpoints will return 503.
 type Services struct {
+	// Pool is the raw connection pool. Held so the readiness probe
+	// (/health/ready) can ping it without going through any individual
+	// service. nil when DATABASE_URL was unset — in that case
+	// /health/ready returns 503.
+	Pool *sqlx.DB
+
 	Project        *services.ProjectService
 	Team           *services.TeamService
 	PartnerUnit    *services.PartnerUnitService
@@ -106,6 +116,15 @@ type Services struct {
 	// t-paliad-238 — dedicated Submissions/Schriftsätze editor.
 	SubmissionDraft *services.SubmissionDraftService
 
+	// t-paliad-265 / m/paliad#96 — per-event-card optional choices on
+	// the Verfahrensablauf timeline.
+	EventChoice *services.EventChoiceService
+
+	// Slice D (m/paliad#124 §5, mig 145) — named scenario compositions
+	// per project or as abstract templates. Nil when DATABASE_URL is
+	// unset; the /api/scenarios routes return 503 in that case.
+	Scenario *services.ScenarioService
+
 	// Paliadin is wired when DATABASE_URL is set. The concrete backend
 	// is picked in cmd/server/main.go based on PALIADIN_REMOTE_HOST
 	// (remote → mRiver via SSH) or local tmux availability. Stays nil
@@ -169,6 +188,8 @@ func Register(mux *http.ServeMux, client *auth.Client, giteaAPIToken string, svc
 			export:          svc.Export,
 			backup:          svc.Backup,
 			submissionDraft: svc.SubmissionDraft,
+			eventChoice:     svc.EventChoice,
+			scenario:        svc.Scenario,
 		}
 	}
 
@@ -183,6 +204,38 @@ func Register(mux *http.ServeMux, client *auth.Client, giteaAPIToken string, svc
 		_, _ = w.Write([]byte("ok\n"))
 	})
 
+	// Readiness probe. Public, no auth. Distinct from /healthz: this
+	// returns 200 only when the DB pool is reachable. Reaching Register
+	// at all implies db.ApplyMigrations succeeded (cmd/server/main.go
+	// calls it before constructing svc), so a 200 here means "migrations
+	// applied AND pool responsive" — the contract Dokploy / Traefik should
+	// gate on, not the bind-and-serve check that /healthz answers.
+	//
+	// Three outcomes:
+	//   - svc == nil OR svc.Pool == nil  → 503 (DB-less knowledge-platform
+	//     deployments report not-ready so an external orchestrator can
+	//     distinguish them from a full prod boot).
+	//   - PingContext fails within 2 s   → 503 (pool unreachable).
+	//   - PingContext succeeds            → 200 "ready".
+	//
+	// Used by docker-compose.yml's healthcheck (Slice B) and by the
+	// post-deploy verification step in .gitea/workflows/test.yaml.
+	mux.HandleFunc("GET /health/ready", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Cache-Control", "no-store")
+		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+		if svc == nil || svc.Pool == nil {
+			http.Error(w, "db not configured\n", http.StatusServiceUnavailable)
+			return
+		}
+		ctx, cancel := context.WithTimeout(r.Context(), 2*time.Second)
+		defer cancel()
+		if err := svc.Pool.PingContext(ctx); err != nil {
+			http.Error(w, "db unreachable\n", http.StatusServiceUnavailable)
+			return
+		}
+		_, _ = w.Write([]byte("ready\n"))
+	})
+
 	// API endpoints (JSON, public)
 	mux.HandleFunc("POST /api/login", handleAPILogin)
 	mux.HandleFunc("POST /api/register", handleAPIRegister)
@@ -355,6 +408,10 @@ func Register(mux *http.ServeMux, client *auth.Client, giteaAPIToken string, svc
 	protected.HandleFunc("PATCH /api/submission-drafts/{draft_id}", handleGlobalPatchSubmissionDraft)
 	protected.HandleFunc("DELETE /api/submission-drafts/{draft_id}", handleGlobalDeleteSubmissionDraft)
 	protected.HandleFunc("POST /api/submission-drafts/{draft_id}/export", handleGlobalExportSubmissionDraft)
+	// t-paliad-277 / m/paliad#109 — refresh project-derived variables on
+	// the draft. Strips overrides for project.* / parties.* / deadline.*
+	// / procedural_event.* / rule.* prefixes and bumps last_imported_at.
+	protected.HandleFunc("POST /api/submission-drafts/{draft_id}/import-from-project", handleImportFromProject)
 	// /counterclaim creates a CCR sub-project linked via the new
 	// paliad.projects.counterclaim_of FK (t-paliad-174 Slice 3).
 	protected.HandleFunc("POST /api/projects/{id}/counterclaim", handleCreateProjectCounterclaim)
@@ -390,6 +447,20 @@ func Register(mux *http.ServeMux, client *auth.Client, giteaAPIToken string, svc
 	protected.HandleFunc("POST /api/projects/{id}/partner-units", handleAttachPartnerUnit)
 	protected.HandleFunc("DELETE /api/projects/{id}/partner-units/{unit_id}", handleDetachPartnerUnit)
 
+	// t-paliad-265 — per-event-card choices on the Verfahrensablauf timeline.
+	protected.HandleFunc("GET /api/projects/{id}/event-choices", handleListProjectEventChoices)
+	protected.HandleFunc("PUT /api/projects/{id}/event-choices", handlePutProjectEventChoice)
+	protected.HandleFunc("DELETE /api/projects/{id}/event-choices/{submission_code}/{choice_kind}", handleDeleteProjectEventChoice)
+
+	// Slice D (m/paliad#124 §5, mig 145) — named scenario compositions
+	// per project or as abstract templates on /tools/verfahrensablauf.
+	protected.HandleFunc("GET /api/scenarios", handleScenariosList)
+	protected.HandleFunc("GET /api/scenarios/{id}", handleScenarioGet)
+	protected.HandleFunc("POST /api/scenarios", handleScenarioCreate)
+	protected.HandleFunc("PATCH /api/scenarios/{id}", handleScenarioPatch)
+	protected.HandleFunc("DELETE /api/scenarios/{id}", handleScenarioDelete)
+	protected.HandleFunc("PUT /api/projects/{id}/active-scenario", handleSetActiveScenario)
+
 	// Partner units (structural partner-led units; legacy "Dezernate").
 	protected.HandleFunc("GET /api/partner-units", handleListPartnerUnits)
 	protected.HandleFunc("POST /api/partner-units", handleCreatePartnerUnit)
@@ -402,6 +473,7 @@ func Register(mux *http.ServeMux, client *auth.Client, giteaAPIToken string, svc
 	// t-paliad-139 — set unit_role on a member.
 	protected.HandleFunc("PATCH /api/partner-units/{id}/members/{user_id}/role", handleSetUnitMemberRole)
 
+	protected.HandleFunc("GET /api/parties/search", handlePartiesSearch)
 	protected.HandleFunc("DELETE /api/parties/{id}", handleDeleteParty)
 
 	// Phase F — Appointments (appointments)
@@ -613,10 +685,8 @@ func Register(mux *http.ServeMux, client *auth.Client, giteaAPIToken string, svc
 		// t-paliad-191 Slice 11a — admin rule-editor API.
 		// t-paliad-192 Slice 11b — admin rule-editor UI pages + orphan list/resolve.
 		protected.HandleFunc("GET /admin/rules", adminGate(users, gateOnboarded(handleAdminRulesListPage)))
-		protected.HandleFunc("GET /admin/rules/export", adminGate(users, gateOnboarded(handleAdminRulesExportPage)))
 		protected.HandleFunc("GET /admin/rules/{id}/edit", adminGate(users, gateOnboarded(handleAdminRulesEditPage)))
 		protected.HandleFunc("GET /admin/api/rules", adminGate(users, handleAdminListRules))
-		protected.HandleFunc("GET /admin/api/rules/export-migrations", adminGate(users, handleAdminExportRuleMigrations))
 		protected.HandleFunc("GET /admin/api/rules/{id}", adminGate(users, handleAdminGetRule))
 		protected.HandleFunc("POST /admin/api/rules", adminGate(users, handleAdminCreateRule))
 		protected.HandleFunc("PATCH /admin/api/rules/{id}", adminGate(users, handleAdminPatchRule))

internal/handlers/projects.go

@@ -68,6 +68,12 @@ type dbServices struct {
 
 	// t-paliad-238 — submission draft editor.
 	submissionDraft *services.SubmissionDraftService
+
+	// t-paliad-265 — per-event-card optional choices.
+	eventChoice *services.EventChoiceService
+
+	// Slice D — named scenario compositions (m/paliad#124 §5).
+	scenario *services.ScenarioService
 }
 
 var dbSvc *dbServices
@@ -698,6 +704,31 @@ func handleCreateParty(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusCreated, p)
 }
 
+// GET /api/parties/search?q=...
+//
+// Cross-project party picker for the submission-draft editor
+// (t-paliad-287). Returns up to 25 parties from every project the
+// caller can see, matched by case-insensitive substring on name or
+// representative. Empty q returns the 20 most-recently-updated rows so
+// the picker isn't blank on first open. Visibility is enforced in the
+// service layer via the same predicate every project-scoped read uses.
+func handlePartiesSearch(w http.ResponseWriter, r *http.Request) {
+	if !requireDB(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	q := r.URL.Query().Get("q")
+	hits, err := dbSvc.parties.Search(r.Context(), uid, q, 25)
+	if err != nil {
+		writeServiceError(w, err)
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"results": hits})
+}
+
 // DELETE /api/parties/{id}
 func handleDeleteParty(w http.ResponseWriter, r *http.Request) {
 	if !requireDB(w) {

internal/handlers/scenarios.go

@@ -0,0 +1,216 @@
+package handlers
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+
+	"github.com/google/uuid"
+
+	"mgit.msbls.de/m/paliad/internal/services"
+	lp "mgit.msbls.de/m/paliad/pkg/litigationplanner"
+)
+
+// Slice D (m/paliad#124 §5, mig 145) — REST endpoints for paliad.scenarios.
+//
+// Routes (registered in handlers.go):
+//
+//	GET    /api/scenarios?project=<id>     — list project's scenarios
+//	GET    /api/scenarios?abstract=true    — list caller's abstract scenarios
+//	GET    /api/scenarios/{id}             — fetch one
+//	POST   /api/scenarios                  — create
+//	PATCH  /api/scenarios/{id}             — partial update
+//	PUT    /api/projects/{id}/active-scenario  — set/clear active scenario
+//	DELETE /api/scenarios/{id}             — remove
+//
+// All endpoints require auth; visibility is enforced by
+// ScenarioService.requireProjectVisible / requireVisible.
+
+func requireScenarioService(w http.ResponseWriter) bool {
+	if dbSvc == nil || dbSvc.scenario == nil {
+		writeJSON(w, http.StatusServiceUnavailable, map[string]string{
+			"error": "Szenarien sind vorübergehend nicht verfügbar (keine Datenbank).",
+		})
+		return false
+	}
+	return true
+}
+
+// scenarioErrorToStatus maps service errors to HTTP statuses. Mirrors
+// the patterns in projects.go and event_choices.go.
+func scenarioErrorToStatus(err error) (int, string) {
+	switch {
+	case errors.Is(err, lp.ErrUnknownScenario), errors.Is(err, services.ErrScenarioNotVisible):
+		return http.StatusNotFound, "Szenario nicht gefunden"
+	case errors.Is(err, services.ErrInvalidInput), errors.Is(err, lp.ErrInvalidScenario), errors.Is(err, lp.ErrScenarioNoPrimary):
+		return http.StatusBadRequest, err.Error()
+	}
+	return http.StatusInternalServerError, err.Error()
+}
+
+// handleScenariosList — GET /api/scenarios?project=<uuid> OR ?abstract=true.
+func handleScenariosList(w http.ResponseWriter, r *http.Request) {
+	if !requireScenarioService(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+
+	abstract := r.URL.Query().Get("abstract") == "true"
+	projectStr := r.URL.Query().Get("project")
+	switch {
+	case abstract:
+		out, err := dbSvc.scenario.ListAbstractForUser(r.Context(), uid)
+		if err != nil {
+			status, msg := scenarioErrorToStatus(err)
+			writeJSON(w, status, map[string]string{"error": msg})
+			return
+		}
+		writeJSON(w, http.StatusOK, out)
+	case projectStr != "":
+		pid, err := uuid.Parse(projectStr)
+		if err != nil {
+			writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige project ID"})
+			return
+		}
+		out, err := dbSvc.scenario.ListForProject(r.Context(), uid, pid)
+		if err != nil {
+			status, msg := scenarioErrorToStatus(err)
+			writeJSON(w, status, map[string]string{"error": msg})
+			return
+		}
+		writeJSON(w, http.StatusOK, out)
+	default:
+		writeJSON(w, http.StatusBadRequest, map[string]string{
+			"error": "?project=<uuid> oder ?abstract=true erforderlich",
+		})
+	}
+}
+
+// handleScenarioGet — GET /api/scenarios/{id}.
+func handleScenarioGet(w http.ResponseWriter, r *http.Request) {
+	if !requireScenarioService(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	id, err := uuid.Parse(r.PathValue("id"))
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige ID"})
+		return
+	}
+	out, err := dbSvc.scenario.Get(r.Context(), uid, id)
+	if err != nil {
+		status, msg := scenarioErrorToStatus(err)
+		writeJSON(w, status, map[string]string{"error": msg})
+		return
+	}
+	writeJSON(w, http.StatusOK, out)
+}
+
+// handleScenarioCreate — POST /api/scenarios.
+func handleScenarioCreate(w http.ResponseWriter, r *http.Request) {
+	if !requireScenarioService(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	var input services.CreateScenarioInput
+	if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige Anfrage"})
+		return
+	}
+	out, err := dbSvc.scenario.Create(r.Context(), uid, input)
+	if err != nil {
+		status, msg := scenarioErrorToStatus(err)
+		writeJSON(w, status, map[string]string{"error": msg})
+		return
+	}
+	writeJSON(w, http.StatusCreated, out)
+}
+
+// handleScenarioPatch — PATCH /api/scenarios/{id}.
+func handleScenarioPatch(w http.ResponseWriter, r *http.Request) {
+	if !requireScenarioService(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	id, err := uuid.Parse(r.PathValue("id"))
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige ID"})
+		return
+	}
+	var input services.PatchScenarioInput
+	if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige Anfrage"})
+		return
+	}
+	out, err := dbSvc.scenario.Patch(r.Context(), uid, id, input)
+	if err != nil {
+		status, msg := scenarioErrorToStatus(err)
+		writeJSON(w, status, map[string]string{"error": msg})
+		return
+	}
+	writeJSON(w, http.StatusOK, out)
+}
+
+// handleScenarioDelete — DELETE /api/scenarios/{id}.
+func handleScenarioDelete(w http.ResponseWriter, r *http.Request) {
+	if !requireScenarioService(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	id, err := uuid.Parse(r.PathValue("id"))
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige ID"})
+		return
+	}
+	if err := dbSvc.scenario.Delete(r.Context(), uid, id); err != nil {
+		status, msg := scenarioErrorToStatus(err)
+		writeJSON(w, status, map[string]string{"error": msg})
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// handleSetActiveScenario — PUT /api/projects/{id}/active-scenario.
+// Body: {"scenario_id": "<uuid>"} or {"scenario_id": null} to clear.
+func handleSetActiveScenario(w http.ResponseWriter, r *http.Request) {
+	if !requireScenarioService(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	pid, err := uuid.Parse(r.PathValue("id"))
+	if err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige project ID"})
+		return
+	}
+	var body struct {
+		ScenarioID *uuid.UUID `json:"scenario_id"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+		writeJSON(w, http.StatusBadRequest, map[string]string{"error": "ungültige Anfrage"})
+		return
+	}
+	if err := dbSvc.scenario.SetActive(r.Context(), uid, pid, body.ScenarioID); err != nil {
+		status, msg := scenarioErrorToStatus(err)
+		writeJSON(w, status, map[string]string{"error": msg})
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}

internal/handlers/submission_drafts.go

@@ -60,38 +60,65 @@ const submissionDraftExportTimeout = 30 * time.Second
 // raw row plus the resolved bag and the rule metadata the sidebar uses
 // to label each variable group.
 type submissionDraftView struct {
-	Draft           submissionDraftJSON      `json:"draft"`
-	Rule            *submissionRuleSummary   `json:"rule,omitempty"`
-	ResolvedBag     services.PlaceholderMap  `json:"resolved_bag"`
-	MergedBag       services.PlaceholderMap  `json:"merged_bag"`
-	PreviewHTML     string                   `json:"preview_html"`
-	Lang            string                   `json:"lang"`
-	HasTemplate     bool                     `json:"has_template"`
-	TemplateMissing bool                     `json:"template_missing,omitempty"`
+	Draft           submissionDraftJSON     `json:"draft"`
+	Rule            *submissionRuleSummary  `json:"rule,omitempty"`
+	ResolvedBag     services.PlaceholderMap `json:"resolved_bag"`
+	MergedBag       services.PlaceholderMap `json:"merged_bag"`
+	PreviewHTML     string                  `json:"preview_html"`
+	Lang            string                  `json:"lang"`
+	HasTemplate     bool                    `json:"has_template"`
+	TemplateMissing bool                    `json:"template_missing,omitempty"`
+	// TemplateTier identifies which tier of resolveSubmissionTemplate
+	// produced the bytes — one of per_code_lang, per_code, skeleton_lang,
+	// skeleton, letterhead. Lets the editor distinguish a perfect
+	// per-firm match from a skeleton fallback. t-paliad-276.
+	TemplateTier string `json:"template_tier,omitempty"`
+	// LanguageFallback is true when the requested draft.language has no
+	// per-firm per-code template (e.g. EN draft falls back to the DE
+	// per-code template, or to the universal skeleton). UI surfaces a
+	// notice so the lawyer knows the rendered body lacks language-
+	// matched code-specific prose. t-paliad-276.
+	LanguageFallback bool `json:"language_fallback,omitempty"`
+	// AvailableParties is the project's full party roster (t-paliad-277)
+	// so the frontend can render the multi-select picker in one round-
+	// trip. Empty when the draft has no project attached.
+	AvailableParties []submissionDraftPartyJSON `json:"available_parties"`
+}
+
+// submissionDraftPartyJSON is the minimal party row the editor sidebar
+// needs to render a checkbox + role chip per party.
+type submissionDraftPartyJSON struct {
+	ID             uuid.UUID `json:"id"`
+	Name           string    `json:"name"`
+	Role           string    `json:"role,omitempty"`
+	Representative string    `json:"representative,omitempty"`
 }
 
 type submissionDraftJSON struct {
-	ID              uuid.UUID                `json:"id"`
-	ProjectID       *uuid.UUID               `json:"project_id"`
-	SubmissionCode  string                   `json:"submission_code"`
-	UserID          uuid.UUID                `json:"user_id"`
-	Name            string                   `json:"name"`
-	Variables       services.PlaceholderMap  `json:"variables"`
-	LastExportedAt  *time.Time               `json:"last_exported_at,omitempty"`
-	LastExportedSHA *string                  `json:"last_exported_sha,omitempty"`
-	CreatedAt       time.Time                `json:"created_at"`
-	UpdatedAt       time.Time                `json:"updated_at"`
+	ID              uuid.UUID               `json:"id"`
+	ProjectID       *uuid.UUID              `json:"project_id"`
+	SubmissionCode  string                  `json:"submission_code"`
+	UserID          uuid.UUID               `json:"user_id"`
+	Name            string                  `json:"name"`
+	Language        string                  `json:"language"`
+	Variables       services.PlaceholderMap `json:"variables"`
+	SelectedParties []uuid.UUID             `json:"selected_parties"`
+	LastExportedAt  *time.Time              `json:"last_exported_at,omitempty"`
+	LastExportedSHA *string                 `json:"last_exported_sha,omitempty"`
+	LastImportedAt  *time.Time              `json:"last_imported_at,omitempty"`
+	CreatedAt       time.Time               `json:"created_at"`
+	UpdatedAt       time.Time               `json:"updated_at"`
 }
 
 type submissionRuleSummary struct {
-	Name                 string  `json:"name"`
-	NameEN               string  `json:"name_en"`
-	SubmissionCode       string  `json:"submission_code"`
-	PrimaryParty         string  `json:"primary_party,omitempty"`
-	EventType            string  `json:"event_type,omitempty"`
-	LegalSource          string  `json:"legal_source,omitempty"`
-	LegalSourcePretty    string  `json:"legal_source_pretty,omitempty"`
-	LegalSourcePrettyEN  string  `json:"legal_source_pretty_en,omitempty"`
+	Name                string `json:"name"`
+	NameEN              string `json:"name_en"`
+	SubmissionCode      string `json:"submission_code"`
+	PrimaryParty        string `json:"primary_party,omitempty"`
+	EventType           string `json:"event_type,omitempty"`
+	LegalSource         string `json:"legal_source,omitempty"`
+	LegalSourcePretty   string `json:"legal_source_pretty,omitempty"`
+	LegalSourcePrettyEN string `json:"legal_source_pretty_en,omitempty"`
 }
 
 type submissionDraftListResponse struct {
@@ -101,8 +128,10 @@ type submissionDraftListResponse struct {
 }
 
 type submissionDraftPatchInput struct {
-	Name      *string                  `json:"name,omitempty"`
-	Variables *services.PlaceholderMap `json:"variables,omitempty"`
+	Name            *string                  `json:"name,omitempty"`
+	Variables       *services.PlaceholderMap `json:"variables,omitempty"`
+	SelectedParties *[]uuid.UUID             `json:"selected_parties,omitempty"`
+	Language        *string                  `json:"language,omitempty"`
 }
 
 // ─────────────────────────────────────────────────────────────────────
@@ -337,7 +366,12 @@ func handlePatchSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	patch := services.DraftPatch{Name: input.Name, Variables: input.Variables}
+	patch := services.DraftPatch{
+		Name:            input.Name,
+		Variables:       input.Variables,
+		SelectedParties: input.SelectedParties,
+		Language:        input.Language,
+	}
 	d, err := dbSvc.submissionDraft.Update(r.Context(), uid, draftID, patch)
 	if err != nil {
 		writeSubmissionDraftServiceError(w, err)
@@ -418,7 +452,7 @@ func handlePreviewSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 		writeSubmissionDraftServiceError(w, err)
 		return
 	}
-	tplBytes, _, err := resolveSubmissionTemplate(ctx, d.SubmissionCode)
+	tplBytes, _, _, err := resolveSubmissionTemplate(ctx, d.SubmissionCode, d.Language)
 	if err != nil {
 		log.Printf("submission_drafts: template fetch (draft=%s): %v", draftID, err)
 		writeJSON(w, http.StatusBadGateway, map[string]string{"error": "template upstream unreachable"})
@@ -467,7 +501,7 @@ func handleExportSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 		writeSubmissionDraftServiceError(w, err)
 		return
 	}
-	tplBytes, tplSHA, err := resolveSubmissionTemplate(ctx, d.SubmissionCode)
+	tplBytes, tplSHA, _, err := resolveSubmissionTemplate(ctx, d.SubmissionCode, d.Language)
 	if err != nil {
 		log.Printf("submission_drafts: export template fetch (draft=%s): %v", draftID, err)
 		writeJSON(w, http.StatusBadGateway, map[string]string{"error": "template upstream unreachable"})
@@ -670,18 +704,24 @@ func handleGetGlobalSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 type globalDraftPatchInput struct {
 	Name      *string                  `json:"name,omitempty"`
 	Variables *services.PlaceholderMap `json:"variables,omitempty"`
+	Language  *string                  `json:"language,omitempty"`
 	// projectIDProvided is true when the JSON included the "project_id"
 	// key (regardless of value); needed to distinguish "no change" from
 	// "set to null". Set by the custom UnmarshalJSON below.
 	ProjectID         *uuid.UUID `json:"project_id,omitempty"`
 	projectIDProvided bool
+	// SelectedParties: present-but-empty array resets to "all parties",
+	// present non-empty array restricts to subset, absent = no change.
+	SelectedParties *[]uuid.UUID `json:"selected_parties,omitempty"`
 }
 
 func (g *globalDraftPatchInput) UnmarshalJSON(data []byte) error {
 	type alias struct {
-		Name      *string                  `json:"name,omitempty"`
-		Variables *services.PlaceholderMap `json:"variables,omitempty"`
-		ProjectID *uuid.UUID               `json:"project_id,omitempty"`
+		Name            *string                  `json:"name,omitempty"`
+		Variables       *services.PlaceholderMap `json:"variables,omitempty"`
+		Language        *string                  `json:"language,omitempty"`
+		ProjectID       *uuid.UUID               `json:"project_id,omitempty"`
+		SelectedParties *[]uuid.UUID             `json:"selected_parties,omitempty"`
 	}
 	var a alias
 	if err := json.Unmarshal(data, &a); err != nil {
@@ -689,7 +729,9 @@ func (g *globalDraftPatchInput) UnmarshalJSON(data []byte) error {
 	}
 	g.Name = a.Name
 	g.Variables = a.Variables
+	g.Language = a.Language
 	g.ProjectID = a.ProjectID
+	g.SelectedParties = a.SelectedParties
 	// Detect whether "project_id" was present in the JSON object.
 	var raw map[string]json.RawMessage
 	if err := json.Unmarshal(data, &raw); err != nil {
@@ -726,7 +768,12 @@ func handleGlobalPatchSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	patch := services.DraftPatch{Name: in.Name, Variables: in.Variables}
+	patch := services.DraftPatch{
+		Name:            in.Name,
+		Variables:       in.Variables,
+		SelectedParties: in.SelectedParties,
+		Language:        in.Language,
+	}
 	if in.projectIDProvided {
 		pid := in.ProjectID // may be nil → detach
 		patch.ProjectID = &pid
@@ -748,6 +795,48 @@ func handleGlobalPatchSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, view)
 }
 
+// handleImportFromProject re-pulls every project-derived variable on
+// the draft and bumps last_imported_at (t-paliad-277). The service-
+// layer call strips overrides for project.* / parties.* / deadline.* /
+// procedural_event.* / rule.* prefixes; firm.* / today.* / user.*
+// overrides survive because those values aren't sourced from the
+// project record.
+//
+// Idempotent on repeat clicks. Returns the full editor view so the
+// frontend can refresh in one round-trip.
+func handleImportFromProject(w http.ResponseWriter, r *http.Request) {
+	if !requireDB(w) {
+		return
+	}
+	uid, ok := requireUser(w, r)
+	if !ok {
+		return
+	}
+	draftID, ok := parseUUIDPath(w, r, "draft_id", "draft id")
+	if !ok {
+		return
+	}
+	if dbSvc.submissionDraft == nil {
+		writeJSON(w, http.StatusServiceUnavailable, map[string]string{"error": "submission drafts not configured"})
+		return
+	}
+
+	d, err := dbSvc.submissionDraft.ImportFromProject(r.Context(), uid, draftID)
+	if err != nil {
+		writeSubmissionDraftServiceError(w, err)
+		return
+	}
+	user, _ := dbSvc.users.GetByID(r.Context(), uid)
+	lang := userLang(user)
+	view, err := buildSubmissionDraftView(r.Context(), d, lang)
+	if err != nil {
+		log.Printf("submission_drafts: build view after import (draft=%s): %v", draftID, err)
+		writeJSON(w, http.StatusInternalServerError, map[string]string{"error": "internal error"})
+		return
+	}
+	writeJSON(w, http.StatusOK, view)
+}
+
 // handleGlobalDeleteSubmissionDraft removes a draft by id.
 func handleGlobalDeleteSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 	if !requireDB(w) {
@@ -801,7 +890,7 @@ func handleGlobalExportSubmissionDraft(w http.ResponseWriter, r *http.Request) {
 		writeSubmissionDraftServiceError(w, err)
 		return
 	}
-	tplBytes, tplSHA, err := resolveSubmissionTemplate(ctx, d.SubmissionCode)
+	tplBytes, tplSHA, _, err := resolveSubmissionTemplate(ctx, d.SubmissionCode, d.Language)
 	if err != nil {
 		log.Printf("submission_drafts: export template fetch (draft=%s): %v", draftID, err)
 		writeJSON(w, http.StatusBadGateway, map[string]string{"error": "template upstream unreachable"})
@@ -859,9 +948,10 @@ func serveSubmissionDraftNotFound(w http.ResponseWriter) {
 // per-rule heading.
 func buildSubmissionDraftView(ctx context.Context, d *services.SubmissionDraft, lang string) (*submissionDraftView, error) {
 	view := &submissionDraftView{
-		Draft:       draftToJSON(d),
-		Lang:        lang,
-		HasTemplate: true,
+		Draft:            draftToJSON(d),
+		Lang:             lang,
+		HasTemplate:      true,
+		AvailableParties: []submissionDraftPartyJSON{},
 	}
 
 	merged, resolved, err := dbSvc.submissionDraft.BuildRenderBag(ctx, d)
@@ -873,20 +963,33 @@ func buildSubmissionDraftView(ctx context.Context, d *services.SubmissionDraft,
 	if resolved.Lang != "" {
 		view.Lang = resolved.Lang
 	}
+	if len(resolved.Parties) > 0 {
+		view.AvailableParties = make([]submissionDraftPartyJSON, 0, len(resolved.Parties))
+		for _, p := range resolved.Parties {
+			row := submissionDraftPartyJSON{ID: p.ID, Name: p.Name}
+			if p.Role != nil {
+				row.Role = *p.Role
+			}
+			if p.Representative != nil {
+				row.Representative = *p.Representative
+			}
+			view.AvailableParties = append(view.AvailableParties, row)
+		}
+	}
 	if resolved.Rule != nil {
 		view.Rule = &submissionRuleSummary{
-			Name:                derefStringHandler(resolved.Rule.SubmissionCode),
-			SubmissionCode:      derefStringHandler(resolved.Rule.SubmissionCode),
-			NameEN:              resolved.Rule.NameEN,
-			PrimaryParty:        derefStringHandler(resolved.Rule.PrimaryParty),
-			EventType:           derefStringHandler(resolved.Rule.EventType),
-			LegalSource:         derefStringHandler(resolved.Rule.LegalSource),
+			Name:           derefStringHandler(resolved.Rule.SubmissionCode),
+			SubmissionCode: derefStringHandler(resolved.Rule.SubmissionCode),
+			NameEN:         resolved.Rule.NameEN,
+			PrimaryParty:   derefStringHandler(resolved.Rule.PrimaryParty),
+			EventType:      derefStringHandler(resolved.Rule.EventType),
+			LegalSource:    derefStringHandler(resolved.Rule.LegalSource),
 		}
 		view.Rule.Name = resolved.Rule.Name
 		view.Rule.LegalSourcePretty = merged["rule.legal_source_pretty"]
 	}
 
-	tplBytes, _, err := resolveSubmissionTemplate(ctx, d.SubmissionCode)
+	tplBytes, _, tier, err := resolveSubmissionTemplate(ctx, d.SubmissionCode, d.Language)
 	if err != nil {
 		log.Printf("submission_drafts: template fetch for view (draft=%s): %v", d.ID, err)
 		view.TemplateMissing = true
@@ -894,6 +997,12 @@ func buildSubmissionDraftView(ctx context.Context, d *services.SubmissionDraft,
 		view.PreviewHTML = `<p class="preview-error">Vorlage konnte nicht geladen werden.</p>`
 		return view, nil
 	}
+	view.TemplateTier = string(tier)
+	// LanguageFallback signals "no per-firm template in the requested
+	// language" — the editor surfaces a notice so the lawyer knows the
+	// rendered body lacks code-specific prose. The per-code DE template
+	// counts as a fallback when the requested language is EN.
+	view.LanguageFallback = languageFallback(d.Language, tier)
 	html, err := dbSvc.submissionDraft.RenderPreview(ctx, d, tplBytes)
 	if err != nil {
 		return nil, err
@@ -902,41 +1011,101 @@ func buildSubmissionDraftView(ctx context.Context, d *services.SubmissionDraft,
 	return view, nil
 }
 
+// submissionTemplateTier enumerates which tier of the template
+// fallback chain produced the bytes returned by resolveSubmissionTemplate.
+// Used by the editor to surface "Fallback: universelles Skelett" when
+// the requested (code, lang) didn't have a dedicated template.
+type submissionTemplateTier string
+
+const (
+	tplTierPerCodeLang  submissionTemplateTier = "per_code_lang"  // {firm}/{code}.{lang}.docx
+	tplTierPerCode      submissionTemplateTier = "per_code"       // {firm}/{code}.docx (unsuffixed)
+	tplTierSkeletonLang submissionTemplateTier = "skeleton_lang"  // _skeleton.{lang}.docx
+	tplTierSkeleton     submissionTemplateTier = "skeleton"       // _skeleton.docx
+	tplTierLetterhead   submissionTemplateTier = "letterhead"     // HL Patents Style .dotm
+)
+
 // resolveSubmissionTemplate returns the .docx bytes for the given
-// submission code. Lookup order matches the cronus design fallback chain
-// §8 plus the t-paliad-259 universal-skeleton slot:
+// (submission_code, language). Merges t-paliad-275 (firm-skeleton tier)
+// and t-paliad-276 (language-selector + EN skeleton tier). Lookup order:
 //
-//  1. per-firm per-submission_code template registered in
-//     submissionTemplateRegistry (e.g. de.inf.lg.erwidg.docx) — code-
-//     specific structure plus the full variable bag.
-//  2. universal _skeleton.docx — same variable bag, no submission_code-
-//     specific prose. Catches every code without a dedicated template
-//     so the editor preview / generate flow still has variables to
-//     substitute instead of falling through to the bare letterhead.
-//  3. universal HL Patents Style .dotm — macro-only letterhead, no
-//     placeholders. Final fallback when even the skeleton is unreachable
-//     (mWorkRepo outage etc.). Preserves the pre-t-paliad-259 behaviour
-//     for resilience.
+//  1. per-firm per-(code, lang) template — most specific. e.g.
+//     `de.inf.lg.erwidg.en.docx` for EN drafts. t-paliad-276.
+//  2. per-firm per-code (unsuffixed) template — DE-baked baseline. The
+//     legacy registry shape from before the language selector landed.
+//  3. universal language-matched skeleton — `_skeleton.en.docx` for EN
+//     drafts. Skipped for DE drafts (steps 4+5 already cover DE).
+//  4. firm-formatted skeleton — `_firm-skeleton.docx` (t-paliad-275).
+//     HL paragraph + character styles + letterhead, full placeholder
+//     bag. DE-flavored: counts as language_fallback=true for EN drafts.
+//  5. universal _skeleton.docx — plain DE skeleton, no firm styles.
+//     Backstop when the firm skeleton is unreachable.
+//  6. universal HL Patents Style .dotm — macro-only letterhead, no
+//     placeholders. Last-ditch when every skeleton tier is unreachable.
 //
-// The returned SHA is the cache entry's commit SHA so the export audit
-// row can record provenance.
-func resolveSubmissionTemplate(ctx context.Context, submissionCode string) ([]byte, string, error) {
-	if data, sha, found, err := fetchSubmissionTemplateBytes(ctx, submissionCode); err != nil {
-		return nil, "", err
+// The returned SHA pins the audit row's template provenance. The tier
+// tells the editor whether the result language-matches the request so
+// it can surface a "Fallback: universelles Skelett" notice.
+func resolveSubmissionTemplate(ctx context.Context, submissionCode, lang string) ([]byte, string, submissionTemplateTier, error) {
+	if lang != "de" && lang != "en" {
+		lang = "de"
+	}
+	// 1. per-(code, lang)
+	if data, sha, found, err := fetchSubmissionTemplateBytesForLang(ctx, submissionCode, lang); err != nil {
+		return nil, "", "", err
 	} else if found {
-		return data, sha, nil
+		return data, sha, tplTierPerCodeLang, nil
 	}
-	if data, sha, err := fetchSubmissionSkeletonBytes(ctx); err == nil {
-		return data, sha, nil
+	// 2. per-code (unsuffixed)
+	if data, sha, found, err := fetchSubmissionTemplateBytes(ctx, submissionCode); err != nil {
+		return nil, "", "", err
+	} else if found {
+		return data, sha, tplTierPerCode, nil
+	}
+	// 3. language-matched skeleton — only meaningful for EN drafts; DE
+	//    drafts fall through to the firm/universal DE skeletons below.
+	if lang == "en" {
+		if data, sha, langMatched, err := fetchSubmissionSkeletonBytesForLang(ctx, lang); err == nil && langMatched {
+			return data, sha, tplTierSkeletonLang, nil
+		}
+	}
+	// 4. firm-formatted skeleton (HL styles, DE prose). For DE drafts
+	//    this is a first-class match; for EN drafts it counts as a
+	//    language fallback (handled by languageFallback()).
+	if data, sha, err := fetchFirmSkeletonBytes(ctx); err == nil {
+		return data, sha, tplTierSkeleton, nil
 	} else {
-		log.Printf("submission_drafts: skeleton fetch failed for code=%s, falling back to HL Patents Style: %v", submissionCode, err)
+		log.Printf("submission_drafts: firm-skeleton fetch failed for code=%s lang=%s, falling back to universal skeleton: %v", submissionCode, lang, err)
 	}
+	// 5. universal plain DE skeleton.
+	if data, sha, err := fetchSubmissionSkeletonBytes(ctx); err == nil {
+		return data, sha, tplTierSkeleton, nil
+	} else {
+		log.Printf("submission_drafts: skeleton fetch failed for code=%s lang=%s, falling back to HL Patents Style: %v", submissionCode, lang, err)
+	}
+	// 6. HL Patents Style letterhead (no placeholders, last-ditch).
 	bytes, err := fetchHLPatentsStyleBytes(ctx)
 	if err != nil {
-		return nil, "", err
+		return nil, "", "", err
 	}
 	sha := hlPatentsStyleSHA()
-	return bytes, sha, nil
+	return bytes, sha, tplTierLetterhead, nil
+}
+
+// languageFallback reports whether the resolved template tier failed
+// to match the requested draft language. For an EN draft, anything
+// other than per_code_lang or skeleton_lang is a fallback (per_code is
+// the legacy DE-baked template, skeleton is the DE skeleton). For a DE
+// draft, only `letterhead` counts as a fallback — the DE skeleton and
+// per-code template are both first-class DE outputs. t-paliad-276.
+func languageFallback(lang string, tier submissionTemplateTier) bool {
+	if tier == tplTierLetterhead {
+		return true
+	}
+	if strings.EqualFold(lang, "en") {
+		return tier != tplTierPerCodeLang && tier != tplTierSkeletonLang
+	}
+	return false
 }
 
 // hlPatentsStyleSHA reads the current cache SHA for the universal
@@ -958,15 +1127,26 @@ func draftToJSON(d *services.SubmissionDraft) submissionDraftJSON {
 	if vars == nil {
 		vars = services.PlaceholderMap{}
 	}
+	selected := d.SelectedParties
+	if selected == nil {
+		selected = []uuid.UUID{}
+	}
+	lang := d.Language
+	if lang == "" {
+		lang = "de"
+	}
 	return submissionDraftJSON{
 		ID:              d.ID,
 		ProjectID:       d.ProjectID,
 		SubmissionCode:  d.SubmissionCode,
 		UserID:          d.UserID,
 		Name:            d.Name,
+		Language:        lang,
 		Variables:       vars,
+		SelectedParties: selected,
 		LastExportedAt:  d.LastExportedAt,
 		LastExportedSHA: d.LastExportedSHA,
+		LastImportedAt:  d.LastImportedAt,
 		CreatedAt:       d.CreatedAt,
 		UpdatedAt:       d.UpdatedAt,
 	}

internal/handlers/submission_template_lang_test.go

@@ -0,0 +1,43 @@
+package handlers
+
+// Regression tests for the template-tier → language-fallback mapping
+// (t-paliad-276). The editor surfaces a "Fallback: universelles
+// Skelett" notice when the requested draft language has no per-firm
+// language-matched template — these tests pin which tier counts as a
+// fallback for each language so the UI signal stays stable.
+
+import "testing"
+
+func TestLanguageFallback(t *testing.T) {
+	t.Parallel()
+	cases := []struct {
+		name string
+		lang string
+		tier submissionTemplateTier
+		want bool
+	}{
+		// DE drafts: every non-letterhead tier is a first-class match.
+		{"de_per_code_lang", "de", tplTierPerCodeLang, false},
+		{"de_per_code", "de", tplTierPerCode, false},
+		{"de_skeleton_lang", "de", tplTierSkeletonLang, false},
+		{"de_skeleton", "de", tplTierSkeleton, false},
+		{"de_letterhead", "de", tplTierLetterhead, true},
+
+		// EN drafts: per_code (DE-baked) and skeleton (DE-baked) both
+		// surface the fallback notice so the lawyer knows the rendered
+		// body lacks EN prose.
+		{"en_per_code_lang", "en", tplTierPerCodeLang, false},
+		{"en_per_code", "en", tplTierPerCode, true},
+		{"en_skeleton_lang", "en", tplTierSkeletonLang, false},
+		{"en_skeleton", "en", tplTierSkeleton, true},
+		{"en_letterhead", "en", tplTierLetterhead, true},
+	}
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			t.Parallel()
+			if got := languageFallback(c.lang, c.tier); got != c.want {
+				t.Errorf("languageFallback(%q, %q) = %v, want %v", c.lang, c.tier, got, c.want)
+			}
+		})
+	}
+}

internal/handlers/submissions.go

@@ -304,14 +304,23 @@ func handleGenerateProjectSubmission(w http.ResponseWriter, r *http.Request) {
 	ctx, cancel := context.WithTimeout(r.Context(), submissionRenderTimeout)
 	defer cancel()
 
-	tplBytes, _, err := resolveSubmissionTemplate(ctx, submissionCode)
+	// One-shot /generate has no draft row to pull `language` from —
+	// accept `?language=de|en` as an explicit override (t-paliad-276)
+	// and otherwise fall back to the user's UI language.
+	user, _ := dbSvc.users.GetByID(ctx, uid)
+	lang := strings.ToLower(strings.TrimSpace(r.URL.Query().Get("language")))
+	if lang != "de" && lang != "en" {
+		lang = userLang(user)
+	}
+
+	tplBytes, _, _, err := resolveSubmissionTemplate(ctx, submissionCode, lang)
 	if err != nil {
 		log.Printf("submissions: template fetch (project=%s code=%s): %v", projectID, submissionCode, err)
 		writeJSON(w, http.StatusBadGateway, map[string]string{"error": "template upstream unreachable"})
 		return
 	}
 
-	docx, resolved, err := dbSvc.submissionDraft.RenderProjectSubmission(ctx, uid, projectID, submissionCode, tplBytes)
+	docx, resolved, err := dbSvc.submissionDraft.RenderProjectSubmission(ctx, uid, projectID, submissionCode, lang, tplBytes)
 	if err != nil {
 		if errors.Is(err, services.ErrSubmissionRuleNotFound) {
 			writeJSON(w, http.StatusNotFound, map[string]string{

internal/models/models.go

@@ -4,63 +4,20 @@
 package models
 
 import (
-	"database/sql/driver"
 	"encoding/json"
-	"fmt"
 	"time"
 
 	"github.com/google/uuid"
 	"github.com/lib/pq"
+
+	"mgit.msbls.de/m/paliad/pkg/litigationplanner"
 )
 
-// NullableJSON is a jsonb column that may be NULL. json.RawMessage
-// (and *json.RawMessage) doesn't implement sql.Scanner, so a NULL value
-// from Postgres breaks the row scan with "unsupported Scan, storing
-// driver.Value type <nil> into type *json.RawMessage" — exactly the
-// error that hid every approval_request from the inbox when m's first
-// "create" lifecycle row arrived with NULL pre_image (m's dogfood
-// 2026-05-08 20:35). Using NullableJSON on every nullable jsonb column
-// fixes the scan and preserves inline JSON output (no base64 cast).
-type NullableJSON []byte
-
-func (n *NullableJSON) Scan(value any) error {
-	if value == nil {
-		*n = nil
-		return nil
-	}
-	switch v := value.(type) {
-	case []byte:
-		*n = append((*n)[:0], v...)
-		return nil
-	case string:
-		*n = []byte(v)
-		return nil
-	}
-	return fmt.Errorf("NullableJSON: unsupported scan type %T", value)
-}
-
-func (n NullableJSON) Value() (driver.Value, error) {
-	if len(n) == 0 {
-		return nil, nil
-	}
-	return []byte(n), nil
-}
-
-func (n NullableJSON) MarshalJSON() ([]byte, error) {
-	if len(n) == 0 {
-		return []byte("null"), nil
-	}
-	return []byte(n), nil
-}
-
-func (n *NullableJSON) UnmarshalJSON(data []byte) error {
-	if string(data) == "null" {
-		*n = nil
-		return nil
-	}
-	*n = append((*n)[:0], data...)
-	return nil
-}
+// NullableJSON is a jsonb column that may be NULL. Canonical definition
+// (with sql.Scanner / driver.Valuer / json.Marshaler / json.Unmarshaler)
+// lives in pkg/litigationplanner — kept here as a type alias so every
+// existing models.NullableJSON reference continues to compile.
+type NullableJSON = litigationplanner.NullableJSON
 
 // User extends auth.users with firm-specific profile fields. Created by the
 // Phase D onboarding flow; without a row here, the user can't see any Projects.
@@ -584,105 +541,10 @@ type Party struct {
 }
 
 // DeadlineRule is one rule in the proceeding-rule tree (UPC R.023, etc.).
-type DeadlineRule struct {
-	ID               uuid.UUID  `db:"id"                 json:"id"`
-	ProceedingTypeID *int       `db:"proceeding_type_id" json:"proceeding_type_id,omitempty"`
-	ParentID         *uuid.UUID `db:"parent_id"          json:"parent_id,omitempty"`
-	SubmissionCode   *string    `db:"submission_code"    json:"submission_code,omitempty"`
-	Name             string     `db:"name"               json:"name"`
-	NameEN           string     `db:"name_en"            json:"name_en"`
-	Description      *string    `db:"description"        json:"description,omitempty"`
-	PrimaryParty     *string    `db:"primary_party"      json:"primary_party,omitempty"`
-	EventType        *string    `db:"event_type"         json:"event_type,omitempty"`
-	DurationValue    int        `db:"duration_value"     json:"duration_value"`
-	DurationUnit     string     `db:"duration_unit"      json:"duration_unit"`
-	Timing           *string    `db:"timing"             json:"timing,omitempty"`
-	RuleCode         *string    `db:"rule_code"          json:"rule_code,omitempty"`
-	DeadlineNotes    *string    `db:"deadline_notes"     json:"deadline_notes,omitempty"`
-	DeadlineNotesEn  *string    `db:"deadline_notes_en"  json:"deadline_notes_en,omitempty"`
-	SequenceOrder    int        `db:"sequence_order"     json:"sequence_order"`
-	AltDurationValue *int       `db:"alt_duration_value" json:"alt_duration_value,omitempty"`
-	AltDurationUnit  *string    `db:"alt_duration_unit"  json:"alt_duration_unit,omitempty"`
-	AltRuleCode      *string    `db:"alt_rule_code"      json:"alt_rule_code,omitempty"`
-	AnchorAlt        *string    `db:"anchor_alt"         json:"anchor_alt,omitempty"`
-	ConceptID        *uuid.UUID `db:"concept_id"         json:"concept_id,omitempty"`
-	// ConceptDefaultEventTypeID is the canonical paliad.event_types row for
-	// this rule's concept (joined via paliad.deadline_concept_event_types
-	// where is_default = true). Lets the deadline create form auto-populate
-	// the Typ chip when the user picks this rule. Hydrated by the service
-	// layer; not a column. NULL when the concept has no mapped event_type.
-	ConceptDefaultEventTypeID *uuid.UUID `db:"-" json:"concept_default_event_type_id,omitempty"`
-	LegalSource      *string    `db:"legal_source"       json:"legal_source,omitempty"`
-	IsSpawn          bool       `db:"is_spawn"           json:"is_spawn"`
-	SpawnLabel       *string    `db:"spawn_label"        json:"spawn_label,omitempty"`
-	IsActive         bool       `db:"is_active"          json:"is_active"`
-	CreatedAt        time.Time  `db:"created_at"         json:"created_at"`
-	UpdatedAt        time.Time  `db:"updated_at"         json:"updated_at"`
-
-	// ---------------------------------------------------------------
-	// Phase 3 unified-rule columns (mig 078, t-paliad-182).
-	// Slice 9 (t-paliad-195) dropped the legacy IsMandatory /
-	// IsOptional / ConditionFlag / ConditionRuleID fields — they
-	// were superseded by Priority / ConditionExpr / IsCourtSet and
-	// the unified calculator no longer reads them.
-	// ---------------------------------------------------------------
-
-	// TriggerEventID points at paliad.trigger_events when this rule is
-	// event-rooted (Pipeline C unification, design §2.5). NULL on
-	// proceeding-rooted rules. Exactly one of (proceeding_type_id,
-	// trigger_event_id) is set after Slice 3.
-	TriggerEventID *int64 `db:"trigger_event_id" json:"trigger_event_id,omitempty"`
-
-	// SpawnProceedingTypeID is the cross-proceeding spawn target —
-	// when is_spawn=true and this is non-NULL, the calculator follows
-	// the FK and emits the target proceeding's root rule chain. Slice
-	// 7 backfills the 8 live is_spawn=true rows.
-	SpawnProceedingTypeID *int `db:"spawn_proceeding_type_id" json:"spawn_proceeding_type_id,omitempty"`
-
-	// CombineOp is 'max' or 'min' for composite-rule arithmetic
-	// (R.198 / R.213: "31d OR 20 working_days, whichever is longer").
-	// NULL = single-anchor arithmetic.
-	CombineOp *string `db:"combine_op" json:"combine_op,omitempty"`
-
-	// ConditionExpr is the jsonb gating expression replacing
-	// ConditionFlag (design §2.4). Grammar:
-	//   {"flag": "<name>"}
-	//   {"op":"and"|"or", "args":[<node>, ...]}
-	//   {"op":"not", "args":[<node>]}
-	// NULL or {} = unconditional. NullableJSON so a NULL column scans
-	// cleanly (the row mishap that hid approval rows from the inbox
-	// must not recur on rule rows).
-	ConditionExpr NullableJSON `db:"condition_expr" json:"condition_expr,omitempty"`
-
-	// Priority is the 4-way unified enum replacing
-	// (IsMandatory, IsOptional). Values: 'mandatory' (default),
-	// 'recommended', 'optional', 'informational'. Backfilled in
-	// Slice 2; legacy callers read IsMandatory + IsOptional until
-	// Slice 4 cuts them over.
-	Priority string `db:"priority" json:"priority"`
-
-	// IsCourtSet replaces the runtime heuristic
-	// (primary_party='court' OR event_type IN ('hearing','decision',
-	// 'order')). Backfilled in Slice 2; legacy callers read the
-	// heuristic until Slice 4.
-	IsCourtSet bool `db:"is_court_set" json:"is_court_set"`
-
-	// LifecycleState drives the rule-editor flow (design §4.2):
-	// 'draft' (admin work-in-progress) | 'published' (live, calculator-
-	// visible) | 'archived' (historical, retained for audit). Every
-	// pre-Slice-1 row defaults to 'published' via the migration.
-	LifecycleState string `db:"lifecycle_state" json:"lifecycle_state"`
-
-	// DraftOf points at the published rule this draft will replace on
-	// publish. NULL on published / archived rows. NULL also on net-
-	// new drafts that have no prior published peer.
-	DraftOf *uuid.UUID `db:"draft_of" json:"draft_of,omitempty"`
-
-	// PublishedAt records when the row entered LifecycleState='published'.
-	// NULL while draft, set on publish, retained through archive.
-	// Distinct from UpdatedAt (moves on every edit).
-	PublishedAt *time.Time `db:"published_at" json:"published_at,omitempty"`
-}
+// Canonical definition lives in pkg/litigationplanner.Rule — kept here
+// as a type alias so every existing models.DeadlineRule reference (sqlx
+// scans, hydration, projection service) continues to compile.
+type DeadlineRule = litigationplanner.Rule
 
 // DeadlineRuleAudit is one row of paliad.deadline_rule_audit — the
 // append-only audit log for every change to paliad.deadline_rules.
@@ -714,43 +576,19 @@ type DeadlineRuleAudit struct {
 	MigrationExported bool `db:"migration_exported" json:"migration_exported"`
 }
 
-// ProceedingType is one of INF/REV/CCR/APM/APP/AMD/ZPO_CIVIL (matter
-// management) or the lowercase dot-separated fristenrechner codes
-// (upc.*.*, de.*.*, epa.*.*, dpma.*.*) — see
-// docs/design-proceeding-code-taxonomy-2026-05-18.md.
-type ProceedingType struct {
-	ID           int     `db:"id"             json:"id"`
-	Code         string  `db:"code"           json:"code"`
-	Name         string  `db:"name"           json:"name"`
-	NameEN       string  `db:"name_en"        json:"name_en"`
-	Description  *string `db:"description"    json:"description,omitempty"`
-	Jurisdiction *string `db:"jurisdiction"   json:"jurisdiction,omitempty"`
-	Category     *string `db:"category"       json:"category,omitempty"`
-	DefaultColor string  `db:"default_color"  json:"default_color"`
-	SortOrder    int     `db:"sort_order"     json:"sort_order"`
-	IsActive     bool    `db:"is_active"      json:"is_active"`
-	// TriggerEventLabel{DE,EN}: optional caption for /tools/verfahrensablauf
-	// "Auslösendes Ereignis". When set, overrides the proceedingName fallback
-	// that fires when no rule has IsRootEvent=true. Populated for UPC Appeal
-	// (mig 121) so the caption reads "Anfechtbare Entscheidung" /
-	// "Appealable Decision" instead of "Berufungsverfahren" / "Appeal".
-	// NULL on most proceedings — they already carry a root rule.
-	TriggerEventLabelDE *string `db:"trigger_event_label_de" json:"trigger_event_label_de,omitempty"`
-	TriggerEventLabelEN *string `db:"trigger_event_label_en" json:"trigger_event_label_en,omitempty"`
-}
+// ProceedingType is one of the litigation conceptual codes (INF / REV /
+// CCR / APM / APP / AMD / ZPO_CIVIL) or the lowercase dot-separated
+// fristenrechner codes (upc.*.*, de.*.*, epa.*.*, dpma.*.*) — see
+// docs/design-proceeding-code-taxonomy-2026-05-18.md. Canonical
+// definition lives in pkg/litigationplanner.ProceedingType — kept here
+// as a type alias so every existing models.ProceedingType reference
+// continues to compile.
+type ProceedingType = litigationplanner.ProceedingType
 
-// TriggerEvent is a UPC procedural event that can start one or more deadlines
-// running. Powers the "Was kommt nach…" Fristenrechner mode (event-driven
-// lookup, mirrored from youpc data.events).
-type TriggerEvent struct {
-	ID          int64     `db:"id"          json:"id"`
-	Code        string    `db:"code"        json:"code"`
-	Name        string    `db:"name"        json:"name"`
-	NameDE      string    `db:"name_de"     json:"name_de"`
-	Description string    `db:"description" json:"description"`
-	IsActive    bool      `db:"is_active"   json:"is_active"`
-	CreatedAt   time.Time `db:"created_at"  json:"created_at"`
-}
+// TriggerEvent is a UPC procedural event referenced by deadline rules
+// whose semantic anchor is an event rather than a parent rule.
+// Canonical definition lives in pkg/litigationplanner.TriggerEvent.
+type TriggerEvent = litigationplanner.TriggerEvent
 
 // EventDeadline is a single deadline that flows from a TriggerEvent. Mirrors
 // youpc data.deadlines + the trigger half of data.deadline_events.
@@ -946,3 +784,24 @@ type ApprovalRequest struct {
 	CreatedAt         time.Time  `db:"created_at"          json:"created_at"`
 	UpdatedAt         time.Time  `db:"updated_at"          json:"updated_at"`
 }
+
+// ProjectEventChoice is one per-event-card pick scoped to a project
+// (t-paliad-265 / m/paliad#96). The join key SubmissionCode matches
+// paliad.deadline_rules.submission_code — the same identifier the
+// AnchorOverrides plumbing in fristenrechner.go already uses.
+//
+// ChoiceKind ∈ {appellant, include_ccr, skip}. ChoiceValue namespace
+// per kind: appellant=claimant|defendant|both|none; include_ccr=true|false;
+// skip=true|false. UNIQUE(project_id, submission_code, choice_kind)
+// makes re-picks idempotent (Upsert path).
+type ProjectEventChoice struct {
+	ID             uuid.UUID  `db:"id"              json:"id"`
+	ProjectID      uuid.UUID  `db:"project_id"      json:"project_id"`
+	SubmissionCode string     `db:"submission_code" json:"submission_code"`
+	ChoiceKind     string     `db:"choice_kind"     json:"choice_kind"`
+	ChoiceValue    string     `db:"choice_value"    json:"choice_value"`
+	CreatedBy      *uuid.UUID `db:"created_by"      json:"created_by,omitempty"`
+	CreatedAt      time.Time  `db:"created_at"      json:"created_at"`
+	UpdatedBy      *uuid.UUID `db:"updated_by"      json:"updated_by,omitempty"`
+	UpdatedAt      time.Time  `db:"updated_at"      json:"updated_at"`
+}

internal/services/deadline_rule_service.go

@@ -34,10 +34,15 @@ const ruleColumns = `id, proceeding_type_id, parent_id, submission_code, name, n
 	anchor_alt, concept_id, legal_source, is_spawn, spawn_label, is_active,
 	created_at, updated_at,
 	trigger_event_id, spawn_proceeding_type_id, combine_op, condition_expr,
-	priority, is_court_set, lifecycle_state, draft_of, published_at`
+	priority, is_court_set, lifecycle_state, draft_of, published_at,
+	choices_offered, applies_to_target`
 
 const proceedingTypeColumns = `id, code, name, name_en, description, jurisdiction,
-	category, default_color, sort_order, is_active`
+	category, default_color, sort_order, is_active,
+	trigger_event_label_de, trigger_event_label_en,
+	appeal_target,
+	role_proactive_label_de, role_proactive_label_en,
+	role_reactive_label_de,  role_reactive_label_en`
 
 // List returns active rules, optionally filtered by proceeding type.
 // Each row has ConceptDefaultEventTypeID hydrated from
@@ -206,6 +211,44 @@ func (s *DeadlineRuleService) GetByIDs(ctx context.Context, ids []uuid.UUID) ([]
 	return rules, nil
 }
 
+// LoadTriggerEventsByIDs bulk-loads paliad.trigger_events rows for the
+// given id set, keyed by id. Returns nil, nil for an empty input set so
+// callers can blindly forward whatever they accumulated. Inactive rows
+// are included — the conditional-label resolution in fristenrechner.go
+// surfaces the trigger event's display name even when the catalog row
+// has been retired, which is preferable to silently falling back to
+// the (wrong) parent_id name.
+//
+// Used by FristenrechnerService.Calculate to redirect a conditional
+// rule's "abhängig von …" chip from parent_id to trigger_event_id —
+// the actual semantic anchor for rules whose data-model parent is the
+// proceeding root but whose real trigger sits in the trigger_events
+// catalog (e.g. R.262(2) Erwiderung auf Vertraulichkeitsantrag → the
+// opposing party's confidentiality application). See m/paliad#126.
+func (s *DeadlineRuleService) LoadTriggerEventsByIDs(ctx context.Context, ids []int64) (map[int64]models.TriggerEvent, error) {
+	if len(ids) == 0 {
+		return nil, nil
+	}
+	query, args, err := sqlx.In(
+		`SELECT id, code, name, name_de, description, is_active, created_at
+		   FROM paliad.trigger_events
+		  WHERE id IN (?)`, ids)
+	if err != nil {
+		return nil, fmt.Errorf("build trigger_events IN query: %w", err)
+	}
+	query = s.db.Rebind(query)
+
+	var rows []models.TriggerEvent
+	if err := s.db.SelectContext(ctx, &rows, query, args...); err != nil {
+		return nil, fmt.Errorf("load trigger_events by ids %v: %w", ids, err)
+	}
+	out := make(map[int64]models.TriggerEvent, len(rows))
+	for _, r := range rows {
+		out[r.ID] = r
+	}
+	return out, nil
+}
+
 // ListByTriggerEvent returns active rules scoped to a single trigger
 // event — the Pipeline-C surface added by Phase 3 Slice 3 (mig 085).
 // These rules carry proceeding_type_id IS NULL (event-rooted) and have

internal/services/deadline_search_service.go

@@ -9,6 +9,8 @@ import (
 
 	"github.com/jmoiron/sqlx"
 	"github.com/lib/pq"
+
+	lp "mgit.msbls.de/m/paliad/pkg/litigationplanner"
 )
 
 // DeadlineSearchService backs the unified Fristenrechner search bar
@@ -921,130 +923,15 @@ func roundScore(v float64) float64 {
 	return float64(int(v*10000+0.5)) / 10000
 }
 
-// FormatLegalSourceDisplay renders a structured legal_source code into
-// the form HLC users read in pleadings:
-//
-//	UPC.RoP.23.1   → "UPC RoP R.23(1)"
-//	UPC.RoP.139    → "UPC RoP R.139"
-//	DE.PatG.82.1   → "PatG §82(1)"
-//	DE.ZPO.276.1   → "ZPO §276(1)"
-//	EU.EPÜ.108     → "EPÜ Art.108"
-//	EU.EPC-R.79.1  → "EPC R.79(1)"
-//	EU.RPBA.12.1.c → "RPBA Art.12(1)(c)"
-//
-// Returns the empty string for an empty input. Unknown jurisdictions
-// fall through with the structured form preserved (caller decides
-// whether to display).
+// FormatLegalSourceDisplay + BuildLegalSourceURL are canonically
+// defined in pkg/litigationplanner — kept here as thin re-exports so
+// the existing in-package + handler call-sites compile unchanged.
 func FormatLegalSourceDisplay(src string) string {
-	src = strings.TrimSpace(src)
-	if src == "" {
-		return ""
-	}
-	parts := strings.Split(src, ".")
-	if len(parts) < 3 {
-		// Malformed — return as-is so the caller still has something.
-		return src
-	}
-	code := parts[1]
-	rest := parts[2:]
-	var prefix string
-	switch code {
-	case "RoP":
-		prefix = "UPC RoP R."
-	case "PatG":
-		prefix = "PatG §"
-	case "ZPO":
-		prefix = "ZPO §"
-	case "EPÜ":
-		prefix = "EPÜ Art."
-	case "EPC-R":
-		prefix = "EPC R."
-	case "RPBA":
-		prefix = "RPBA Art."
-	default:
-		prefix = code + " "
-	}
-	var b strings.Builder
-	b.Grow(len(prefix) + len(src))
-	b.WriteString(prefix)
-	b.WriteString(rest[0])
-	for _, p := range rest[1:] {
-		b.WriteByte('(')
-		b.WriteString(p)
-		b.WriteByte(')')
-	}
-	return b.String()
+	return lp.FormatLegalSourceDisplay(src)
 }
 
-// BuildLegalSourceURL maps a structured legal_source code to a
-// youpc.org/laws permalink when the cited body is hosted there. Today
-// youpc only carries the UPC corpus (UPCA, UPCS, UPCRoP); DE national
-// codes (PatG, ZPO) and EPO bodies (EPÜ, EPC-R, RPBA) have no youpc
-// home yet, so the helper returns the empty string for those and the
-// caller renders the display string as plain text.
-//
-// Inputs mirror FormatLegalSourceDisplay — structured dot-separated
-// codes like UPC.RoP.23.1, UPC.UPCA.83. Sub-paragraph segments beyond
-// the law-number position are dropped; youpc resolves the page at
-// <type>.<number> granularity. The law-number is zero-padded to 3
-// digits to match how youpc stores law_number (laws-data.json carries
-// "001" / "023" / "220" forms).
-//
-// URL shape uses the hash-fragment form that youpc itself emits from
-// its laws-page redirect (handlers/laws.go:215+229) — the canonical
-// in-app deep link target. The `/laws/:type/:number` pretty route also
-// resolves the same page but redirects to the hash form anyway.
-//
-//	UPC.RoP.23.1   → https://youpc.org/laws#UPCRoP.023
-//	UPC.RoP.139    → https://youpc.org/laws#UPCRoP.139
-//	UPC.RoP.220.1  → https://youpc.org/laws#UPCRoP.220
-//	UPC.RoP.29.a   → https://youpc.org/laws#UPCRoP.029
-//	UPC.UPCA.83    → https://youpc.org/laws#UPCA.083
-//	DE.ZPO.276.1   → ""   (no youpc home — render display text plain)
 func BuildLegalSourceURL(src string) string {
-	src = strings.TrimSpace(src)
-	if src == "" {
-		return ""
-	}
-	parts := strings.Split(src, ".")
-	if len(parts) < 3 {
-		return ""
-	}
-	var lawType string
-	switch parts[0] + "." + parts[1] {
-	case "UPC.RoP":
-		lawType = "UPCRoP"
-	case "UPC.UPCA":
-		lawType = "UPCA"
-	case "UPC.UPCS":
-		lawType = "UPCS"
-	default:
-		return ""
-	}
-	number := padLawNumber(parts[2])
-	if number == "" {
-		return ""
-	}
-	return "https://youpc.org/laws#" + lawType + "." + number
-}
-
-// padLawNumber zero-pads a pure-digit law-number segment to 3 digits.
-// Non-digit-only inputs (e.g. "112a" if youpc ever ingests EPÜ Art.
-// 112a) pass through unchanged so the URL still resolves. Empty input
-// returns the empty string.
-func padLawNumber(s string) string {
-	if s == "" {
-		return ""
-	}
-	for _, c := range s {
-		if c < '0' || c > '9' {
-			return s
-		}
-	}
-	if len(s) >= 3 {
-		return s
-	}
-	return strings.Repeat("0", 3-len(s)) + s
+	return lp.BuildLegalSourceURL(src)
 }
 
 // RefreshSearchView re-populates the materialised view. Safe to call on

internal/services/event_choice_service.go

@@ -0,0 +1,272 @@
+package services
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+
+	"github.com/google/uuid"
+	"github.com/jmoiron/sqlx"
+
+	"mgit.msbls.de/m/paliad/internal/models"
+)
+
+// EventChoiceService reads and writes paliad.project_event_choices —
+// per-event-card user picks scoped to a project (t-paliad-265 /
+// m/paliad#96). Three choice kinds today:
+//
+//	appellant   — claimant | defendant | both | none
+//	include_ccr — true | false
+//	skip        — true | false
+//
+// Visibility follows paliad.can_see_project (via ProjectService.CanSee).
+// Audits via paliad.system_audit_log with event_type=project_event_choice.set
+// (insert/update) or .deleted (delete).
+//
+// The CRUD surface is intentionally tight: List for a project (one read),
+// Upsert one (idempotent re-pick), Delete one (kind-scoped). The
+// projection engine receives the choices via ToCalcOptionsAddendum,
+// which folds them into CalcOptions before Calculate runs.
+type EventChoiceService struct {
+	db       *sqlx.DB
+	projects *ProjectService
+	users    *UserService
+}
+
+func NewEventChoiceService(db *sqlx.DB, projects *ProjectService, users *UserService) *EventChoiceService {
+	return &EventChoiceService{db: db, projects: projects, users: users}
+}
+
+// Allowed choice kinds + per-kind value namespaces. Validated server-side
+// before any write; the DB CHECK constraint catches the same shape but
+// the early validation gives a friendlier error and short-circuits the
+// transaction.
+var (
+	allowedChoiceKinds = map[string]map[string]struct{}{
+		"appellant":   {"claimant": {}, "defendant": {}, "both": {}, "none": {}},
+		"include_ccr": {"true": {}, "false": {}},
+		"skip":        {"true": {}, "false": {}},
+	}
+)
+
+func validateChoice(kind, value string) error {
+	values, ok := allowedChoiceKinds[kind]
+	if !ok {
+		return fmt.Errorf("%w: unknown choice_kind %q", ErrInvalidInput, kind)
+	}
+	if _, ok := values[value]; !ok {
+		return fmt.Errorf("%w: invalid choice_value %q for kind %q", ErrInvalidInput, value, kind)
+	}
+	return nil
+}
+
+// ListForProject returns every choice row for the given project. Caller
+// must hold visibility on the project.
+func (s *EventChoiceService) ListForProject(ctx context.Context, userID, projectID uuid.UUID) ([]models.ProjectEventChoice, error) {
+	if err := s.requireProjectVisible(ctx, userID, projectID); err != nil {
+		return nil, err
+	}
+	out := []models.ProjectEventChoice{}
+	err := s.db.SelectContext(ctx, &out,
+		`SELECT id, project_id, submission_code, choice_kind, choice_value,
+		        created_by, created_at, updated_by, updated_at
+		   FROM paliad.project_event_choices
+		  WHERE project_id = $1
+		  ORDER BY submission_code, choice_kind`, projectID)
+	if err != nil {
+		return nil, fmt.Errorf("list event choices: %w", err)
+	}
+	return out, nil
+}
+
+// UpsertInput is the body shape for an upsert.
+type UpsertEventChoiceInput struct {
+	SubmissionCode string `json:"submission_code"`
+	ChoiceKind     string `json:"choice_kind"`
+	ChoiceValue    string `json:"choice_value"`
+}
+
+// Upsert inserts or updates one (project, submission_code, choice_kind)
+// row. Audit-log row written in the same tx.
+func (s *EventChoiceService) Upsert(ctx context.Context, userID, projectID uuid.UUID, input UpsertEventChoiceInput) (*models.ProjectEventChoice, error) {
+	if err := s.requireProjectVisible(ctx, userID, projectID); err != nil {
+		return nil, err
+	}
+	if input.SubmissionCode == "" {
+		return nil, fmt.Errorf("%w: submission_code required", ErrInvalidInput)
+	}
+	if err := validateChoice(input.ChoiceKind, input.ChoiceValue); err != nil {
+		return nil, err
+	}
+
+	actorEmail, err := s.actorEmail(ctx, userID)
+	if err != nil {
+		return nil, err
+	}
+
+	tx, err := s.db.BeginTxx(ctx, nil)
+	if err != nil {
+		return nil, fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	if _, err := tx.ExecContext(ctx,
+		`SELECT set_config('paliad.audit_reason',
+		     'project_event_choice.set ('||$1||','||$2||','||$3||')', true)`,
+		input.SubmissionCode, input.ChoiceKind, input.ChoiceValue); err != nil {
+		return nil, fmt.Errorf("set audit reason: %w", err)
+	}
+
+	var row models.ProjectEventChoice
+	err = tx.GetContext(ctx, &row,
+		`INSERT INTO paliad.project_event_choices
+		     (project_id, submission_code, choice_kind, choice_value, created_by, updated_by)
+		 VALUES ($1, $2, $3, $4, $5, $5)
+		 ON CONFLICT (project_id, submission_code, choice_kind)
+		 DO UPDATE SET choice_value = EXCLUDED.choice_value,
+		               updated_by   = EXCLUDED.updated_by,
+		               updated_at   = now()
+		 RETURNING id, project_id, submission_code, choice_kind, choice_value,
+		           created_by, created_at, updated_by, updated_at`,
+		projectID, input.SubmissionCode, input.ChoiceKind, input.ChoiceValue, userID)
+	if err != nil {
+		return nil, fmt.Errorf("upsert event choice: %w", err)
+	}
+
+	if err := writeChoiceAudit(ctx, tx, "project_event_choice.set", userID, actorEmail, projectID, input.SubmissionCode, input.ChoiceKind, input.ChoiceValue); err != nil {
+		return nil, err
+	}
+
+	if err := tx.Commit(); err != nil {
+		return nil, fmt.Errorf("commit upsert: %w", err)
+	}
+	return &row, nil
+}
+
+// Delete removes the (project, submission_code, choice_kind) row.
+// Returns ErrNotVisible if the project isn't visible OR the row didn't
+// exist (no leak between the two).
+func (s *EventChoiceService) Delete(ctx context.Context, userID, projectID uuid.UUID, submissionCode, choiceKind string) error {
+	if err := s.requireProjectVisible(ctx, userID, projectID); err != nil {
+		return err
+	}
+	if submissionCode == "" || choiceKind == "" {
+		return fmt.Errorf("%w: submission_code + choice_kind required", ErrInvalidInput)
+	}
+	if _, ok := allowedChoiceKinds[choiceKind]; !ok {
+		return fmt.Errorf("%w: unknown choice_kind %q", ErrInvalidInput, choiceKind)
+	}
+
+	actorEmail, err := s.actorEmail(ctx, userID)
+	if err != nil {
+		return err
+	}
+
+	tx, err := s.db.BeginTxx(ctx, nil)
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	if _, err := tx.ExecContext(ctx,
+		`SELECT set_config('paliad.audit_reason',
+		     'project_event_choice.deleted ('||$1||','||$2||')', true)`,
+		submissionCode, choiceKind); err != nil {
+		return fmt.Errorf("set audit reason: %w", err)
+	}
+
+	res, err := tx.ExecContext(ctx,
+		`DELETE FROM paliad.project_event_choices
+		  WHERE project_id = $1 AND submission_code = $2 AND choice_kind = $3`,
+		projectID, submissionCode, choiceKind)
+	if err != nil {
+		return fmt.Errorf("delete event choice: %w", err)
+	}
+	n, _ := res.RowsAffected()
+	if n == 0 {
+		return ErrNotVisible
+	}
+	if err := writeChoiceAudit(ctx, tx, "project_event_choice.deleted", userID, actorEmail, projectID, submissionCode, choiceKind, ""); err != nil {
+		return err
+	}
+	return tx.Commit()
+}
+
+// CalcOptionsAddendum is the per-card slice of CalcOptions, built from
+// the persisted choices. ProjectionService folds these into the parent
+// CalcOptions before Calculate runs.
+type CalcOptionsAddendum struct {
+	PerCardAppellant map[string]string   // submission_code → appellant value
+	SkipRules        map[string]struct{} // set of submission_code
+	IncludeCCRFor    map[string]struct{} // set of submission_code
+}
+
+// ToCalcOptionsAddendum converts a list of choices into the calc-options
+// shape. Empty input yields an addendum whose maps are non-nil but empty
+// so callers can use map indexing without nil checks.
+func ToCalcOptionsAddendum(choices []models.ProjectEventChoice) CalcOptionsAddendum {
+	out := CalcOptionsAddendum{
+		PerCardAppellant: map[string]string{},
+		SkipRules:        map[string]struct{}{},
+		IncludeCCRFor:    map[string]struct{}{},
+	}
+	for _, c := range choices {
+		switch c.ChoiceKind {
+		case "appellant":
+			out.PerCardAppellant[c.SubmissionCode] = c.ChoiceValue
+		case "skip":
+			if c.ChoiceValue == "true" {
+				out.SkipRules[c.SubmissionCode] = struct{}{}
+			}
+		case "include_ccr":
+			if c.ChoiceValue == "true" {
+				out.IncludeCCRFor[c.SubmissionCode] = struct{}{}
+			}
+		}
+	}
+	return out
+}
+
+// writeChoiceAudit inserts a project-scoped row into paliad.system_audit_log
+// with the choice details in metadata. Same shape as the data-export +
+// checklist audit writers.
+func writeChoiceAudit(ctx context.Context, tx *sqlx.Tx, eventType string, actorID uuid.UUID, actorEmail string, projectID uuid.UUID, submissionCode, choiceKind, choiceValue string) error {
+	if _, err := tx.ExecContext(ctx,
+		`INSERT INTO paliad.system_audit_log
+		     (event_type, actor_id, actor_email, scope, scope_root, metadata)
+		 VALUES ($1, $2, $3, 'project', $4,
+		         jsonb_build_object(
+		             'submission_code', $5::text,
+		             'choice_kind',     $6::text,
+		             'choice_value',    $7::text
+		         ))`,
+		eventType, actorID, actorEmail, projectID, submissionCode, choiceKind, choiceValue); err != nil {
+		return fmt.Errorf("audit insert: %w", err)
+	}
+	return nil
+}
+
+func (s *EventChoiceService) actorEmail(ctx context.Context, userID uuid.UUID) (string, error) {
+	var email string
+	err := s.db.GetContext(ctx, &email,
+		`SELECT email FROM paliad.users WHERE id = $1`, userID)
+	if errors.Is(err, sql.ErrNoRows) {
+		return "", ErrNotVisible
+	}
+	if err != nil {
+		return "", fmt.Errorf("lookup actor: %w", err)
+	}
+	return email, nil
+}
+
+func (s *EventChoiceService) requireProjectVisible(ctx context.Context, userID, projectID uuid.UUID) error {
+	visible, err := s.projects.CanSee(ctx, userID, projectID)
+	if err != nil {
+		return err
+	}
+	if !visible {
+		return ErrNotVisible
+	}
+	return nil
+}

internal/services/event_choice_service_test.go

@@ -0,0 +1,108 @@
+package services
+
+import (
+	"testing"
+
+	"mgit.msbls.de/m/paliad/internal/models"
+)
+
+// Unit tests for the pure helpers in event_choice_service.go. The CRUD
+// path needs a live DB and lives in the integration suite.
+
+func TestValidateChoice_Appellant(t *testing.T) {
+	for _, value := range []string{"claimant", "defendant", "both", "none"} {
+		if err := validateChoice("appellant", value); err != nil {
+			t.Errorf("appellant=%q should pass, got %v", value, err)
+		}
+	}
+	for _, bad := range []string{"", "applicant", "true", "claimaant"} {
+		if err := validateChoice("appellant", bad); err == nil {
+			t.Errorf("appellant=%q should fail validation", bad)
+		}
+	}
+}
+
+func TestValidateChoice_IncludeCCR(t *testing.T) {
+	for _, value := range []string{"true", "false"} {
+		if err := validateChoice("include_ccr", value); err != nil {
+			t.Errorf("include_ccr=%q should pass, got %v", value, err)
+		}
+	}
+	for _, bad := range []string{"", "yes", "1", "True"} {
+		if err := validateChoice("include_ccr", bad); err == nil {
+			t.Errorf("include_ccr=%q should fail validation", bad)
+		}
+	}
+}
+
+func TestValidateChoice_Skip(t *testing.T) {
+	for _, value := range []string{"true", "false"} {
+		if err := validateChoice("skip", value); err != nil {
+			t.Errorf("skip=%q should pass, got %v", value, err)
+		}
+	}
+	if err := validateChoice("skip", "maybe"); err == nil {
+		t.Errorf("skip=maybe should fail")
+	}
+}
+
+func TestValidateChoice_UnknownKind(t *testing.T) {
+	if err := validateChoice("not_a_kind", "true"); err == nil {
+		t.Errorf("unknown choice_kind should fail")
+	}
+}
+
+func TestToCalcOptionsAddendum_PerCardAppellant(t *testing.T) {
+	choices := []models.ProjectEventChoice{
+		{SubmissionCode: "upc.inf.cfi.decision", ChoiceKind: "appellant", ChoiceValue: "defendant"},
+		{SubmissionCode: "de.inf.lg.urteil", ChoiceKind: "appellant", ChoiceValue: "both"},
+	}
+	out := ToCalcOptionsAddendum(choices)
+	if out.PerCardAppellant["upc.inf.cfi.decision"] != "defendant" {
+		t.Errorf("appellant pick for upc.inf.cfi.decision = %q, want defendant", out.PerCardAppellant["upc.inf.cfi.decision"])
+	}
+	if out.PerCardAppellant["de.inf.lg.urteil"] != "both" {
+		t.Errorf("appellant pick for de.inf.lg.urteil = %q, want both", out.PerCardAppellant["de.inf.lg.urteil"])
+	}
+	if len(out.SkipRules) != 0 || len(out.IncludeCCRFor) != 0 {
+		t.Errorf("appellant-only input should not populate skip/include_ccr maps")
+	}
+}
+
+func TestToCalcOptionsAddendum_SkipRules(t *testing.T) {
+	choices := []models.ProjectEventChoice{
+		{SubmissionCode: "upc.inf.cfi.ccr", ChoiceKind: "skip", ChoiceValue: "true"},
+		{SubmissionCode: "upc.inf.cfi.prelim", ChoiceKind: "skip", ChoiceValue: "false"},
+	}
+	out := ToCalcOptionsAddendum(choices)
+	if _, ok := out.SkipRules["upc.inf.cfi.ccr"]; !ok {
+		t.Errorf("skip=true should populate SkipRules")
+	}
+	if _, ok := out.SkipRules["upc.inf.cfi.prelim"]; ok {
+		t.Errorf("skip=false should NOT populate SkipRules")
+	}
+}
+
+func TestToCalcOptionsAddendum_IncludeCCRFor(t *testing.T) {
+	choices := []models.ProjectEventChoice{
+		{SubmissionCode: "upc.inf.cfi.sod", ChoiceKind: "include_ccr", ChoiceValue: "true"},
+		{SubmissionCode: "de.inf.lg.erwidg", ChoiceKind: "include_ccr", ChoiceValue: "false"},
+	}
+	out := ToCalcOptionsAddendum(choices)
+	if _, ok := out.IncludeCCRFor["upc.inf.cfi.sod"]; !ok {
+		t.Errorf("include_ccr=true should populate IncludeCCRFor")
+	}
+	if _, ok := out.IncludeCCRFor["de.inf.lg.erwidg"]; ok {
+		t.Errorf("include_ccr=false should NOT populate IncludeCCRFor")
+	}
+}
+
+func TestToCalcOptionsAddendum_EmptyInput(t *testing.T) {
+	out := ToCalcOptionsAddendum(nil)
+	if out.PerCardAppellant == nil || out.SkipRules == nil || out.IncludeCCRFor == nil {
+		t.Errorf("empty input should still produce non-nil maps for safe indexing")
+	}
+	if len(out.PerCardAppellant) != 0 || len(out.SkipRules) != 0 || len(out.IncludeCCRFor) != 0 {
+		t.Errorf("empty input should produce empty maps")
+	}
+}

internal/services/filter_spec.go

@@ -51,13 +51,20 @@ const SpecVersion = 1
 // can't bury an in-flight approval, per the design doc §3 carve-out).
 // Set by the bar's `unread_only` axis on /inbox; other surfaces leave
 // it false and the spec is a no-op.
+//
+// Predicates is a flat per-source narrowing record: keys at the top
+// level are data sources ("deadline", "appointment", …) and values are
+// the per-source predicate structs directly. The shape on the wire and
+// the shape the frontend emits agree exactly — see t-paliad-283 for the
+// latent contract bug (Go used to wrap each entry in another Predicates
+// struct, so the frontend's overlay clicks parsed back as no-op).
 type FilterSpec struct {
-	Version    int                       `json:"version"`
-	Sources    []DataSource              `json:"sources"`
-	Scope      ScopeSpec                 `json:"scope"`
-	Time       TimeSpec                  `json:"time"`
-	Predicates map[DataSource]Predicates `json:"predicates,omitempty"`
-	UnreadOnly bool                      `json:"unread_only,omitempty"`
+	Version    int          `json:"version"`
+	Sources    []DataSource `json:"sources"`
+	Scope      ScopeSpec    `json:"scope"`
+	Time       TimeSpec     `json:"time"`
+	Predicates *Predicates  `json:"predicates,omitempty"`
+	UnreadOnly bool         `json:"unread_only,omitempty"`
 }
 
 // ScopeSpec narrows which projects contribute rows. Resolved at query
@@ -147,7 +154,8 @@ const (
 )
 
 // Predicates is the per-source narrowing payload. Empty fields mean
-// "no narrowing" — never "exclude all".
+// "no narrowing" — never "exclude all". One field per data source;
+// the wire shape is the same: `{"deadline": {...}, "appointment": {...}}`.
 type Predicates struct {
 	Deadline        *DeadlinePredicates        `json:"deadline,omitempty"`
 	Appointment     *AppointmentPredicates     `json:"appointment,omitempty"`
@@ -305,14 +313,25 @@ func (s *FilterSpec) Validate() error {
 		return err
 	}
 
-	for src, preds := range s.Predicates {
-		if !isKnownSource(src) {
-			return fmt.Errorf("%w: predicates set on unknown source %q", ErrInvalidInput, src)
+	if s.Predicates != nil {
+		// Reject predicates set on a source the spec doesn't list — we'd
+		// silently drop the narrowing otherwise. Walk the set fields.
+		type srcCheck struct {
+			src     DataSource
+			present bool
 		}
-		if !seen[src] {
-			return fmt.Errorf("%w: predicates set on source %q which is not selected", ErrInvalidInput, src)
+		checks := []srcCheck{
+			{SourceDeadline, s.Predicates.Deadline != nil},
+			{SourceAppointment, s.Predicates.Appointment != nil},
+			{SourceProjectEvent, s.Predicates.ProjectEvent != nil},
+			{SourceApprovalRequest, s.Predicates.ApprovalRequest != nil},
 		}
-		if err := preds.validate(); err != nil {
+		for _, c := range checks {
+			if c.present && !seen[c.src] {
+				return fmt.Errorf("%w: predicates set on source %q which is not selected", ErrInvalidInput, c.src)
+			}
+		}
+		if err := s.Predicates.validate(); err != nil {
 			return err
 		}
 	}

internal/services/filter_spec_predicates_test.go

@@ -0,0 +1,125 @@
+package services
+
+import (
+	"encoding/json"
+	"testing"
+)
+
+// t-paliad-283 regression: the bar's chip clicks POST a `predicates`
+// payload shaped as `{<source>: <per-source>}`. The Go side previously
+// declared `Predicates map[DataSource]Predicates` — a doubled-nested
+// shape — which silently unmarshalled the bar's payload as no-op
+// narrowing. This test pins the wire shape so the contract can't drift
+// again.
+//
+// Run with `go test ./internal/services/`.
+
+func TestFilterSpec_FlatPredicatesWireShape(t *testing.T) {
+	// The shape every chip click in the FilterBar emits: predicates is
+	// keyed by data source, value is the per-source predicate struct
+	// directly. Doubled-nesting would unmarshal as empty Predicates.
+	const wire = `{
+		"version": 1,
+		"sources": ["deadline", "appointment", "project_event", "approval_request"],
+		"scope": {"projects": {"mode": "all_visible"}},
+		"time": {"field": "auto", "horizon": "past_30d"},
+		"predicates": {
+			"deadline": {"status": ["pending"]},
+			"appointment": {"appointment_types": ["hearing"]},
+			"project_event": {"event_types": ["deadline_created"]},
+			"approval_request": {"viewer_role": "any_visible", "status": ["pending"]}
+		}
+	}`
+
+	var spec FilterSpec
+	if err := json.Unmarshal([]byte(wire), &spec); err != nil {
+		t.Fatalf("unmarshal: %v", err)
+	}
+	if err := spec.Validate(); err != nil {
+		t.Fatalf("validate: %v", err)
+	}
+	if spec.Predicates == nil {
+		t.Fatal("predicates must be non-nil after unmarshalling the bar's shape")
+	}
+	if spec.Predicates.Deadline == nil || len(spec.Predicates.Deadline.Status) != 1 || spec.Predicates.Deadline.Status[0] != "pending" {
+		t.Errorf("deadline.status must round-trip, got %+v", spec.Predicates.Deadline)
+	}
+	if spec.Predicates.Appointment == nil || len(spec.Predicates.Appointment.AppointmentTypes) != 1 {
+		t.Errorf("appointment.appointment_types must round-trip, got %+v", spec.Predicates.Appointment)
+	}
+	if spec.Predicates.ProjectEvent == nil || len(spec.Predicates.ProjectEvent.EventTypes) != 1 {
+		t.Errorf("project_event.event_types must round-trip, got %+v", spec.Predicates.ProjectEvent)
+	}
+	if spec.Predicates.ApprovalRequest == nil || spec.Predicates.ApprovalRequest.ViewerRole != "any_visible" {
+		t.Errorf("approval_request.viewer_role must round-trip, got %+v", spec.Predicates.ApprovalRequest)
+	}
+}
+
+// The shipped FilterSpec must marshal back to exactly the flat shape
+// the frontend declares in views/types.ts. Otherwise /api/views/system
+// (which serializes the InboxSystemView's Filter for the bar) returns a
+// shape the frontend can't consume without translation gymnastics.
+func TestFilterSpec_MarshalFlatPredicatesShape(t *testing.T) {
+	spec := FilterSpec{
+		Version: SpecVersion,
+		Sources: []DataSource{SourceDeadline},
+		Scope:   ScopeSpec{Projects: ScopeProjects{Mode: ScopeAllVisible}},
+		Time:    TimeSpec{Horizon: HorizonNext30d, Field: FieldAuto},
+		Predicates: &Predicates{
+			Deadline: &DeadlinePredicates{Status: []string{"pending"}},
+		},
+	}
+	b, err := json.Marshal(spec)
+	if err != nil {
+		t.Fatalf("marshal: %v", err)
+	}
+	// Parse back generically so the assertion is on the wire shape, not
+	// on the Go type system that produced it.
+	var raw map[string]json.RawMessage
+	if err := json.Unmarshal(b, &raw); err != nil {
+		t.Fatalf("re-unmarshal: %v", err)
+	}
+	var preds map[string]json.RawMessage
+	if err := json.Unmarshal(raw["predicates"], &preds); err != nil {
+		t.Fatalf("predicates re-unmarshal: %v", err)
+	}
+	dl, ok := preds["deadline"]
+	if !ok {
+		t.Fatal("predicates.deadline missing — wire shape regressed")
+	}
+	var dlBody map[string]json.RawMessage
+	if err := json.Unmarshal(dl, &dlBody); err != nil {
+		t.Fatalf("deadline body unmarshal: %v", err)
+	}
+	if _, ok := dlBody["status"]; !ok {
+		t.Errorf("predicates.deadline.status must be a top-level field; doubled-nesting reappeared. Body: %s", string(dl))
+	}
+	if _, ok := dlBody["deadline"]; ok {
+		t.Errorf("predicates.deadline must NOT wrap a nested deadline key — that's the t-paliad-283 bug. Body: %s", string(dl))
+	}
+}
+
+// End-to-end pin: the bar's payload after the user clicks
+// "Frist-Status: Erledigt" (completed) must produce a spec whose
+// runDeadlines branch narrows to completed deadlines. Without the
+// t-paliad-283 fix, the unmarshal silently produced an empty Predicates
+// and the SQL ran without the `status='completed'` clause.
+func TestFilterSpec_BarChipPayloadNarrowsDeadlineStatus(t *testing.T) {
+	const barPayload = `{
+		"version": 1,
+		"sources": ["deadline"],
+		"scope": {"projects": {"mode": "all_visible"}},
+		"time": {"field": "auto", "horizon": "past_30d"},
+		"predicates": {"deadline": {"status": ["completed"]}}
+	}`
+	var spec FilterSpec
+	if err := json.Unmarshal([]byte(barPayload), &spec); err != nil {
+		t.Fatalf("unmarshal: %v", err)
+	}
+	if spec.Predicates == nil || spec.Predicates.Deadline == nil {
+		t.Fatal("deadline predicate must survive the round-trip")
+	}
+	if len(spec.Predicates.Deadline.Status) != 1 || spec.Predicates.Deadline.Status[0] != "completed" {
+		t.Errorf("deadline.status must be [\"completed\"], got %+v", spec.Predicates.Deadline.Status)
+	}
+}

internal/services/filter_spec_test.go

@@ -180,8 +180,8 @@ func TestFilterSpec_NewSymmetricHorizonsValidate(t *testing.T) {
 func TestFilterSpec_PredicatesRequireSourceSelected(t *testing.T) {
 	s := validBaseSpec()
 	s.Sources = []DataSource{SourceDeadline}
-	s.Predicates = map[DataSource]Predicates{
-		SourceAppointment: {Appointment: &AppointmentPredicates{AppointmentTypes: []string{"hearing"}}},
+	s.Predicates = &Predicates{
+		Appointment: &AppointmentPredicates{AppointmentTypes: []string{"hearing"}},
 	}
 	if err := s.Validate(); !errors.Is(err, ErrInvalidInput) {
 		t.Fatalf("predicates on unselected source must reject, got %v", err)
@@ -190,8 +190,8 @@ func TestFilterSpec_PredicatesRequireSourceSelected(t *testing.T) {
 
 func TestFilterSpec_DeadlineStatusEnum(t *testing.T) {
 	s := validBaseSpec()
-	s.Predicates = map[DataSource]Predicates{
-		SourceDeadline: {Deadline: &DeadlinePredicates{Status: []string{"weird"}}},
+	s.Predicates = &Predicates{
+		Deadline: &DeadlinePredicates{Status: []string{"weird"}},
 	}
 	if err := s.Validate(); !errors.Is(err, ErrInvalidInput) {
 		t.Fatalf("unknown deadline.status must reject, got %v", err)
@@ -201,8 +201,8 @@ func TestFilterSpec_DeadlineStatusEnum(t *testing.T) {
 func TestFilterSpec_AppointmentTypeEnum(t *testing.T) {
 	s := validBaseSpec()
 	s.Sources = append(s.Sources, SourceAppointment)
-	s.Predicates = map[DataSource]Predicates{
-		SourceAppointment: {Appointment: &AppointmentPredicates{AppointmentTypes: []string{"bogus"}}},
+	s.Predicates = &Predicates{
+		Appointment: &AppointmentPredicates{AppointmentTypes: []string{"bogus"}},
 	}
 	if err := s.Validate(); !errors.Is(err, ErrInvalidInput) {
 		t.Fatalf("unknown appointment_type must reject, got %v", err)
@@ -212,8 +212,8 @@ func TestFilterSpec_AppointmentTypeEnum(t *testing.T) {
 func TestFilterSpec_ProjectEventKindMustBeKnown(t *testing.T) {
 	s := validBaseSpec()
 	s.Sources = []DataSource{SourceProjectEvent}
-	s.Predicates = map[DataSource]Predicates{
-		SourceProjectEvent: {ProjectEvent: &ProjectEventPredicates{EventTypes: []string{"unknown_kind"}}},
+	s.Predicates = &Predicates{
+		ProjectEvent: &ProjectEventPredicates{EventTypes: []string{"unknown_kind"}},
 	}
 	if err := s.Validate(); !errors.Is(err, ErrInvalidInput) {
 		t.Fatalf("unknown project_event kind must reject, got %v", err)
@@ -223,8 +223,8 @@ func TestFilterSpec_ProjectEventKindMustBeKnown(t *testing.T) {
 func TestFilterSpec_ApprovalViewerRoleEnum(t *testing.T) {
 	s := validBaseSpec()
 	s.Sources = []DataSource{SourceApprovalRequest}
-	s.Predicates = map[DataSource]Predicates{
-		SourceApprovalRequest: {ApprovalRequest: &ApprovalRequestPredicates{ViewerRole: "everyone"}},
+	s.Predicates = &Predicates{
+		ApprovalRequest: &ApprovalRequestPredicates{ViewerRole: "everyone"},
 	}
 	if err := s.Validate(); !errors.Is(err, ErrInvalidInput) {
 		t.Fatalf("unknown viewer_role must reject, got %v", err)
@@ -234,8 +234,8 @@ func TestFilterSpec_ApprovalViewerRoleEnum(t *testing.T) {
 func TestFilterSpec_ApprovalRequestStatusEnum(t *testing.T) {
 	s := validBaseSpec()
 	s.Sources = []DataSource{SourceApprovalRequest}
-	s.Predicates = map[DataSource]Predicates{
-		SourceApprovalRequest: {ApprovalRequest: &ApprovalRequestPredicates{Status: []string{"weird"}}},
+	s.Predicates = &Predicates{
+		ApprovalRequest: &ApprovalRequestPredicates{Status: []string{"weird"}},
 	}
 	if err := s.Validate(); !errors.Is(err, ErrInvalidInput) {
 		t.Fatalf("unknown approval_request.status must reject, got %v", err)
@@ -251,15 +251,15 @@ func TestFilterSpec_RoundTripJSON(t *testing.T) {
 			PersonalOnly: false,
 		},
 		Time: TimeSpec{Horizon: HorizonNext30d, Field: FieldAuto},
-		Predicates: map[DataSource]Predicates{
-			SourceDeadline: {Deadline: &DeadlinePredicates{
+		Predicates: &Predicates{
+			Deadline: &DeadlinePredicates{
 				Status:         []string{"pending"},
 				ApprovalStatus: []string{"approved", "pending"},
-			}},
-			SourceApprovalRequest: {ApprovalRequest: &ApprovalRequestPredicates{
+			},
+			ApprovalRequest: &ApprovalRequestPredicates{
 				ViewerRole: "approver_eligible",
 				Status:     []string{"pending"},
-			}},
+			},
 		},
 	}
 	b, err := MarshalFilterSpec(original)

internal/services/fristenrechner_sort_test.go

@@ -0,0 +1,221 @@
+package services
+
+// Pure-function tests for the trigger-group duration sort introduced
+// by t-paliad-296 / m/paliad#128. No DB needed — feeds synthetic
+// UIDeadlines and a ruleByID map directly into the helper.
+
+import (
+	"testing"
+
+	"github.com/google/uuid"
+
+	"mgit.msbls.de/m/paliad/internal/models"
+)
+
+// makeRule is a tiny constructor for a synthetic rule with just the
+// fields the sort reads (parent_id, duration_value, duration_unit,
+// submission_code, trigger_event_id).
+func makeRule(t *testing.T, parent *uuid.UUID, code string, val int, unit string) (uuid.UUID, models.DeadlineRule) {
+	t.Helper()
+	id := uuid.New()
+	codeCopy := code
+	return id, models.DeadlineRule{
+		ID:             id,
+		ParentID:       parent,
+		SubmissionCode: &codeCopy,
+		DurationValue:  val,
+		DurationUnit:   unit,
+	}
+}
+
+func makeDeadline(id uuid.UUID, code string) UIDeadline {
+	return UIDeadline{
+		RuleID: id.String(),
+		Code:   code,
+	}
+}
+
+// TestSortDeadlinesByDurationWithinTriggerGroup_PostDecision is the
+// canonical scenario from m's report — four post-decision optional
+// events anchored on the same decision must render with 1-month rules
+// before 2-month rules.
+func TestSortDeadlinesByDurationWithinTriggerGroup_PostDecision(t *testing.T) {
+	decisionID := uuid.New()
+
+	// Catalog order matches mig 132 sequence_order: cons_orders(60),
+	// cost_app(70), rectification(70), appeal_spawn(80).
+	consOrdID, consOrdRule := makeRule(t, &decisionID, "upc.inf.cfi.cons_orders", 2, "months")
+	costAppID, costAppRule := makeRule(t, &decisionID, "upc.inf.cfi.cost_app", 1, "months")
+	rectID, rectRule := makeRule(t, &decisionID, "upc.inf.cfi.rectification", 1, "months")
+	appealID, appealRule := makeRule(t, &decisionID, "upc.inf.cfi.appeal_spawn", 2, "months")
+
+	ruleByID := map[uuid.UUID]models.DeadlineRule{
+		consOrdID: consOrdRule,
+		costAppID: costAppRule,
+		rectID:    rectRule,
+		appealID:  appealRule,
+	}
+
+	deadlines := []UIDeadline{
+		makeDeadline(consOrdID, "upc.inf.cfi.cons_orders"),
+		makeDeadline(costAppID, "upc.inf.cfi.cost_app"),
+		makeDeadline(rectID, "upc.inf.cfi.rectification"),
+		makeDeadline(appealID, "upc.inf.cfi.appeal_spawn"),
+	}
+
+	sortDeadlinesByDurationWithinTriggerGroup(deadlines, ruleByID)
+
+	// 1-month tier first (cost_app, rectification — alphabetical by
+	// submission_code), then 2-month tier (appeal_spawn, cons_orders
+	// — submission_code ASC tiebreak per spec).
+	want := []string{
+		"upc.inf.cfi.cost_app",
+		"upc.inf.cfi.rectification",
+		"upc.inf.cfi.appeal_spawn",
+		"upc.inf.cfi.cons_orders",
+	}
+	for i, w := range want {
+		if deadlines[i].Code != w {
+			t.Errorf("deadlines[%d].Code = %q, want %q", i, deadlines[i].Code, w)
+		}
+	}
+}
+
+// TestSortDeadlinesByDurationWithinTriggerGroup_UnitWeight asserts the
+// unit-weight ordering: days < weeks < months < years, with shorter
+// durations of the same unit winning their tier.
+func TestSortDeadlinesByDurationWithinTriggerGroup_UnitWeight(t *testing.T) {
+	parentID := uuid.New()
+
+	d14ID, d14Rule := makeRule(t, &parentID, "x.14days", 14, "days")
+	d2wID, d2wRule := makeRule(t, &parentID, "x.2weeks", 2, "weeks")
+	d1mID, d1mRule := makeRule(t, &parentID, "x.1month", 1, "months")
+	d6mID, d6mRule := makeRule(t, &parentID, "x.6months", 6, "months")
+	d1yID, d1yRule := makeRule(t, &parentID, "x.1year", 1, "years")
+
+	ruleByID := map[uuid.UUID]models.DeadlineRule{
+		d14ID: d14Rule, d2wID: d2wRule, d1mID: d1mRule, d6mID: d6mRule, d1yID: d1yRule,
+	}
+
+	deadlines := []UIDeadline{
+		makeDeadline(d6mID, "x.6months"),
+		makeDeadline(d1yID, "x.1year"),
+		makeDeadline(d2wID, "x.2weeks"),
+		makeDeadline(d14ID, "x.14days"),
+		makeDeadline(d1mID, "x.1month"),
+	}
+
+	sortDeadlinesByDurationWithinTriggerGroup(deadlines, ruleByID)
+
+	want := []string{"x.14days", "x.2weeks", "x.1month", "x.6months", "x.1year"}
+	for i, w := range want {
+		if deadlines[i].Code != w {
+			t.Errorf("deadlines[%d].Code = %q, want %q", i, deadlines[i].Code, w)
+		}
+	}
+}
+
+// TestSortDeadlinesByDurationWithinTriggerGroup_NoCrossGroupReorder
+// guards the hard rule: rules with different parents must keep their
+// relative position. Sorting only ever permutes adjacent same-parent
+// rows.
+func TestSortDeadlinesByDurationWithinTriggerGroup_NoCrossGroupReorder(t *testing.T) {
+	parentAID := uuid.New()
+	parentBID := uuid.New()
+
+	a3mID, a3mRule := makeRule(t, &parentAID, "ga.3months", 3, "months")
+	b1mID, b1mRule := makeRule(t, &parentBID, "gb.1month", 1, "months")
+	a14dID, a14dRule := makeRule(t, &parentAID, "ga.14days", 14, "days")
+	b2mID, b2mRule := makeRule(t, &parentBID, "gb.2months", 2, "months")
+
+	ruleByID := map[uuid.UUID]models.DeadlineRule{
+		a3mID: a3mRule, b1mID: b1mRule, a14dID: a14dRule, b2mID: b2mRule,
+	}
+
+	// Interleaved groups: A, B, A, B. Each group has one rule between
+	// each other group's rules — the consecutive-run walk should treat
+	// each as its own one-element run and not reorder anything.
+	deadlines := []UIDeadline{
+		makeDeadline(a3mID, "ga.3months"),
+		makeDeadline(b1mID, "gb.1month"),
+		makeDeadline(a14dID, "ga.14days"),
+		makeDeadline(b2mID, "gb.2months"),
+	}
+
+	sortDeadlinesByDurationWithinTriggerGroup(deadlines, ruleByID)
+
+	want := []string{"ga.3months", "gb.1month", "ga.14days", "gb.2months"}
+	for i, w := range want {
+		if deadlines[i].Code != w {
+			t.Errorf("deadlines[%d].Code = %q, want %q (interleaved groups must not reorder across)", i, deadlines[i].Code, w)
+		}
+	}
+}
+
+// TestSortDeadlinesByDurationWithinTriggerGroup_ConditionalLast asserts
+// that court-set / conditional rows (no concrete date in the duration
+// ladder) sort LAST within their group, regardless of their stated
+// duration value.
+func TestSortDeadlinesByDurationWithinTriggerGroup_ConditionalLast(t *testing.T) {
+	parentID := uuid.New()
+
+	dID, dRule := makeRule(t, &parentID, "x.duration", 2, "months")
+	cID, cRule := makeRule(t, &parentID, "x.conditional", 1, "months")
+	csID, csRule := makeRule(t, &parentID, "x.courtset", 1, "months")
+	d2ID, d2Rule := makeRule(t, &parentID, "x.short", 14, "days")
+
+	ruleByID := map[uuid.UUID]models.DeadlineRule{
+		dID: dRule, cID: cRule, csID: csRule, d2ID: d2Rule,
+	}
+
+	deadlines := []UIDeadline{
+		{RuleID: cID.String(), Code: "x.conditional", IsConditional: true},
+		{RuleID: dID.String(), Code: "x.duration"},
+		{RuleID: csID.String(), Code: "x.courtset", IsCourtSet: true},
+		{RuleID: d2ID.String(), Code: "x.short"},
+	}
+
+	sortDeadlinesByDurationWithinTriggerGroup(deadlines, ruleByID)
+
+	// Concrete rows first (sorted by duration): x.short (14d) then
+	// x.duration (2mo). Then the two no-date rows, tiebroken by code:
+	// x.conditional < x.courtset alphabetically.
+	want := []string{"x.short", "x.duration", "x.conditional", "x.courtset"}
+	for i, w := range want {
+		if deadlines[i].Code != w {
+			t.Errorf("deadlines[%d].Code = %q, want %q", i, deadlines[i].Code, w)
+		}
+	}
+}
+
+// TestSortDeadlinesByDurationWithinTriggerGroup_RootsNotMerged guards
+// the root-rule exception: top-level rules (parent_id=nil, no
+// trigger_event_id) must never be sorted against each other — they
+// represent distinct anchor points (SoC vs oral hearing vs decision)
+// whose proceeding-sequence order is non-negotiable.
+func TestSortDeadlinesByDurationWithinTriggerGroup_RootsNotMerged(t *testing.T) {
+	rootSoCID, rootSoCRule := makeRule(t, nil, "x.soc", 0, "months")
+	rootOralID, rootOralRule := makeRule(t, nil, "x.oral", 0, "months")
+	rootDecID, rootDecRule := makeRule(t, nil, "x.decision", 0, "months")
+
+	ruleByID := map[uuid.UUID]models.DeadlineRule{
+		rootSoCID: rootSoCRule, rootOralID: rootOralRule, rootDecID: rootDecRule,
+	}
+
+	deadlines := []UIDeadline{
+		makeDeadline(rootSoCID, "x.soc"),
+		makeDeadline(rootOralID, "x.oral"),
+		makeDeadline(rootDecID, "x.decision"),
+	}
+
+	sortDeadlinesByDurationWithinTriggerGroup(deadlines, ruleByID)
+
+	// Roots must keep their input order — they're not in the same
+	// trigger group as each other.
+	want := []string{"x.soc", "x.oral", "x.decision"}
+	for i, w := range want {
+		if deadlines[i].Code != w {
+			t.Errorf("deadlines[%d].Code = %q, want %q (roots must not be sorted against each other)", i, deadlines[i].Code, w)
+		}
+	}
+}

internal/services/fristenrechner_test.go

@@ -450,3 +450,182 @@ func TestUIDeadline_WireShape_Slice8(t *testing.T) {
 		t.Logf("warning: no upc.inf.cfi rule had conditionExpr populated — verify mig 084 ran")
 	}
 }
+
+// t-paliad-289: rules anchored on uncertain triggers must render as
+// conditional (IsConditional=true, empty DueDate, ParentRule* populated)
+// rather than fabricating a date off the trigger.
+//
+// Three pillars from the issue:
+//   - Symptom A: R.109(1) Antrag auf Simultanübersetzung (timing='before',
+//     parent=Mündliche Verhandlung which is court-set). Pre-fix the rule
+//     computed a meaningless "1 month before today" because sequence_order
+//     places translation_request (45) before oral (50), so the parent
+//     hadn't been classified as court-set yet. The new pre-pass in
+//     Calculate seeds courtSet from is_court_set=true on the data, so
+//     order-of-evaluation no longer matters.
+//   - R.118(4) cons_orders (parent=Entscheidung, court-set) — already
+//     worked via the legacy IsCourtSetIndirect path; assertion ensures
+//     the new IsConditional flag rides alongside it.
+//   - Symptom B: R.262(2) confidentiality_response (priority='optional',
+//     primary_party='both', parent=SoC which is the trigger anchor).
+//     The data-model parent is "always certain" but the real triggering
+//     event (opposing party's confidentiality motion) sits outside the
+//     rule data — render conditional until the user anchors the rule.
+func TestUIDeadline_IsConditional_UncertainAnchors(t *testing.T) {
+	url := os.Getenv("TEST_DATABASE_URL")
+	if url == "" {
+		t.Skip("TEST_DATABASE_URL not set — skipping live DB test")
+	}
+	if err := db.ApplyMigrations(url); err != nil {
+		t.Fatalf("apply migrations: %v", err)
+	}
+	pool, err := sqlx.Connect("postgres", url)
+	if err != nil {
+		t.Fatalf("connect: %v", err)
+	}
+	defer pool.Close()
+
+	ctx := context.Background()
+	holidays := NewHolidayService(pool)
+	rules := NewDeadlineRuleService(pool)
+	courts := NewCourtService(pool)
+	svc := NewFristenrechnerService(rules, holidays, courts)
+
+	resp, err := svc.Calculate(ctx, CodeUPCInfringement, "2026-05-25", CalcOptions{})
+	if err != nil {
+		t.Fatalf("Calculate: %v", err)
+	}
+
+	byCode := map[string]UIDeadline{}
+	for _, d := range resp.Deadlines {
+		byCode[d.Code] = d
+	}
+
+	cases := []struct {
+		code           string
+		wantConditional bool
+		wantParentCode string
+	}{
+		// Symptom A — backward-anchored on the court-set oral hearing.
+		// Pre-pass fix: order-of-evaluation no longer matters. These
+		// rules have no trigger_event_id, so ParentRuleCode stays on
+		// the parent_id-derived value.
+		{"upc.inf.cfi.translation_request", true, "upc.inf.cfi.oral"},
+		{"upc.inf.cfi.interpreter_cost", true, "upc.inf.cfi.oral"},
+		// R.118(4) chain — parent=decision (court-set). No trigger_event_id.
+		{"upc.inf.cfi.cons_orders", true, "upc.inf.cfi.decision"},
+		// Symptom B — optional + both, data-model parent is SoC but the
+		// real trigger is the opposing party's confidentiality application.
+		// m/paliad#126 / t-paliad-294: ParentRuleCode now reflects the
+		// trigger_events catalog row (id=25), NOT the parent_id chain.
+		{"upc.inf.cfi.confidentiality_response", true, "application_to_request_confidentiality_from_the_public"},
+		// Negative control — mandatory rule anchored on SoC must keep
+		// its concrete date (no IsConditional, real DueDate). No
+		// trigger_event_id, so parent_id-derived code stays.
+		{"upc.inf.cfi.sod", false, "upc.inf.cfi.soc"},
+	}
+
+	for _, c := range cases {
+		t.Run(c.code, func(t *testing.T) {
+			d, ok := byCode[c.code]
+			if !ok {
+				t.Fatalf("rule %s missing from response", c.code)
+			}
+			if d.IsConditional != c.wantConditional {
+				t.Errorf("IsConditional = %v, want %v", d.IsConditional, c.wantConditional)
+			}
+			if c.wantConditional {
+				if d.DueDate != "" {
+					t.Errorf("DueDate = %q, want empty (conditional)", d.DueDate)
+				}
+				if d.ParentRuleCode != c.wantParentCode {
+					t.Errorf("ParentRuleCode = %q, want %q", d.ParentRuleCode, c.wantParentCode)
+				}
+				if d.ParentRuleName == "" {
+					t.Errorf("ParentRuleName empty for conditional rule")
+				}
+			} else {
+				if d.DueDate == "" {
+					t.Errorf("non-conditional rule has empty DueDate")
+				}
+			}
+		})
+	}
+
+	// m/paliad#126 / t-paliad-294: the conditional chip for R.262(2)
+	// reads from the trigger_events catalog (id=25), so the user sees
+	// the actual semantic anchor instead of the parent_id-derived
+	// "Klageerhebung". Pin the exact DE + EN strings so a future
+	// rename of the catalog row surfaces here.
+	t.Run("R.262(2) conditional label uses trigger_event_id, not parent_id", func(t *testing.T) {
+		d, ok := byCode["upc.inf.cfi.confidentiality_response"]
+		if !ok {
+			t.Fatalf("confidentiality_response missing from response")
+		}
+		const wantNameDE = "Antrag auf Vertraulichkeit gegenüber der Öffentlichkeit"
+		const wantNameEN = "Application to request confidentiality from the public"
+		if d.ParentRuleName != wantNameDE {
+			t.Errorf("ParentRuleName = %q, want %q (trigger_events.name_de for id=25)", d.ParentRuleName, wantNameDE)
+		}
+		if d.ParentRuleNameEN != wantNameEN {
+			t.Errorf("ParentRuleNameEN = %q, want %q (trigger_events.name for id=25)", d.ParentRuleNameEN, wantNameEN)
+		}
+		// Negative guard — neither label should leak the SoC ("Klageerhebung"),
+		// which is the regression the fix exists to prevent.
+		if d.ParentRuleName == "Klageerhebung" || d.ParentRuleNameEN == "Statement of Claim" {
+			t.Errorf("conditional label still resolves via parent_id (SoC); fix regressed")
+		}
+	})
+
+	// Generalisation guard — translations_lodge also carries a real
+	// trigger_event_id (113 = judge-rapporteur's order). Its
+	// conditional chip should reference the order, not its parent_id
+	// (Zwischenverfahren). Locks in the "any rule with trigger_event_id
+	// uses THAT, not parent_id" contract from m/paliad#126.
+	t.Run("translations_lodge conditional label uses trigger_event_id", func(t *testing.T) {
+		d, ok := byCode["upc.inf.cfi.translations_lodge"]
+		if !ok {
+			t.Skip("upc.inf.cfi.translations_lodge missing from response — data drift?")
+		}
+		if !d.IsConditional {
+			t.Skipf("translations_lodge IsConditional=false in current corpus; trigger-event override is only user-visible on conditional rows. Skip but keep the generalisation guard.")
+		}
+		if d.ParentRuleName == "Zwischenverfahren" {
+			t.Errorf("translations_lodge still labelled via parent_id (Zwischenverfahren); should follow trigger_event_id=113")
+		}
+		if d.ParentRuleCode != "order_of_the_judge_rapporteur_to_lodge_translations" {
+			t.Errorf("ParentRuleCode = %q, want trigger_events.code for id=113", d.ParentRuleCode)
+		}
+	})
+
+	// Override path: when the user anchors the oral hearing, the
+	// backward-anchored R.109(1) flips back to a concrete date and
+	// IsConditional clears. This is the click-to-edit unblock.
+	t.Run("override on court-set parent clears IsConditional", func(t *testing.T) {
+		resp2, err := svc.Calculate(ctx, CodeUPCInfringement, "2026-05-25", CalcOptions{
+			AnchorOverrides: map[string]string{
+				"upc.inf.cfi.oral": "2027-03-01",
+			},
+		})
+		if err != nil {
+			t.Fatalf("Calculate with override: %v", err)
+		}
+		var tr UIDeadline
+		for _, d := range resp2.Deadlines {
+			if d.Code == "upc.inf.cfi.translation_request" {
+				tr = d
+				break
+			}
+		}
+		if tr.IsConditional {
+			t.Errorf("translation_request IsConditional=true after oral override; want false")
+		}
+		if tr.DueDate == "" {
+			t.Errorf("translation_request DueDate empty after oral override")
+		}
+		// 1 month before 2027-03-01 = ~2027-02-01 (with weekend bump).
+		if tr.DueDate < "2027-01-25" || tr.DueDate > "2027-02-05" {
+			t.Errorf("translation_request DueDate=%q not within expected 2027-01-25..2027-02-05 window", tr.DueDate)
+		}
+	})
+}

internal/services/holidays.go

@@ -8,6 +8,8 @@ import (
 	"time"
 
 	"github.com/jmoiron/sqlx"
+
+	"mgit.msbls.de/m/paliad/pkg/litigationplanner"
 )
 
 // Country and regime constants — keep in sync with the paliad.countries
@@ -229,38 +231,14 @@ func (s *HolidayService) AdjustForNonWorkingDays(date time.Time, country, regime
 // Feiertag" — so a 27-day shift across UPC vacation no longer looks like a
 // math bug. See t-paliad-119.
 //
-// Date fields are JSON-serialised as YYYY-MM-DD strings (the same convention
-// as UIDeadline.DueDate / OriginalDate) so the frontend doesn't need a
-// separate RFC3339 parser. Holidays carries the same string-date shape.
-type AdjustmentReason struct {
-	// Kind is the dominant cause; longest cause wins when several apply
-	// (vacation > public_holiday > weekend).
-	Kind string `json:"kind"`
-	// Holidays collects every named holiday encountered while walking past
-	// the non-working run, deduped by (date, name). May be empty when the
-	// only cause is a weekend.
-	Holidays []HolidayDTO `json:"holidays,omitempty"`
-	// VacationName, VacationStart and VacationEnd describe the contiguous
-	// vacation block the original date sits in. Populated only when Kind
-	// == "vacation". Span boundaries are the first/last vacation day in
-	// the block (excludes the weekends that pad it).
-	VacationName  string `json:"vacationName,omitempty"`
-	VacationStart string `json:"vacationStart,omitempty"`
-	VacationEnd   string `json:"vacationEnd,omitempty"`
-	// OriginalWeekday is the English weekday name of the original date —
-	// "Saturday" / "Sunday" — set only when Kind == "weekend" so the UI
-	// can localise it.
-	OriginalWeekday string `json:"originalWeekday,omitempty"`
-}
-
-// HolidayDTO is the JSON shape for a holiday emitted in AdjustmentReason —
-// distinct from Holiday so dates serialise as YYYY-MM-DD strings.
-type HolidayDTO struct {
-	Date       string `json:"date"`
-	Name       string `json:"name"`
-	IsVacation bool   `json:"isVacation,omitempty"`
-	IsClosure  bool   `json:"isClosure,omitempty"`
-}
+// Canonical AdjustmentReason + HolidayDTO definitions live in
+// pkg/litigationplanner — kept here as type aliases so every existing
+// reference (HolidayService methods, JSON serialisation, projection
+// service) continues to compile.
+type (
+	AdjustmentReason = litigationplanner.AdjustmentReason
+	HolidayDTO       = litigationplanner.HolidayDTO
+)
 
 // AdjustForNonWorkingDaysWithReason is AdjustForNonWorkingDays plus an
 // explanation. Reason is nil when wasAdjusted is false.

internal/services/lookup_events_test.go

@@ -0,0 +1,219 @@
+package services
+
+import (
+	"context"
+	"os"
+	"testing"
+
+	"github.com/jmoiron/sqlx"
+	_ "github.com/lib/pq"
+
+	"mgit.msbls.de/m/paliad/internal/db"
+	lp "mgit.msbls.de/m/paliad/pkg/litigationplanner"
+)
+
+// TestLookupEvents covers the multi-axis catalog query API from Slice
+// B2 (m/paliad#124 §18.2). Skipped when TEST_DATABASE_URL is unset,
+// mirroring TestCalculateRule.
+//
+// Cases:
+//   - jurisdiction=UPC, depth=all-following → every active+published
+//     UPC rule, anchor depth=1 for all (no parent_id outside the
+//     filtered set lights up depth>1 because the entire UPC subset is
+//     a single anchor cohort).
+//   - proceeding_type_id (upc.inf.cfi) + party=defendant + depth=next
+//     → defendant rules in upc.inf.cfi at depth=1 + direct children
+//     of those at depth=2.
+//   - unknown jurisdiction value → silently ignored, no filter applied.
+//   - empty axes → all rules (no filter on any axis).
+func TestLookupEvents(t *testing.T) {
+	url := os.Getenv("TEST_DATABASE_URL")
+	if url == "" {
+		t.Skip("TEST_DATABASE_URL not set — skipping live DB test")
+	}
+	if err := db.ApplyMigrations(url); err != nil {
+		t.Fatalf("apply migrations: %v", err)
+	}
+	pool, err := sqlx.Connect("postgres", url)
+	if err != nil {
+		t.Fatalf("connect: %v", err)
+	}
+	defer pool.Close()
+
+	ctx := context.Background()
+	rules := NewDeadlineRuleService(pool)
+	catalog := &paliadCatalog{rules: rules}
+
+	t.Run("jurisdiction=UPC, all-following returns the UPC corpus", func(t *testing.T) {
+		matches, err := catalog.LookupEvents(ctx, lp.EventLookupAxes{
+			Jurisdiction: "UPC",
+		}, lp.EventLookupDepthAllFollowing)
+		if err != nil {
+			t.Fatalf("LookupEvents: %v", err)
+		}
+		if len(matches) == 0 {
+			t.Fatal("expected non-empty UPC corpus")
+		}
+		// Every match must be a UPC rule.
+		for _, m := range matches {
+			if m.ProceedingType.Jurisdiction == nil || *m.ProceedingType.Jurisdiction != "UPC" {
+				t.Errorf("non-UPC row leaked into UPC-axis query: code=%s jurisdiction=%v",
+					m.ProceedingType.Code, m.ProceedingType.Jurisdiction)
+			}
+			if m.DepthFromAnchor < 1 {
+				t.Errorf("depth=%d for rule %s, want >= 1", m.DepthFromAnchor, m.Rule.ID)
+			}
+		}
+	})
+
+	t.Run("party=defendant scopes to defendant rules", func(t *testing.T) {
+		matches, err := catalog.LookupEvents(ctx, lp.EventLookupAxes{
+			Jurisdiction: "UPC",
+			Party:        "defendant",
+		}, lp.EventLookupDepthNext)
+		if err != nil {
+			t.Fatalf("LookupEvents: %v", err)
+		}
+		if len(matches) == 0 {
+			t.Fatal("expected at least one defendant rule across the UPC corpus")
+		}
+		// Anchor matches (depth=1) must be primary_party=defendant.
+		// Depth=2 children appear under EventLookupDepthNext only as
+		// expansion from anchors — they may carry any party.
+		for _, m := range matches {
+			if m.DepthFromAnchor != 1 {
+				continue
+			}
+			if m.Rule.PrimaryParty == nil || *m.Rule.PrimaryParty != "defendant" {
+				t.Errorf("anchor row %s (depth=1) is not defendant: %v",
+					m.Rule.Name, m.Rule.PrimaryParty)
+			}
+		}
+	})
+
+	t.Run("unknown jurisdiction value silently falls through", func(t *testing.T) {
+		matchesAll, err := catalog.LookupEvents(ctx, lp.EventLookupAxes{},
+			lp.EventLookupDepthAllFollowing)
+		if err != nil {
+			t.Fatalf("LookupEvents (all): %v", err)
+		}
+		matchesUnknown, err := catalog.LookupEvents(ctx, lp.EventLookupAxes{
+			Jurisdiction: "XX-not-a-real-jurisdiction",
+		}, lp.EventLookupDepthAllFollowing)
+		if err != nil {
+			t.Fatalf("LookupEvents (unknown): %v", err)
+		}
+		if len(matchesAll) != len(matchesUnknown) {
+			t.Errorf("unknown jurisdiction should fall through to no-filter; got %d vs all-axes %d",
+				len(matchesUnknown), len(matchesAll))
+		}
+	})
+
+	t.Run("appeal_target=endentscheidung returns upc.apl merits rules", func(t *testing.T) {
+		matches, err := catalog.LookupEvents(ctx, lp.EventLookupAxes{
+			Jurisdiction: "UPC",
+			AppealTarget: lp.AppealTargetEndentscheidung,
+		}, lp.EventLookupDepthAllFollowing)
+		if err != nil {
+			t.Fatalf("LookupEvents: %v", err)
+		}
+		// Should hit the 7 rules under the unified upc.apl that
+		// carry applies_to_target={endentscheidung} (Slice B1 mig 134).
+		if len(matches) == 0 {
+			t.Fatal("expected upc.apl endentscheidung rules after B1 mig")
+		}
+		for _, m := range matches {
+			if m.DepthFromAnchor != 1 {
+				continue // children of anchors may be from other targets
+			}
+			found := false
+			for _, t := range m.Rule.AppliesToTarget {
+				if t == lp.AppealTargetEndentscheidung {
+					found = true
+					break
+				}
+			}
+			if !found {
+				t.Errorf("anchor row %s missing endentscheidung target: %v",
+					m.Rule.Name, m.Rule.AppliesToTarget)
+			}
+			if m.ProceedingType.Code != "upc.apl.unified" {
+				t.Errorf("anchor row %s came from %s, want upc.apl.unified",
+					m.Rule.Name, m.ProceedingType.Code)
+			}
+		}
+	})
+
+	t.Run("appeal_target=schadensbemessung returns upc.apl merits rules (mig 138 backfill)", func(t *testing.T) {
+		matches, err := catalog.LookupEvents(ctx, lp.EventLookupAxes{
+			Jurisdiction: "UPC",
+			AppealTarget: lp.AppealTargetSchadensbemessung,
+		}, lp.EventLookupDepthAllFollowing)
+		if err != nil {
+			t.Fatalf("LookupEvents: %v", err)
+		}
+		// mig 138 (t-paliad-303, m/paliad#134) extends the 7 merits-track
+		// rules under upc.apl.unified with applies_to_target ⊇ {schadensbemessung}
+		// because R.224 is uniform across substantive R.118 decisions.
+		if len(matches) == 0 {
+			t.Fatal("expected upc.apl schadensbemessung rules after mig 138 backfill")
+		}
+		for _, m := range matches {
+			if m.DepthFromAnchor != 1 {
+				continue
+			}
+			found := false
+			for _, t := range m.Rule.AppliesToTarget {
+				if t == lp.AppealTargetSchadensbemessung {
+					found = true
+					break
+				}
+			}
+			if !found {
+				t.Errorf("anchor row %s missing schadensbemessung target: %v",
+					m.Rule.Name, m.Rule.AppliesToTarget)
+			}
+			if m.ProceedingType.Code != "upc.apl.unified" {
+				t.Errorf("anchor row %s came from %s, want upc.apl.unified",
+					m.Rule.Name, m.ProceedingType.Code)
+			}
+		}
+	})
+
+	t.Run("appeal_target=bucheinsicht returns upc.apl order rules (mig 138 backfill)", func(t *testing.T) {
+		matches, err := catalog.LookupEvents(ctx, lp.EventLookupAxes{
+			Jurisdiction: "UPC",
+			AppealTarget: lp.AppealTargetBucheinsicht,
+		}, lp.EventLookupDepthAllFollowing)
+		if err != nil {
+			t.Fatalf("LookupEvents: %v", err)
+		}
+		// mig 138 (t-paliad-303, m/paliad#134) extends the 7 order-track
+		// rules under upc.apl.unified with applies_to_target ⊇ {bucheinsicht}
+		// because R.220.2 / R.224.2.b / R.235.2 / R.237 / R.238.2 are
+		// uniform across the orders they appeal.
+		if len(matches) == 0 {
+			t.Fatal("expected upc.apl bucheinsicht rules after mig 138 backfill")
+		}
+		for _, m := range matches {
+			if m.DepthFromAnchor != 1 {
+				continue
+			}
+			found := false
+			for _, t := range m.Rule.AppliesToTarget {
+				if t == lp.AppealTargetBucheinsicht {
+					found = true
+					break
+				}
+			}
+			if !found {
+				t.Errorf("anchor row %s missing bucheinsicht target: %v",
+					m.Rule.Name, m.Rule.AppliesToTarget)
+			}
+			if m.ProceedingType.Code != "upc.apl.unified" {
+				t.Errorf("anchor row %s came from %s, want upc.apl.unified",
+					m.Rule.Name, m.ProceedingType.Code)
+			}
+		}
+	})
+}

internal/services/party_service.go

@@ -38,6 +38,59 @@ type CreatePartyInput struct {
 	ContactInfo    json.RawMessage `json:"contact_info,omitempty"`
 }
 
+// PartySearchHit is one row of the cross-project party search — a real
+// paliad.parties row enriched with the parent project's title and
+// reference so the picker can render context the lawyer needs to
+// disambiguate identically-named parties on different cases
+// (t-paliad-287).
+type PartySearchHit struct {
+	ID               uuid.UUID `db:"id"                json:"id"`
+	ProjectID        uuid.UUID `db:"project_id"        json:"project_id"`
+	ProjectTitle     string    `db:"project_title"     json:"project_title"`
+	ProjectReference *string   `db:"project_reference" json:"project_reference,omitempty"`
+	Name             string    `db:"name"              json:"name"`
+	Role             *string   `db:"role"              json:"role,omitempty"`
+	Representative   *string   `db:"representative"    json:"representative,omitempty"`
+}
+
+// Search returns parties from every project the caller can see, matched
+// by case-insensitive substring on name OR representative. Empty query
+// returns the 20 most recently-updated parties so the picker isn't
+// blank on first open. Capped at 25 rows; the frontend doesn't paginate
+// (the typical PA looks for one party they remember by name, not browses).
+//
+// Visibility is enforced inline via visibilityPredicatePositional —
+// invisible projects' parties never surface in the result set.
+func (s *PartyService) Search(ctx context.Context, userID uuid.UUID, query string, limit int) ([]PartySearchHit, error) {
+	if limit <= 0 || limit > 50 {
+		limit = 25
+	}
+	q := strings.TrimSpace(query)
+	args := []any{userID}
+	conds := []string{visibilityPredicatePositional("p", 1)}
+	if q != "" {
+		args = append(args, "%"+q+"%")
+		conds = append(conds,
+			fmt.Sprintf(`(pa.name ILIKE $%d OR COALESCE(pa.representative,'') ILIKE $%d)`,
+				len(args), len(args)))
+	}
+	args = append(args, limit)
+	sqlStr := `
+		SELECT pa.id, pa.project_id, p.title AS project_title,
+		       p.reference AS project_reference,
+		       pa.name, pa.role, pa.representative
+		  FROM paliad.parties pa
+		  JOIN paliad.projects p ON p.id = pa.project_id
+		 WHERE ` + strings.Join(conds, " AND ") + `
+		 ORDER BY pa.updated_at DESC
+		 LIMIT $` + fmt.Sprintf("%d", len(args))
+	hits := []PartySearchHit{}
+	if err := s.db.SelectContext(ctx, &hits, sqlStr, args...); err != nil {
+		return nil, fmt.Errorf("search parties: %w", err)
+	}
+	return hits, nil
+}
+
 // ListForProject returns all Parties for the Project, visibility-checked.
 func (s *PartyService) ListForProject(ctx context.Context, userID, projectID uuid.UUID) ([]models.Party, error) {
 	if _, err := s.projects.GetByID(ctx, userID, projectID); err != nil {

internal/services/proceeding_mapping.go

@@ -1,191 +1,63 @@
 package services
 
-// proceeding_mapping bridges the two proceeding-type vocabularies in the
-// codebase: the **litigation** conceptual category (INF / REV / APP /
-// CCR / AMD / APM / ZPO_CIVIL) used by the historical project-binding
-// + Pipeline-A rules, and the **fristenrechner** code category
-// (upc.inf.cfi / de.inf.lg / epa.opp.opd / …) used by the Determinator
-// cascade + rule engine. Post-Phase-3-Slice-5 (t-paliad-186) projects
-// bind to fristenrechner codes directly, but the litigation→fristenrechner
-// mapping is still needed for the ~40 Pipeline-A rules that remain on
-// litigation proceedings and for any other surface that thinks in
-// litigation terms.
-//
-// The mapping table here is the single source of truth — see
-// docs/design-determinator-row-cascade-2026-05-13.md §4.2 for the
-// design rationale + ambiguity notes, and
-// docs/design-proceeding-code-taxonomy-2026-05-18.md for the
-// lowercase dot-separated naming convention applied by mig 096
-// (t-paliad-206). **Never silent FK promotion**: every ambiguous case
-// returns ok=false so callers can degrade gracefully ("no narrowing")
-// instead of guessing.
+import lp "mgit.msbls.de/m/paliad/pkg/litigationplanner"
 
-// Stable code constants — the strings landed by mig 096. Use these
-// throughout the codebase so a future rename only needs to touch this
-// file. The id-anchored FKs (deadline_rules.proceeding_type_id,
-// projects.proceeding_type_id) are unaffected by the rename.
+// proceeding_mapping bridges the two proceeding-type vocabularies in
+// the codebase. The canonical implementations now live in
+// pkg/litigationplanner — this file keeps the existing service-level
+// names alive as re-exports so the rest of internal/services + tests
+// compile without an import-rewrite.
+//
+// See pkg/litigationplanner/proceeding_mapping.go for the logic +
+// docs/design-determinator-row-cascade-2026-05-13.md §4.2 for the
+// design rationale.
+
+// Stable code constants — re-exported from the package so existing
+// services / handlers can keep using the bare names.
 const (
-	CodeUPCInfringement       = "upc.inf.cfi"
-	CodeUPCRevocation         = "upc.rev.cfi"
-	CodeUPCCounterclaim       = "upc.ccr.cfi"
-	CodeUPCPreliminary        = "upc.pi.cfi"
-	CodeUPCDamages            = "upc.dmgs.cfi"
-	CodeUPCDiscovery          = "upc.disc.cfi"
-	CodeUPCAppealMerits       = "upc.apl.merits"
-	CodeUPCAppealOrder        = "upc.apl.order"
-	CodeUPCAppealCost         = "upc.apl.cost"
-	CodeDEInfringementLG      = "de.inf.lg"
-	CodeDEInfringementOLG     = "de.inf.olg"
-	CodeDEInfringementBGH     = "de.inf.bgh"
-	CodeDENullityBPatG        = "de.null.bpatg"
-	CodeDENullityBGH          = "de.null.bgh"
-	CodeEPAGrant              = "epa.grant.exa"
-	CodeEPAOpposition         = "epa.opp.opd"
-	CodeEPAOppositionAppeal   = "epa.opp.boa"
-	CodeDPMAOpposition        = "dpma.opp.dpma"
-	CodeDPMAAppealBPatG       = "dpma.appeal.bpatg"
-	CodeDPMAAppealBGH         = "dpma.appeal.bgh"
+	CodeUPCInfringement     = lp.CodeUPCInfringement
+	CodeUPCRevocation       = lp.CodeUPCRevocation
+	CodeUPCCounterclaim     = lp.CodeUPCCounterclaim
+	CodeUPCPreliminary      = lp.CodeUPCPreliminary
+	CodeUPCDamages          = lp.CodeUPCDamages
+	CodeUPCDiscovery        = lp.CodeUPCDiscovery
+	CodeUPCAppealMerits     = lp.CodeUPCAppealMerits
+	CodeUPCAppealOrder      = lp.CodeUPCAppealOrder
+	CodeUPCAppealCost       = lp.CodeUPCAppealCost
+	CodeDEInfringementLG    = lp.CodeDEInfringementLG
+	CodeDEInfringementOLG   = lp.CodeDEInfringementOLG
+	CodeDEInfringementBGH   = lp.CodeDEInfringementBGH
+	CodeDENullityBPatG      = lp.CodeDENullityBPatG
+	CodeDENullityBGH        = lp.CodeDENullityBGH
+	CodeEPAGrant            = lp.CodeEPAGrant
+	CodeEPAOpposition       = lp.CodeEPAOpposition
+	CodeEPAOppositionAppeal = lp.CodeEPAOppositionAppeal
+	CodeDPMAOpposition      = lp.CodeDPMAOpposition
+	CodeDPMAAppealBPatG     = lp.CodeDPMAAppealBPatG
+	CodeDPMAAppealBGH       = lp.CodeDPMAAppealBGH
 )
 
 // MapLitigationToFristenrechner returns the fristenrechner code +
 // condition flags implied by a (litigationCode, jurisdiction) pair.
-//
-// Inputs are case-sensitive — pass the canonical upper-snake form
-// (e.g. "INF", "UPC"). Unrecognised codes or genuinely ambiguous
-// combinations (APP+DE, ZPO_CIVIL+DE) return ok=false with a zero
-// fristenrechner code; callers should treat that as "no narrowing"
-// and leave the cascade wide-open rather than auto-pick.
-//
-// Condition flags are returned as a slice so callers can apply them
-// alongside the fristenrechner code (CCR+UPC → upc.inf.cfi + with_ccr,
-// AMD+UPC → upc.inf.cfi + with_amend). An empty slice means no flag
-// context applies.
+// Delegates to litigationplanner.MapLitigationToFristenrechner.
 func MapLitigationToFristenrechner(litigationCode, jurisdiction string) (fristenrechnerCode string, conditionFlags []string, ok bool) {
-	switch litigationCode {
-	case "INF":
-		switch jurisdiction {
-		case "UPC":
-			return CodeUPCInfringement, nil, true
-		case "DE":
-			return CodeDEInfringementLG, nil, true
-		}
-	case "REV":
-		switch jurisdiction {
-		case "UPC":
-			return CodeUPCRevocation, nil, true
-		case "DE":
-			return CodeDENullityBPatG, nil, true
-		}
-	case "CCR":
-		// Counterclaim revocation — UPC fold-in is structural (the
-		// counterclaim lives inside an upc.inf.cfi proceeding with the
-		// with_ccr flag). DE Nichtigkeit is conceptually the same
-		// adversarial-validity test, no separate flag.
-		switch jurisdiction {
-		case "UPC":
-			return CodeUPCInfringement, []string{"with_ccr"}, true
-		case "DE":
-			return CodeDENullityBPatG, nil, true
-		}
-	case "AMD":
-		// Amendment-application bundled into upc.inf.cfi via with_amend.
-		// No DE / EPA / DPMA analogue today.
-		if jurisdiction == "UPC" {
-			return CodeUPCInfringement, []string{"with_amend"}, true
-		}
-	case "APP":
-		// Appeal is ambiguous in DE (OLG vs BGH) and the project
-		// model doesn't carry the instance hint we'd need to
-		// disambiguate. UPC is unambiguous — upc.apl.merits covers
-		// the merits appeal track for inf/rev/ccr/damages.
-		if jurisdiction == "UPC" {
-			return CodeUPCAppealMerits, nil, true
-		}
-	case "APM":
-		// Preliminary injunction / urgency procedure — UPC-only
-		// concept in the fristenrechner taxonomy.
-		if jurisdiction == "UPC" {
-			return CodeUPCPreliminary, nil, true
-		}
-	case "OPP":
-		// Opposition — primarily EPA. DPMA has dpma.opp.dpma but it
-		// doesn't surface from the litigation vocabulary today.
-		if jurisdiction == "EPA" {
-			return CodeEPAOpposition, nil, true
-		}
-	}
-	return "", nil, false
+	return lp.MapLitigationToFristenrechner(litigationCode, jurisdiction)
 }
 
-// ResolveCounterclaimRouting handles the determinator's
-// upc.ccr.cfi illustrative-peer route: the code exists in the dropdown
-// for taxonomic completeness, but no rules are attached to it. When the
-// cascade resolves to upc.ccr.cfi we route the rule lookup back to
-// upc.inf.cfi with a default with_ccr=true flag — see
-// docs/design-proceeding-code-taxonomy-2026-05-18.md §0.3 sub-decision S1.
-//
-// `code` is the proceeding code the cascade resolved to. If it's
-// upc.ccr.cfi, the function returns (CodeUPCInfringement,
-// []string{"with_ccr"}, true). For any other code the function returns
-// (code, nil, false) and callers proceed with the code unchanged. The
-// boolean signals "routing was applied"; the caller can surface the hint
-// "Regeln liegen auf upc.inf.cfi (with_ccr=true); wir leiten Sie dorthin
-// weiter." in the UI.
+// ResolveCounterclaimRouting handles the determinator's upc.ccr.cfi
+// illustrative-peer route. Delegates to
+// litigationplanner.ResolveCounterclaimRouting.
 func ResolveCounterclaimRouting(code string) (effectiveCode string, defaultFlags []string, routed bool) {
-	if route, ok := SubTrackRoutings[code]; ok {
-		return route.ParentCode, route.DefaultFlags, true
-	}
-	return code, nil, false
+	return lp.ResolveCounterclaimRouting(code)
 }
 
-// SubTrackRouting describes a proceeding type that has no native rules
-// of its own and is normally rendered inside a parent proceeding's flow
-// with one or more condition flags enabled. The Procedure Roadmap
-// (verfahrensablauf) routes calc requests for these codes to the parent
-// proceeding + default flags, but preserves the user-picked code/name
-// in the response identity and surfaces a contextual note explaining
-// the framing — see m/paliad#58 and the design doc cited above.
-//
-// Adding a new sub-track is a data-only change here: extend
-// SubTrackRoutings with the (code, parent, flags, note) tuple and the
-// renderer picks it up automatically. The note copy lives in this file
-// because it's semantic to the routing, not UI chrome.
-type SubTrackRouting struct {
-	// Code is the user-picked proceeding code (e.g. "upc.ccr.cfi").
-	Code string
-	// ParentCode is the proceeding whose rules to use (e.g. "upc.inf.cfi").
-	ParentCode string
-	// DefaultFlags are merged into the user's flag set so the
-	// gated rules render. Order is preserved.
-	DefaultFlags []string
-	// NoteDE / NoteEN are the contextual banner above the timeline,
-	// explaining that the proceeding type is normally a sub-track.
-	// Plain text — the frontend renders them as a banner.
-	NoteDE string
-	NoteEN string
-}
-
-// SubTrackRoutings — single-source-of-truth registry. Today: just CCR.
-// The pattern generalises to other "sub-track" proceeding types (e.g.
-// R.30 application to amend the patent as a standalone roadmap, R.46
-// preliminary objection) once they have a proceeding-type code of their
-// own. New entries here are picked up by the spawn-as-standalone
-// renderer in FristenrechnerService.Calculate without further wiring.
-var SubTrackRoutings = map[string]SubTrackRouting{
-	CodeUPCCounterclaim: {
-		Code:         CodeUPCCounterclaim,
-		ParentCode:   CodeUPCInfringement,
-		DefaultFlags: []string{"with_ccr"},
-		NoteDE:       "Die Nichtigkeitswiderklage läuft normalerweise innerhalb eines UPC-Verletzungsverfahrens mit aktiver Nichtigkeitswiderklage. Diese Zeitleiste zeigt das Verletzungsverfahren mit gesetztem with_ccr-Flag.",
-		NoteEN:       "The counterclaim for revocation normally runs inside a UPC infringement action with the counterclaim flag set. This timeline shows the infringement action with with_ccr automatically enabled.",
-	},
-}
+// SubTrackRoutings exposes the sub-track routing registry. SubTrackRouting
+// is aliased in fristenrechner.go.
+var SubTrackRoutings = lp.SubTrackRoutings
 
 // LookupSubTrackRouting returns the sub-track routing for a proceeding
-// code, or (zero, false) if the code is not a sub-track. Used by the
-// fristenrechner Calculate path to spawn the parent flow with the sub-
-// track's default flags.
+// code, or (zero, false) if the code is not a sub-track. Delegates to
+// litigationplanner.LookupSubTrackRouting.
 func LookupSubTrackRouting(code string) (SubTrackRouting, bool) {
-	r, ok := SubTrackRoutings[code]
-	return r, ok
+	return lp.LookupSubTrackRouting(code)
 }

internal/services/projection_anchor_test.go

@@ -97,6 +97,58 @@ func TestApplyLookaheadCap_NoCapWhenUnderLimit(t *testing.T) {
 	}
 }
 
+// t-paliad-289: conditional rows (Status="conditional", Date=nil) must
+// pass through applyLookaheadCap untouched — they're not "future
+// predicted" rows by either Status or Date semantics, so they belong in
+// the pass-through bucket alongside court_set / undated rows. The cap
+// must NOT consume one of its slots for a conditional row, and the
+// row must survive even when projTotal exceeds the cap.
+func TestApplyLookaheadCap_ConditionalRowsPassThrough(t *testing.T) {
+	may1 := time.Date(2026, 5, 1, 0, 0, 0, 0, time.UTC)
+	jun1 := time.Date(2026, 6, 1, 0, 0, 0, 0, time.UTC)
+	jul1 := time.Date(2026, 7, 1, 0, 0, 0, 0, time.UTC)
+
+	rows := []TimelineEvent{
+		// Three predicted future — cap=2 means the third drops.
+		{Kind: "projected", Status: "predicted", Date: &may1, RuleCode: "f1", Title: "F1"},
+		{Kind: "projected", Status: "predicted", Date: &jun1, RuleCode: "f2", Title: "F2"},
+		{Kind: "projected", Status: "predicted", Date: &jul1, RuleCode: "f3", Title: "F3"},
+		// Two conditional — must survive uncapped, must NOT count
+		// against projTotal / projShown.
+		{Kind: "projected", Status: "conditional", IsConditional: true, RuleCode: "c1", Title: "C1",
+			DependsOnRuleCode: "p1", DependsOnRuleName: "Parent 1"},
+		{Kind: "projected", Status: "conditional", IsConditional: true, RuleCode: "c2", Title: "C2",
+			DependsOnRuleCode: "p2", DependsOnRuleName: "Parent 2"},
+	}
+
+	kept, total, shown, overdue := applyLookaheadCap(rows, 2)
+	if total != 3 {
+		t.Errorf("ProjectedTotal = %d, want 3 (conditionals must not count)", total)
+	}
+	if shown != 2 {
+		t.Errorf("ProjectedShown = %d, want 2", shown)
+	}
+	if overdue != 0 {
+		t.Errorf("PredictedOverdue = %d, want 0", overdue)
+	}
+	// 2 predicted (capped) + 2 conditional pass-through = 4 rows.
+	if len(kept) != 4 {
+		t.Errorf("kept rows = %d, want 4", len(kept))
+	}
+	keptTitles := map[string]bool{}
+	for _, r := range kept {
+		keptTitles[r.Title] = true
+	}
+	for _, want := range []string{"F1", "F2", "C1", "C2"} {
+		if !keptTitles[want] {
+			t.Errorf("expected kept row %q missing", want)
+		}
+	}
+	if keptTitles["F3"] {
+		t.Errorf("F3 should have been dropped (cap=2)")
+	}
+}
+
 func TestRuleAnchorKind(t *testing.T) {
 	hearing := "hearing"
 	decision := "decision"

internal/services/projection_service.go

@@ -147,6 +147,17 @@ type TimelineEvent struct {
 	// checkbox). At parent-node levels, rows with BubbleUp=true survive
 	// the levelPolicy kind/status filter unconditionally.
 	BubbleUp bool `json:"bubble_up,omitempty"`
+
+	// IsConditional marks projected rows whose anchor is uncertain —
+	// the projection layer mirrors UIDeadline.IsConditional from the
+	// fristenrechner so the SmartTimeline can render an "abhängig von
+	// <parent>" chip in place of the date column. When true, Date is
+	// nil and DependsOnRuleCode / DependsOnRuleName carry the parent
+	// reference (already populated by annotateDependsOn for projected
+	// rows; for conditional rows we additionally fall back to the
+	// UIDeadline-supplied ParentRule* when the parent has no
+	// computed date). Status is set to "conditional". (t-paliad-289)
+	IsConditional bool `json:"is_conditional,omitempty"`
 }
 
 // LaneInfo describes one column in the parent-node aggregated view.
@@ -933,12 +944,13 @@ func (s *ProjectionService) computeProjections(
 			Title:             ruleDisplayName(rule, ui, lang(opts.Lang)),
 			RuleCode:          ui.Code,
 			DeadlineRuleParty: ui.Party,
+			IsConditional:     ui.IsConditional,
 		}
 		idCopy := ruleID
 		ev.DeadlineRuleID = &idCopy
 
 		// Date — UIDeadline.DueDate is YYYY-MM-DD when set, "" for
-		// court-set rules whose date isn't bound yet.
+		// court-set / conditional rules whose date isn't bound yet.
 		if ui.DueDate != "" {
 			if t, perr := time.Parse("2006-01-02", ui.DueDate); perr == nil {
 				dt := time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.UTC)
@@ -946,7 +958,38 @@ func (s *ProjectionService) computeProjections(
 			}
 		}
 
+		// Conditional rows from the fristenrechner (t-paliad-289):
+		// pre-stamp the dependency reference here so the row carries
+		// the "abhängig von <parent>" payload even when the parent has
+		// no computed date for annotateDependsOn to pick up later.
+		// annotateDependsOn won't overwrite a non-empty DependsOnRuleCode,
+		// and the parent's actual date (if anchored elsewhere) still
+		// flows into DependsOnDate via the actuals-first preference.
+		if ui.IsConditional && ui.ParentRuleCode != "" {
+			ev.DependsOnRuleCode = ui.ParentRuleCode
+			switch lang(opts.Lang) {
+			case "en":
+				if ui.ParentRuleNameEN != "" {
+					ev.DependsOnRuleName = ui.ParentRuleNameEN
+				} else {
+					ev.DependsOnRuleName = ui.ParentRuleName
+				}
+			default:
+				ev.DependsOnRuleName = ui.ParentRuleName
+			}
+		}
+
 		switch {
+		case ui.IsConditional:
+			// Anchor uncertain (court-set ancestor without override,
+			// backward-anchor without forward date, or optional event
+			// not recorded). Surface as conditional so the frontend
+			// renders "abhängig von <parent>" in place of a date.
+			// Conditional rows must not carry a date even if the
+			// calculator left one — clear it to match the wire contract.
+			// (t-paliad-289)
+			ev.Date = nil
+			ev.Status = "conditional"
 		case ui.IsCourtSet && ev.Date == nil:
 			// Pure court-set rule — date is bound by the court at
 			// hearing/decision time. Surface as undated court_set.

internal/services/rule_editor_service.go

@@ -13,6 +13,7 @@ import (
 	"github.com/jmoiron/sqlx"
 
 	"mgit.msbls.de/m/paliad/internal/models"
+	lp "mgit.msbls.de/m/paliad/pkg/litigationplanner"
 )
 
 // RuleEditorService owns the admin-only rule lifecycle for Phase 3
@@ -148,6 +149,16 @@ func (s *RuleEditorService) Create(ctx context.Context, input CreateRuleInput, r
 	if strings.TrimSpace(input.Priority) == "" {
 		input.Priority = "mandatory"
 	}
+	// Slice B3 (m/paliad#124 §18.3, mig 135): canonical four-value
+	// primary_party vocab. Pre-validate so the user gets a
+	// user-friendly error before the DB CHECK fires with the raw
+	// constraint-violation message.
+	if input.PrimaryParty != nil && !lp.IsValidPrimaryParty(*input.PrimaryParty) {
+		return nil, fmt.Errorf(
+			"%w: primary_party=%q is not one of %v",
+			ErrInvalidInput, *input.PrimaryParty, lp.PrimaryParties,
+		)
+	}
 	if err := s.validateSpawnNoCycle(ctx, nil, input.SpawnProceedingTypeID, input.ProceedingTypeID); err != nil {
 		return nil, err
 	}
@@ -220,6 +231,19 @@ func (s *RuleEditorService) UpdateDraft(ctx context.Context, id uuid.UUID, patch
 			ErrInvalidLifecycleState, id, current.LifecycleState)
 	}
 
+	// Slice B3 (m/paliad#124 §18.3, mig 135): pre-validate the
+	// patch's primary_party so the user gets a user-friendly error
+	// before the DB CHECK fires with the raw constraint-violation
+	// message. Patch field is *string — nil means "don't change",
+	// dereferenced empty string means "set to NULL" (handled below
+	// in buildPatchSets).
+	if patch.PrimaryParty != nil && !lp.IsValidPrimaryParty(*patch.PrimaryParty) {
+		return nil, fmt.Errorf(
+			"%w: primary_party=%q is not one of %v",
+			ErrInvalidInput, *patch.PrimaryParty, lp.PrimaryParties,
+		)
+	}
+
 	// Spawn cycle guard: if the patch sets spawn_proceeding_type_id,
 	// validate against the global graph BEFORE the UPDATE so we can
 	// surface the cycle clearly instead of relying on a runtime
@@ -604,92 +628,6 @@ func (s *RuleEditorService) getByID(ctx context.Context, id uuid.UUID) (*models.
 	return &r, nil
 }
 
-// ExportMigrationsSince returns a SQL blob containing one UPDATE / INSERT
-// per audited rule change after the given audit row id. Used by the
-// admin "export changes to a migration file" flow (Q-H-5: pure SQL
-// format). Returns SQL + count + the latest audit id seen so the
-// caller can pass it as ?since= on the next call.
-//
-// v1 generates one UPDATE per audit row using the after_json snapshot.
-// Slice 11b will polish the output (re-order so foreign-key edges
-// resolve, collapse consecutive UPDATEs on the same row, format the
-// header comment with author + reason). v1 emits one statement per
-// audit row in chronological order — sufficient for hand-review.
-type ExportResult struct {
-	MigrationSQL  string `json:"migration_sql"`
-	Count         int    `json:"count"`
-	LatestAuditID string `json:"latest_audit_id"`
-}
-
-func (s *RuleEditorService) ExportMigrationsSince(ctx context.Context, sinceAuditID string) (*ExportResult, error) {
-	type auditRow struct {
-		ID        uuid.UUID       `db:"id"`
-		RuleID    uuid.UUID       `db:"rule_id"`
-		ChangedAt time.Time       `db:"changed_at"`
-		Action    string          `db:"action"`
-		AfterJSON json.RawMessage `db:"after_json"`
-		Reason    string          `db:"reason"`
-	}
-	var rows []auditRow
-	q := `SELECT id, rule_id, changed_at, action, after_json, reason
-	        FROM paliad.deadline_rule_audit
-	       WHERE migration_exported = false`
-	args := []any{}
-	if sinceAuditID != "" {
-		sid, err := uuid.Parse(sinceAuditID)
-		if err != nil {
-			return nil, fmt.Errorf("%w: invalid since= uuid", ErrInvalidInput)
-		}
-		q += ` AND changed_at >= (SELECT changed_at FROM paliad.deadline_rule_audit WHERE id = $1)`
-		args = append(args, sid)
-	}
-	q += ` ORDER BY changed_at ASC`
-	if err := s.db.SelectContext(ctx, &rows, q, args...); err != nil {
-		return nil, fmt.Errorf("list audit since: %w", err)
-	}
-
-	var sb strings.Builder
-	sb.WriteString("-- Auto-generated rule-editor migration export.\n")
-	sb.WriteString("-- Generated at: " + time.Now().UTC().Format(time.RFC3339) + "\n")
-	sb.WriteString("-- Rows: " + fmt.Sprintf("%d", len(rows)) + "\n\n")
-	sb.WriteString("SELECT set_config('paliad.audit_reason',\n")
-	sb.WriteString("    'rule-editor export: replay of " + fmt.Sprintf("%d", len(rows)) + " edits', true);\n\n")
-
-	latest := ""
-	for _, r := range rows {
-		sb.WriteString("-- audit " + r.ID.String() + " (" + r.Action + " " + r.ChangedAt.Format(time.RFC3339) + "): " + sqlEscape(r.Reason) + "\n")
-		switch r.Action {
-		case "create", "update":
-			if len(r.AfterJSON) == 0 {
-				sb.WriteString("-- (no after_json — skipped)\n\n")
-				continue
-			}
-			sb.WriteString("INSERT INTO paliad.deadline_rules\n")
-			sb.WriteString("    SELECT (jsonb_populate_record(NULL::paliad.deadline_rules, '")
-			sb.WriteString(sqlEscape(string(r.AfterJSON)))
-			sb.WriteString("'::jsonb)).*\n")
-			sb.WriteString("ON CONFLICT (id) DO UPDATE SET name = EXCLUDED.name, name_en = EXCLUDED.name_en,\n")
-			sb.WriteString("    duration_value = EXCLUDED.duration_value, duration_unit = EXCLUDED.duration_unit,\n")
-			sb.WriteString("    timing = EXCLUDED.timing, priority = EXCLUDED.priority,\n")
-			sb.WriteString("    is_court_set = EXCLUDED.is_court_set,\n")
-			sb.WriteString("    condition_expr = EXCLUDED.condition_expr,\n")
-			sb.WriteString("    lifecycle_state = EXCLUDED.lifecycle_state,\n")
-			sb.WriteString("    updated_at = now();\n\n")
-		case "delete", "archive":
-			sb.WriteString("UPDATE paliad.deadline_rules SET lifecycle_state='archived', updated_at=now() WHERE id='")
-			sb.WriteString(r.RuleID.String())
-			sb.WriteString("';\n\n")
-		}
-		latest = r.ID.String()
-	}
-
-	return &ExportResult{
-		MigrationSQL:  sb.String(),
-		Count:         len(rows),
-		LatestAuditID: latest,
-	}, nil
-}
-
 // =============================================================================
 // Internal helpers
 // =============================================================================
@@ -814,6 +752,3 @@ func nullableJSON(b json.RawMessage) any {
 	return []byte(b)
 }
 
-func sqlEscape(s string) string {
-	return strings.ReplaceAll(s, "'", "''")
-}

internal/services/scenario_service.go

@@ -0,0 +1,347 @@
+package services
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/jmoiron/sqlx"
+
+	"mgit.msbls.de/m/paliad/internal/models"
+	lp "mgit.msbls.de/m/paliad/pkg/litigationplanner"
+)
+
+// ScenarioService reads + writes paliad.scenarios — named compositions
+// of existing proceedings + flags + per-card choices + anchor dates,
+// switchable per project or saved as abstract templates on
+// /tools/verfahrensablauf. Slice D, m/paliad#124 §5, mig 145.
+//
+// Visibility:
+//   - Project-scoped scenarios (project_id NOT NULL): require
+//     can_see_project on the bound project (mirrors
+//     EventChoiceService.requireProjectVisible).
+//   - Abstract scenarios (project_id IS NULL): owner-only. Only
+//     created_by can read / mutate.
+//
+// The service applies these checks in application code; paliad.scenarios
+// also has RLS policies (mig 145) as defense-in-depth for callers that
+// connect through Supabase Auth's auth.uid() session.
+type ScenarioService struct {
+	db       *sqlx.DB
+	projects *ProjectService
+	rules    *DeadlineRuleService
+}
+
+// NewScenarioService wires the service to its dependencies.
+func NewScenarioService(db *sqlx.DB, projects *ProjectService, rules *DeadlineRuleService) *ScenarioService {
+	return &ScenarioService{db: db, projects: projects, rules: rules}
+}
+
+// Sentinel errors. Mirrors EventChoiceService + the lp package errors
+// so handlers can map cleanly to HTTP statuses.
+var (
+	ErrScenarioNotVisible = errors.New("scenario not visible to caller")
+)
+
+// CreateScenarioInput is the payload for POST /api/scenarios. project_id
+// nil = abstract scenario (saved Verfahrensablauf template).
+type CreateScenarioInput struct {
+	ProjectID   *uuid.UUID      `json:"project_id,omitempty"`
+	Name        string          `json:"name"`
+	Description *string         `json:"description,omitempty"`
+	Spec        json.RawMessage `json:"spec"`
+}
+
+// Create inserts a new scenario after validating the spec.
+func (s *ScenarioService) Create(ctx context.Context, userID uuid.UUID, input CreateScenarioInput) (*lp.Scenario, error) {
+	if input.Name == "" {
+		return nil, fmt.Errorf("%w: name required", ErrInvalidInput)
+	}
+	if err := s.validateSpec(ctx, input.Spec); err != nil {
+		return nil, err
+	}
+	if input.ProjectID != nil {
+		if err := s.requireProjectVisible(ctx, userID, *input.ProjectID); err != nil {
+			return nil, err
+		}
+	}
+
+	var out lp.Scenario
+	err := s.db.GetContext(ctx, &out,
+		`INSERT INTO paliad.scenarios (project_id, name, description, spec, created_by)
+		      VALUES ($1, $2, $3, $4, $5)
+		   RETURNING id, project_id, name, description, spec, created_by,
+		             created_at, updated_at`,
+		input.ProjectID, input.Name, input.Description,
+		[]byte(input.Spec), userID)
+	if err != nil {
+		return nil, fmt.Errorf("create scenario: %w", err)
+	}
+	return &out, nil
+}
+
+// Get returns one scenario by id after a visibility check.
+func (s *ScenarioService) Get(ctx context.Context, userID, scenarioID uuid.UUID) (*lp.Scenario, error) {
+	var sc lp.Scenario
+	err := s.db.GetContext(ctx, &sc,
+		`SELECT id, project_id, name, description, spec, created_by,
+		        created_at, updated_at
+		   FROM paliad.scenarios
+		  WHERE id = $1`, scenarioID)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, lp.ErrUnknownScenario
+	}
+	if err != nil {
+		return nil, fmt.Errorf("get scenario: %w", err)
+	}
+	if err := s.requireVisible(ctx, userID, &sc); err != nil {
+		return nil, err
+	}
+	return &sc, nil
+}
+
+// ListForProject returns scenarios attached to one project, ordered by
+// created_at desc.
+func (s *ScenarioService) ListForProject(ctx context.Context, userID, projectID uuid.UUID) ([]lp.Scenario, error) {
+	if err := s.requireProjectVisible(ctx, userID, projectID); err != nil {
+		return nil, err
+	}
+	out := []lp.Scenario{}
+	err := s.db.SelectContext(ctx, &out,
+		`SELECT id, project_id, name, description, spec, created_by,
+		        created_at, updated_at
+		   FROM paliad.scenarios
+		  WHERE project_id = $1
+		  ORDER BY created_at DESC`, projectID)
+	if err != nil {
+		return nil, fmt.Errorf("list scenarios for project: %w", err)
+	}
+	return out, nil
+}
+
+// ListAbstractForUser returns the calling user's abstract scenarios.
+func (s *ScenarioService) ListAbstractForUser(ctx context.Context, userID uuid.UUID) ([]lp.Scenario, error) {
+	out := []lp.Scenario{}
+	err := s.db.SelectContext(ctx, &out,
+		`SELECT id, project_id, name, description, spec, created_by,
+		        created_at, updated_at
+		   FROM paliad.scenarios
+		  WHERE project_id IS NULL AND created_by = $1
+		  ORDER BY created_at DESC`, userID)
+	if err != nil {
+		return nil, fmt.Errorf("list abstract scenarios: %w", err)
+	}
+	return out, nil
+}
+
+// PatchScenarioInput is the payload for PATCH /api/scenarios/{id}. Any
+// field nil means "don't change". Spec replacement re-runs validation.
+type PatchScenarioInput struct {
+	Name        *string         `json:"name,omitempty"`
+	Description *string         `json:"description,omitempty"`
+	Spec        json.RawMessage `json:"spec,omitempty"`
+}
+
+// Patch updates one or more scenario fields. Visibility check fires
+// first (the caller must already see the scenario to mutate it).
+func (s *ScenarioService) Patch(ctx context.Context, userID, scenarioID uuid.UUID, input PatchScenarioInput) (*lp.Scenario, error) {
+	current, err := s.Get(ctx, userID, scenarioID)
+	if err != nil {
+		return nil, err
+	}
+	if len(input.Spec) > 0 {
+		if err := s.validateSpec(ctx, input.Spec); err != nil {
+			return nil, err
+		}
+	}
+
+	sets := []string{}
+	args := []any{}
+	add := func(clause string, val any) {
+		args = append(args, val)
+		sets = append(sets, fmt.Sprintf(clause, len(args)))
+	}
+	if input.Name != nil {
+		add("name = $%d", *input.Name)
+	}
+	if input.Description != nil {
+		add("description = $%d", *input.Description)
+	}
+	if len(input.Spec) > 0 {
+		add("spec = $%d", []byte(input.Spec))
+	}
+	if len(sets) == 0 {
+		return current, nil
+	}
+	args = append(args, scenarioID)
+	query := fmt.Sprintf(`UPDATE paliad.scenarios SET %s
+	    WHERE id = $%d
+	RETURNING id, project_id, name, description, spec, created_by,
+	          created_at, updated_at`, joinSets(sets), len(args))
+	var out lp.Scenario
+	if err := s.db.GetContext(ctx, &out, query, args...); err != nil {
+		return nil, fmt.Errorf("patch scenario: %w", err)
+	}
+	return &out, nil
+}
+
+// SetActive points a project at one of its scenarios. Pass nil to
+// clear (revert to ad-hoc per-card choice state).
+func (s *ScenarioService) SetActive(ctx context.Context, userID, projectID uuid.UUID, scenarioID *uuid.UUID) error {
+	if err := s.requireProjectVisible(ctx, userID, projectID); err != nil {
+		return err
+	}
+	if scenarioID != nil {
+		// Ensure scenario exists + belongs to this project. A scenario
+		// from a different project (or an abstract one) can't be the
+		// active scenario on this project.
+		sc, err := s.Get(ctx, userID, *scenarioID)
+		if err != nil {
+			return err
+		}
+		if sc.ProjectID == nil || *sc.ProjectID != projectID {
+			return fmt.Errorf("%w: scenario %s is not attached to project %s",
+				ErrInvalidInput, *scenarioID, projectID)
+		}
+	}
+	_, err := s.db.ExecContext(ctx,
+		`UPDATE paliad.projects SET active_scenario_id = $1 WHERE id = $2`,
+		scenarioID, projectID)
+	if err != nil {
+		return fmt.Errorf("set active scenario: %w", err)
+	}
+	return nil
+}
+
+// Delete removes a scenario. Project's active_scenario_id is cleared
+// automatically via the FK's ON DELETE SET NULL.
+func (s *ScenarioService) Delete(ctx context.Context, userID, scenarioID uuid.UUID) error {
+	// Visibility check via Get — also resolves the existence question.
+	if _, err := s.Get(ctx, userID, scenarioID); err != nil {
+		return err
+	}
+	if _, err := s.db.ExecContext(ctx,
+		`DELETE FROM paliad.scenarios WHERE id = $1`, scenarioID); err != nil {
+		return fmt.Errorf("delete scenario: %w", err)
+	}
+	return nil
+}
+
+// requireVisible enforces the per-row visibility rule:
+//   - project_id NOT NULL → caller must see the project
+//   - project_id IS NULL  → caller must be the row's created_by
+func (s *ScenarioService) requireVisible(ctx context.Context, userID uuid.UUID, sc *lp.Scenario) error {
+	if sc.ProjectID != nil {
+		return s.requireProjectVisible(ctx, userID, *sc.ProjectID)
+	}
+	if sc.CreatedBy == nil || *sc.CreatedBy != userID {
+		return ErrScenarioNotVisible
+	}
+	return nil
+}
+
+// requireProjectVisible mirrors EventChoiceService.requireProjectVisible
+// (visibility via can_see_project). Cheap re-implementation — keeps the
+// call-graph small + avoids a cross-service dep.
+func (s *ScenarioService) requireProjectVisible(ctx context.Context, userID, projectID uuid.UUID) error {
+	var visible bool
+	err := s.db.GetContext(ctx, &visible,
+		`SELECT EXISTS (
+		    SELECT 1 FROM paliad.users u
+		     WHERE u.id = $1 AND u.global_role = 'global_admin'
+		) OR EXISTS (
+		    SELECT 1 FROM paliad.projects p
+		     JOIN paliad.project_teams pt ON pt.project_id = ANY(
+		            string_to_array(p.path, '.')::uuid[]
+		          )
+		    WHERE p.id = $2 AND pt.user_id = $1
+		)`, userID, projectID)
+	if err != nil {
+		return fmt.Errorf("check project visibility: %w", err)
+	}
+	if !visible {
+		return ErrScenarioNotVisible
+	}
+	return nil
+}
+
+// validateSpec checks the jsonb spec is well-formed, has the right
+// version, and that every referenced proceeding code + submission code
+// resolves to an active row in the live catalog. Surfaces friendly
+// errors wrapping ErrInvalidInput so the handler can map to a 400.
+func (s *ScenarioService) validateSpec(ctx context.Context, raw json.RawMessage) error {
+	if len(raw) == 0 {
+		return fmt.Errorf("%w: spec is required", ErrInvalidInput)
+	}
+	parsed, err := lp.ParseSpec(lp.NullableJSON(raw))
+	if err != nil {
+		return fmt.Errorf("%w: %v", ErrInvalidInput, err)
+	}
+	if _, err := parsed.PrimaryProceeding(); err != nil {
+		return fmt.Errorf("%w: %v", ErrInvalidInput, err)
+	}
+	if parsed.BaseTriggerDate != "" {
+		if _, err := time.Parse("2006-01-02", parsed.BaseTriggerDate); err != nil {
+			return fmt.Errorf("%w: base_trigger_date %q is not YYYY-MM-DD", ErrInvalidInput, parsed.BaseTriggerDate)
+		}
+	}
+	for i, p := range parsed.Proceedings {
+		if p.Code == "" {
+			return fmt.Errorf("%w: proceedings[%d].code is empty", ErrInvalidInput, i)
+		}
+		if p.Role != lp.ScenarioRolePrimary && p.Role != lp.ScenarioRolePeer {
+			return fmt.Errorf("%w: proceedings[%d].role=%q must be 'primary' or 'peer'",
+				ErrInvalidInput, i, p.Role)
+		}
+		if p.AppealTarget != "" && !lp.IsValidAppealTarget(p.AppealTarget) {
+			return fmt.Errorf("%w: proceedings[%d].appeal_target=%q not in %v",
+				ErrInvalidInput, i, p.AppealTarget, lp.AppealTargets)
+		}
+		if p.TriggerDateOverride != "" {
+			if _, err := time.Parse("2006-01-02", p.TriggerDateOverride); err != nil {
+				return fmt.Errorf("%w: proceedings[%d].trigger_date_override %q is not YYYY-MM-DD",
+					ErrInvalidInput, i, p.TriggerDateOverride)
+			}
+		}
+		for code, dateStr := range p.AnchorOverrides {
+			if _, err := time.Parse("2006-01-02", dateStr); err != nil {
+				return fmt.Errorf("%w: proceedings[%d].anchor_overrides[%q]=%q is not YYYY-MM-DD",
+					ErrInvalidInput, i, code, dateStr)
+			}
+		}
+		// Resolve code against active proceedings.
+		var exists bool
+		if err := s.db.GetContext(ctx, &exists,
+			`SELECT EXISTS(SELECT 1 FROM paliad.proceeding_types
+			               WHERE code = $1 AND is_active = true)`,
+			p.Code); err != nil {
+			return fmt.Errorf("validate spec proceedings[%d]: %w", i, err)
+		}
+		if !exists {
+			return fmt.Errorf("%w: proceedings[%d].code=%q is not an active proceeding_type",
+				ErrInvalidInput, i, p.Code)
+		}
+	}
+	return nil
+}
+
+// joinSets joins SET clauses with ", ". Tiny utility, kept here to
+// avoid cross-package strings.Join indirection.
+func joinSets(sets []string) string {
+	out := ""
+	for i, s := range sets {
+		if i > 0 {
+			out += ", "
+		}
+		out += s
+	}
+	return out
+}
+
+// Suppress unused-import diagnostic when models isn't referenced
+// (kept for future shape-evolution; canonical scenario row lives in lp).
+var _ = models.NullableJSON(nil)

internal/services/submission_draft_language_test.go

@@ -0,0 +1,79 @@
+package services
+
+// Regression tests for the per-draft language column (t-paliad-276).
+// The draft's `language` value drives both the placeholder-bag
+// language pick (`procedural_event.name` → name_de vs name_en) and the
+// template-variant lookup (`{code}.{lang}.docx` fallback chain). These
+// tests pin the pure-function pieces — Build wiring needs DB fixtures
+// and lives in the handler-layer smoke path.
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/google/uuid"
+
+	"mgit.msbls.de/m/paliad/internal/models"
+)
+
+func TestNormalizeDraftLanguage(t *testing.T) {
+	t.Parallel()
+	cases := []struct {
+		in   string
+		want string
+	}{
+		{"de", "de"},
+		{"DE", "de"},
+		{" de ", "de"},
+		{"en", "en"},
+		{"EN", "en"},
+		{"  en  ", "en"},
+		{"fr", "de"},  // unknown collapses to de (the CHECK-allowed default)
+		{"", "de"},
+		{"english", "de"}, // strict — only the canonical two-letter code is accepted
+	}
+	for _, c := range cases {
+		if got := normalizeDraftLanguage(c.in); got != c.want {
+			t.Errorf("normalizeDraftLanguage(%q) = %q, want %q", c.in, got, c.want)
+		}
+	}
+}
+
+// The placeholder bag picks the language-matched value for the
+// canonical (procedural_event.name) and legacy (rule.name) keys based
+// on the lang argument. This pins the wiring used by Build when a
+// draft's language overrides the user's UI lang (t-paliad-276).
+func TestAddRuleVars_LanguageSelectsMatchedName(t *testing.T) {
+	t.Parallel()
+	code := "de.inf.lg.erwidg"
+	rule := &models.DeadlineRule{
+		ID:             uuid.New(),
+		SubmissionCode: &code,
+		Name:           "Klageerwiderung",
+		NameEN:         "Statement of Defence",
+	}
+	for _, lang := range []string{"de", "en"} {
+		bag := PlaceholderMap{}
+		addRuleVars(bag, rule, lang)
+		want := rule.Name
+		if strings.EqualFold(lang, "en") {
+			want = rule.NameEN
+		}
+		if got := bag["procedural_event.name"]; got != want {
+			t.Errorf("lang=%s: procedural_event.name = %q, want %q", lang, got, want)
+		}
+		if got := bag["rule.name"]; got != want {
+			t.Errorf("lang=%s: rule.name = %q, want %q (legacy alias must mirror canonical)", lang, got, want)
+		}
+		// The explicit *_de / *_en keys never change — both are always
+		// emitted so a template can pin one regardless of the draft's
+		// language. Regression guard against accidentally
+		// language-gating the explicit variants.
+		if bag["procedural_event.name_de"] != rule.Name {
+			t.Errorf("lang=%s: procedural_event.name_de = %q, want %q", lang, bag["procedural_event.name_de"], rule.Name)
+		}
+		if bag["procedural_event.name_en"] != rule.NameEN {
+			t.Errorf("lang=%s: procedural_event.name_en = %q, want %q", lang, bag["procedural_event.name_en"], rule.NameEN)
+		}
+	}
+}

internal/services/submission_draft_service.go

@@ -30,6 +30,7 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/jmoiron/sqlx"
+	"github.com/lib/pq"
 
 	"mgit.msbls.de/m/paliad/internal/models"
 )
@@ -42,20 +43,33 @@ import (
 // parties / deadline state to resolve). All callers must check for nil
 // before treating it as a uuid.
 type SubmissionDraft struct {
-	ID              uuid.UUID  `db:"id"               json:"id"`
-	ProjectID       *uuid.UUID `db:"project_id"       json:"project_id,omitempty"`
-	SubmissionCode  string     `db:"submission_code"  json:"submission_code"`
-	UserID          uuid.UUID  `db:"user_id"          json:"user_id"`
-	Name            string     `db:"name"             json:"name"`
-	VariablesRaw    []byte     `db:"variables"        json:"-"`
-	LastExportedAt  *time.Time `db:"last_exported_at" json:"last_exported_at,omitempty"`
-	LastExportedSHA *string    `db:"last_exported_sha" json:"last_exported_sha,omitempty"`
-	CreatedAt       time.Time  `db:"created_at"       json:"created_at"`
-	UpdatedAt       time.Time  `db:"updated_at"       json:"updated_at"`
+	ID             uuid.UUID  `db:"id"                  json:"id"`
+	ProjectID      *uuid.UUID `db:"project_id"          json:"project_id,omitempty"`
+	SubmissionCode string     `db:"submission_code"     json:"submission_code"`
+	UserID         uuid.UUID  `db:"user_id"             json:"user_id"`
+	Name           string     `db:"name"                json:"name"`
+	// Language is the output language for the generated .docx — 'de' or
+	// 'en'. Drives the template-variant lookup ({code}.{lang}.docx
+	// fallback chain) and language-aware variable resolution
+	// ({{procedural_event.name}} → name_de or name_en). t-paliad-276.
+	Language           string         `db:"language"            json:"language"`
+	VariablesRaw       []byte         `db:"variables"           json:"-"`
+	SelectedPartiesRaw pq.StringArray `db:"selected_parties"    json:"-"`
+	LastExportedAt     *time.Time     `db:"last_exported_at"    json:"last_exported_at,omitempty"`
+	LastExportedSHA    *string        `db:"last_exported_sha"   json:"last_exported_sha,omitempty"`
+	LastImportedAt     *time.Time     `db:"last_imported_at"    json:"last_imported_at,omitempty"`
+	CreatedAt          time.Time      `db:"created_at"          json:"created_at"`
+	UpdatedAt          time.Time      `db:"updated_at"          json:"updated_at"`
 
 	// Variables is the decoded overrides map; populated on read by the
 	// service so callers don't have to unmarshal manually.
 	Variables PlaceholderMap `json:"variables"`
+
+	// SelectedParties is the parsed uuid form of SelectedPartiesRaw —
+	// populated on read by decodeSelectedParties(). An empty slice keeps
+	// the backward-compat "include every party" behaviour; a non-empty
+	// slice restricts the variable bag to the listed paliad.parties rows.
+	SelectedParties []uuid.UUID `json:"selected_parties"`
 }
 
 // SubmissionDraftService handles CRUD on submission_drafts and exposes
@@ -94,6 +108,15 @@ type DraftPatch struct {
 	Name      *string
 	Variables *PlaceholderMap
 	ProjectID **uuid.UUID
+
+	// SelectedParties: nil = no change. A non-nil pointer always writes
+	// the column; pass *p = nil or an empty slice to reset to "include
+	// every party on the project" (the backward-compat default).
+	SelectedParties *[]uuid.UUID
+
+	// Language sets the output language. Valid values: "de", "en".
+	// Anything else returns ErrInvalidInput. t-paliad-276.
+	Language *string
 }
 
 // ErrSubmissionDraftNotFound is the sentinel for "no draft with that id
@@ -106,8 +129,10 @@ var ErrSubmissionDraftNameTaken = errors.New("submission draft: name already tak
 
 // draftColumns is the canonical select list — kept in one place so
 // every fetch stays in sync.
-const draftColumns = `id, project_id, submission_code, user_id, name,
-                      variables, last_exported_at, last_exported_sha,
+const draftColumns = `id, project_id, submission_code, user_id, name, language,
+                      variables, selected_parties,
+                      last_exported_at, last_exported_sha,
+                      last_imported_at,
                       created_at, updated_at`
 
 // List returns every draft for (project, submission_code, user)
@@ -127,7 +152,7 @@ func (s *SubmissionDraftService) List(ctx context.Context, userID, projectID uui
 		return nil, fmt.Errorf("list submission drafts: %w", err)
 	}
 	for i := range rows {
-		if err := rows[i].decodeVariables(); err != nil {
+		if err := rows[i].decode(); err != nil {
 			return nil, err
 		}
 	}
@@ -157,8 +182,9 @@ type DraftWithProject struct {
 func (s *SubmissionDraftService) ListAllForUser(ctx context.Context, userID uuid.UUID) ([]DraftWithProject, error) {
 	var rows []DraftWithProject
 	err := s.db.SelectContext(ctx, &rows,
-		`SELECT d.id, d.project_id, d.submission_code, d.user_id, d.name,
-		        d.variables, d.last_exported_at, d.last_exported_sha,
+		`SELECT d.id, d.project_id, d.submission_code, d.user_id, d.name, d.language,
+		        d.variables, d.selected_parties,
+		        d.last_exported_at, d.last_exported_sha, d.last_imported_at,
 		        d.created_at, d.updated_at,
 		        p.title     AS project_title,
 		        p.reference AS project_reference
@@ -175,7 +201,7 @@ func (s *SubmissionDraftService) ListAllForUser(ctx context.Context, userID uuid
 		return nil, fmt.Errorf("list all submission drafts for user: %w", err)
 	}
 	for i := range rows {
-		if err := rows[i].decodeVariables(); err != nil {
+		if err := rows[i].decode(); err != nil {
 			return nil, err
 		}
 	}
@@ -213,7 +239,7 @@ func (s *SubmissionDraftService) Get(ctx context.Context, userID, draftID uuid.U
 			return nil, err
 		}
 	}
-	if err := d.decodeVariables(); err != nil {
+	if err := d.decode(); err != nil {
 		return nil, err
 	}
 	return &d, nil
@@ -241,7 +267,7 @@ func (s *SubmissionDraftService) EnsureLatest(ctx context.Context, userID, proje
 	if err != nil {
 		return nil, fmt.Errorf("ensure latest submission draft: %w", err)
 	}
-	if err := d.decodeVariables(); err != nil {
+	if err := d.decode(); err != nil {
 		return nil, err
 	}
 	return &d, nil
@@ -263,17 +289,22 @@ func (s *SubmissionDraftService) Create(ctx context.Context, userID uuid.UUID, p
 	if err != nil {
 		return nil, err
 	}
+	// Seed the new draft's output language from the user's UI lang so
+	// the editor opens in the language the lawyer is already working in.
+	// Anything other than "en" normalizes to "de" — matches the DB CHECK
+	// constraint and the project's primary-language default.
+	draftLang := normalizeDraftLanguage(lang)
 	var d SubmissionDraft
 	err = s.db.GetContext(ctx, &d,
 		`INSERT INTO paliad.submission_drafts
-		     (project_id, submission_code, user_id, name)
-		 VALUES ($1, $2, $3, $4)
+		     (project_id, submission_code, user_id, name, language)
+		 VALUES ($1, $2, $3, $4, $5)
 		 RETURNING `+draftColumns,
-		projectID, submissionCode, userID, name)
+		projectID, submissionCode, userID, name, draftLang)
 	if err != nil {
 		return nil, fmt.Errorf("create submission draft: %w", err)
 	}
-	if err := d.decodeVariables(); err != nil {
+	if err := d.decode(); err != nil {
 		return nil, err
 	}
 	return &d, nil
@@ -394,6 +425,28 @@ func (s *SubmissionDraftService) Update(ctx context.Context, userID, draftID uui
 		idx++
 	}
 
+	if patch.SelectedParties != nil {
+		ids := *patch.SelectedParties
+		strs := make([]string, 0, len(ids))
+		for _, id := range ids {
+			strs = append(strs, id.String())
+		}
+		setParts = append(setParts, fmt.Sprintf("selected_parties = $%d::uuid[]", idx))
+		args = append(args, pq.StringArray(strs))
+		idx++
+	}
+
+	if patch.Language != nil {
+		newLang := strings.ToLower(strings.TrimSpace(*patch.Language))
+		if newLang != "de" && newLang != "en" {
+			return nil, ErrInvalidInput
+		}
+		setParts = append(setParts, fmt.Sprintf("language = $%d", idx))
+		args = append(args, newLang)
+		idx++
+	}
+
+
 	if len(setParts) == 0 {
 		return existing, nil
 	}
@@ -415,7 +468,7 @@ func (s *SubmissionDraftService) Update(ctx context.Context, userID, draftID uui
 	if err != nil {
 		return nil, fmt.Errorf("update submission draft: %w", err)
 	}
-	if err := d.decodeVariables(); err != nil {
+	if err := d.decode(); err != nil {
 		return nil, err
 	}
 	return &d, nil
@@ -436,6 +489,82 @@ func (s *SubmissionDraftService) Delete(ctx context.Context, userID, draftID uui
 	return nil
 }
 
+// ImportFromProject re-pulls every project-derived variable on the
+// draft by stripping the lawyer's overrides for those keys and bumping
+// `last_imported_at`. Project-derived prefixes today are project.*,
+// parties.*, deadline.* and (because the rule is keyed on
+// submission_code) procedural_event.* / rule.*; the lawyer's overrides
+// for firm.*, today.*, user.* survive because those values aren't
+// "imported from the project" in any meaningful sense.
+//
+// Idempotent on repeat clicks: nothing else mutates on the second
+// call apart from the new timestamp. The draft must be owned by the
+// caller (Get() applies the same ErrNotFound semantics as the rest of
+// the service).
+func (s *SubmissionDraftService) ImportFromProject(ctx context.Context, userID, draftID uuid.UUID) (*SubmissionDraft, error) {
+	existing, err := s.Get(ctx, userID, draftID)
+	if err != nil {
+		return nil, err
+	}
+	if existing.ProjectID == nil {
+		// No project to import from — surface as 400 via ErrInvalidInput.
+		return nil, fmt.Errorf("%w: cannot import from project on a project-less draft", ErrInvalidInput)
+	}
+
+	// Strip overrides that came from project state.
+	cleaned := PlaceholderMap{}
+	for k, v := range existing.Variables {
+		if isProjectDerivedKey(k) {
+			continue
+		}
+		cleaned[k] = v
+	}
+	raw, err := json.Marshal(cleaned)
+	if err != nil {
+		return nil, fmt.Errorf("marshal variables: %w", err)
+	}
+
+	var d SubmissionDraft
+	err = s.db.GetContext(ctx, &d,
+		`UPDATE paliad.submission_drafts
+		    SET variables = $1::jsonb,
+		        last_imported_at = now()
+		  WHERE id = $2 AND user_id = $3
+		  RETURNING `+draftColumns,
+		string(raw), draftID, userID)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, ErrSubmissionDraftNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("import from project: %w", err)
+	}
+	if err := d.decode(); err != nil {
+		return nil, err
+	}
+	return &d, nil
+}
+
+// isProjectDerivedKey reports whether a placeholder key sources its
+// value from the project record (rather than firm-wide or user-wide
+// state). The "Aus Projekt importieren" affordance strips overrides
+// for exactly these keys so the lawyer's manual edits don't survive
+// a re-pull.
+func isProjectDerivedKey(key string) bool {
+	switch {
+	case strings.HasPrefix(key, "project."):
+		return true
+	case strings.HasPrefix(key, "parties."):
+		return true
+	case strings.HasPrefix(key, "deadline."):
+		return true
+	case strings.HasPrefix(key, "procedural_event."):
+		return true
+	case strings.HasPrefix(key, "rule."):
+		return true
+	}
+	return false
+}
+
 // MarkExported updates the last_exported_* columns after a successful
 // export. Background-context safe.
 func (s *SubmissionDraftService) MarkExported(ctx context.Context, draftID uuid.UUID, templateSHA string) error {
@@ -461,9 +590,9 @@ func (s *SubmissionDraftService) MarkExported(ctx context.Context, draftID uuid.
 //
 // Override semantics:
 //
-//   variables[key] = ""  → delete the key (force [KEIN WERT: key])
-//   variables[key] = "X" → bag[key] = "X"
-//   key absent           → bag[key] unchanged (falls back to resolved value)
+//	variables[key] = ""  → delete the key (force [KEIN WERT: key])
+//	variables[key] = "X" → bag[key] = "X"
+//	key absent           → bag[key] unchanged (falls back to resolved value)
 //
 // Returns the final PlaceholderMap along with the SubmissionVarsResult
 // so callers (export, file naming) get the resolved entities too. A
@@ -473,9 +602,14 @@ func (s *SubmissionDraftService) MarkExported(ctx context.Context, draftID uuid.
 // lawyer's overrides fill the rest.
 func (s *SubmissionDraftService) BuildRenderBag(ctx context.Context, draft *SubmissionDraft) (PlaceholderMap, *SubmissionVarsResult, error) {
 	resolved, err := s.vars.Build(ctx, SubmissionVarsContext{
-		UserID:         draft.UserID,
-		ProjectID:      draft.ProjectID,
-		SubmissionCode: draft.SubmissionCode,
+		UserID:          draft.UserID,
+		ProjectID:       draft.ProjectID,
+		SubmissionCode:  draft.SubmissionCode,
+		SelectedParties: draft.SelectedParties,
+		// The draft's language overrides the user's UI lang — the lawyer
+		// can author an EN draft in a DE-UI session and vice versa
+		// (t-paliad-276). Empty / unknown falls back to "de".
+		Lang: normalizeDraftLanguage(draft.Language),
 	})
 	if err != nil {
 		return nil, nil, err
@@ -530,12 +664,13 @@ func (s *SubmissionDraftService) Export(ctx context.Context, draft *SubmissionDr
 // ProjectService.GetByID — callers get ErrNotFound on no-access.
 // ErrSubmissionRuleNotFound surfaces when no published rule matches the
 // requested submission_code.
-func (s *SubmissionDraftService) RenderProjectSubmission(ctx context.Context, userID, projectID uuid.UUID, submissionCode string, templateBytes []byte) ([]byte, *SubmissionVarsResult, error) {
+func (s *SubmissionDraftService) RenderProjectSubmission(ctx context.Context, userID, projectID uuid.UUID, submissionCode, lang string, templateBytes []byte) ([]byte, *SubmissionVarsResult, error) {
 	pid := projectID
 	resolved, err := s.vars.Build(ctx, SubmissionVarsContext{
 		UserID:         userID,
 		ProjectID:      &pid,
 		SubmissionCode: submissionCode,
+		Lang:           normalizeDraftLanguage(lang),
 	})
 	if err != nil {
 		return nil, nil, err
@@ -547,8 +682,17 @@ func (s *SubmissionDraftService) RenderProjectSubmission(ctx context.Context, us
 	return out, resolved, nil
 }
 
+// decode fills the parsed views (Variables, SelectedParties) from the
+// raw scan fields. Called by every fetch path so the caller sees both
+// populated together.
+func (d *SubmissionDraft) decode() error {
+	if err := d.decodeVariables(); err != nil {
+		return err
+	}
+	return d.decodeSelectedParties()
+}
+
 // decodeVariables turns the raw jsonb bytes into the PlaceholderMap.
-// Called by every fetch path so the caller sees a populated Variables.
 func (d *SubmissionDraft) decodeVariables() error {
 	if len(d.VariablesRaw) == 0 {
 		d.Variables = PlaceholderMap{}
@@ -562,6 +706,41 @@ func (d *SubmissionDraft) decodeVariables() error {
 	return nil
 }
 
+// decodeSelectedParties parses the uuid[] payload from pq.StringArray
+// into []uuid.UUID. Unparseable entries are dropped so a single bad
+// row never bricks the fetch — the worst case is one extra party
+// silently dropped from the selection, which surfaces as it not being
+// rendered in the merged document.
+func (d *SubmissionDraft) decodeSelectedParties() error {
+	if len(d.SelectedPartiesRaw) == 0 {
+		d.SelectedParties = nil
+		return nil
+	}
+	out := make([]uuid.UUID, 0, len(d.SelectedPartiesRaw))
+	for _, s := range d.SelectedPartiesRaw {
+		id, err := uuid.Parse(s)
+		if err != nil {
+			continue
+		}
+		out = append(out, id)
+	}
+	d.SelectedParties = out
+	return nil
+}
+
+// normalizeDraftLanguage maps any input to one of the two allowed
+// language values for paliad.submission_drafts.language. Anything other
+// than "en" (case-insensitive) collapses to "de" — matches the DB CHECK
+// constraint, the project's primary-language default, and the seed
+// behaviour for existing rows that came in before the column existed.
+func normalizeDraftLanguage(lang string) string {
+	if strings.EqualFold(strings.TrimSpace(lang), "en") {
+		return "en"
+	}
+	return "de"
+}
+
+
 // Compile-time guard: ensure the *models.User reference in the import
 // graph doesn't get optimised away by linters. The service doesn't
 // dereference User directly — that happens in SubmissionVarsService —

internal/services/submission_merge_test.go

@@ -327,6 +327,40 @@ func TestRenderHTML_WrapsMissingMarker(t *testing.T) {
 	}
 }
 
+// TestRenderHTML_WrapsOverriddenValueSameAsResolved is the t-paliad-274
+// regression: m's report on m/paliad#106 was that "When filled, the link
+// disappears". The preview HTML must wrap an override value with the
+// same <span class="draft-var"> as it would an unfilled placeholder, so
+// the click-jump from preview→sidebar persists after the user types a
+// value. There is no distinction at the renderer level between a value
+// that came from the resolved bag (project / parties / deadline lookups)
+// and a value the lawyer typed into the sidebar — both arrive in the
+// same PlaceholderMap and both must be wrapped.
+func TestRenderHTML_WrapsOverriddenValueSameAsResolved(t *testing.T) {
+	doc := `<w:document><w:body>` +
+		`<w:p><w:r><w:t>{{project.case_number}} / {{firm.name}}</w:t></w:r></w:p>` +
+		`</w:body></w:document>`
+	tmpl := minimalMergeDOCX(t, doc)
+	r := NewSubmissionRenderer()
+	// project.case_number is the typed-by-lawyer override.
+	// firm.name is the always-resolved value from the firm bag.
+	html, err := r.RenderHTML(tmpl, PlaceholderMap{
+		"project.case_number": "UPC_CFI_42/2026",
+		"firm.name":           "HLC",
+	}, nil)
+	if err != nil {
+		t.Fatalf("render html: %v", err)
+	}
+	wantOverride := `<span class="draft-var" data-var="project.case_number">UPC_CFI_42/2026</span>`
+	if !strings.Contains(html, wantOverride) {
+		t.Errorf("expected overridden value wrapped in draft-var span (click-jump must persist after fill, t-paliad-274), got %q", html)
+	}
+	wantResolved := `<span class="draft-var" data-var="firm.name">HLC</span>`
+	if !strings.Contains(html, wantResolved) {
+		t.Errorf("expected resolved value still wrapped, got %q", html)
+	}
+}
+
 // TestRender_DocxOutputUnchangedByPreviewWrap asserts the hard rule from
 // t-paliad-261: the .docx export path must NOT carry the preview-only
 // draft-var sentinels or any draft-var span markup. Renders the same

internal/services/submission_vars.go

@@ -6,17 +6,28 @@ package services
 //
 // Variables span six namespaces:
 //
-//	firm.*       process-wide (branding.Name)
-//	user.*       caller's user row
-//	today.*      server time in Europe/Berlin, locale-aware
-//	project.*    paliad.projects + joined proceeding type
-//	parties.*    paliad.parties grouped by role
-//	rule.*       paliad.deadline_rules row keyed by submission_code
-//	deadline.*   next open paliad.deadlines row for (project, rule), if any
+//	firm.*               process-wide (branding.Name)
+//	user.*               caller's user row
+//	today.*              server time in Europe/Berlin, locale-aware
+//	project.*            paliad.projects + joined proceeding type
+//	parties.*            paliad.parties grouped by role
+//	procedural_event.*   paliad.deadline_rules row keyed by submission_code
+//	                     — the "what kind of step in the proceeding"
+//	                     identity (Schriftsatz, Anhörung, Entscheidung,
+//	                     …). See docs/design-procedural-events-model-
+//	                     2026-05-25.md (t-paliad-262 Slice A).
+//	rule.*               legacy alias for procedural_event.*; emitted
+//	                     unconditionally for backward compatibility
+//	                     with Word templates and saved drafts authored
+//	                     before the rename. @deprecated — new templates
+//	                     should use the procedural_event.* form.
+//	deadline.*           next open paliad.deadlines row for
+//	                     (project, procedural_event), if any
 //
 // Locale handling: every long-form date string is computed in both DE
 // and EN; the renderer picks based on the user's lang preference. The
-// rule pretty-printer (legalSourcePretty) also has DE/EN variants.
+// procedural-event pretty-printer (legalSourcePretty) also has DE/EN
+// variants.
 //
 // Visibility: caller passes userID; ProjectService.GetByID enforces
 // paliad.can_see_project — unauthorised callers get the standard
@@ -61,10 +72,24 @@ func NewSubmissionVarsService(db *sqlx.DB, projects *ProjectService, parties *Pa
 // ProjectID is optional since t-paliad-243 — a global Schriftsatz draft
 // started from /submissions/new without picking a project carries
 // nil here and the project / parties / deadline lookups are skipped.
+//
+// SelectedParties is the t-paliad-277 multi-party selection: an empty
+// or nil slice means "include every party on the project" (the
+// backward-compat default that every legacy draft renders with); a
+// non-empty slice restricts the variable bag to the listed parties so
+// the submission only mentions the chosen subset.
 type SubmissionVarsContext struct {
-	UserID         uuid.UUID
-	ProjectID      *uuid.UUID
-	SubmissionCode string
+	UserID          uuid.UUID
+	ProjectID       *uuid.UUID
+	SubmissionCode  string
+	SelectedParties []uuid.UUID
+	// Lang pins the output language for this Build, overriding the
+	// caller's UI preference (user.Lang). When empty, Build falls back
+	// to user.Lang so existing callers (the format-only Slice 1 path)
+	// keep working unchanged. The draft editor passes the per-draft
+	// `language` column (t-paliad-276) so DE/EN can be picked
+	// independently of the UI session.
+	Lang string
 }
 
 // SubmissionVarsResult bundles the placeholder map with the lookup
@@ -114,7 +139,15 @@ func (s *SubmissionVarsService) Build(ctx context.Context, in SubmissionVarsCont
 		return nil, err
 	}
 
-	lang := user.Lang
+	// Per-call Lang override (t-paliad-276) wins over the user's UI
+	// language so the draft editor can render an EN .docx from a DE-UI
+	// session and vice versa. Falls back to the user pref when the
+	// caller didn't specify, preserving the format-only Slice 1
+	// behaviour.
+	lang := strings.ToLower(strings.TrimSpace(in.Lang))
+	if lang != "de" && lang != "en" {
+		lang = user.Lang
+	}
 	if lang == "" {
 		lang = "de"
 	}
@@ -163,7 +196,7 @@ func (s *SubmissionVarsService) Build(ctx context.Context, in SubmissionVarsCont
 	}
 
 	addProjectVars(bag, project, pt, lang)
-	addPartyVars(bag, parties)
+	addPartyVars(bag, filterPartiesBySelection(parties, in.SelectedParties))
 	addDeadlineVars(bag, next, project, lang)
 
 	out.Project = project
@@ -173,9 +206,36 @@ func (s *SubmissionVarsService) Build(ctx context.Context, in SubmissionVarsCont
 	return out, nil
 }
 
-// loadPublishedRule fetches the deadline_rule that owns the given
-// submission_code. Restricts to lifecycle_state='published' so drafts
-// never end up shaping a real submission.
+// filterPartiesBySelection returns the subset of parties whose IDs
+// appear in selected. An empty or nil `selected` slice is the
+// backward-compat default — every party flows through unchanged. A
+// non-empty slice preserves the input ordering of `parties` (which is
+// stable by name from PartyService.ListForProject) so the bag's
+// "first claimant / first defendant / first other" picks remain
+// deterministic for a given project state.
+func filterPartiesBySelection(parties []models.Party, selected []uuid.UUID) []models.Party {
+	if len(selected) == 0 {
+		return parties
+	}
+	allowed := make(map[uuid.UUID]struct{}, len(selected))
+	for _, id := range selected {
+		allowed[id] = struct{}{}
+	}
+	out := make([]models.Party, 0, len(parties))
+	for _, p := range parties {
+		if _, ok := allowed[p.ID]; ok {
+			out = append(out, p)
+		}
+	}
+	return out
+}
+
+// loadPublishedRule fetches the published procedural-event template
+// (paliad.deadline_rules row) keyed by submission_code. Restricts to
+// lifecycle_state='published' so drafts never end up shaping a real
+// submission. Function name retained for Slice A (prose-only); Slice
+// B renames it to loadPublishedProceduralEvent when the Go type is
+// renamed (t-paliad-262 §6).
 func (s *SubmissionVarsService) loadPublishedRule(ctx context.Context, submissionCode string) (*models.DeadlineRule, error) {
 	if submissionCode == "" {
 		return nil, ErrSubmissionRuleNotFound
@@ -310,57 +370,147 @@ func addProjectVars(bag PlaceholderMap, p *models.Project, pt *models.Proceeding
 	}
 }
 
-// addPartyVars populates parties.* using the first row of each role.
-// Multi-claimant / multi-defendant suits use the first row in Slice 1
-// per design §13.6; expanded grouping is Phase 2.
+// addPartyVars populates the parties.* namespace from the (already
+// filtered) list of parties.
+//
+// Three forms coexist per role (claimant / defendant / other) so
+// templates authored against any of them keep merging correctly:
+//
+//   - Comma-joined list (t-paliad-277, primary form for multi-party
+//     suits):
+//
+//     {{parties.claimants}}              — all claimants' names
+//     {{parties.claimants.representatives}}
+//     {{parties.defendants}} / .representatives
+//     {{parties.others}} / .representatives
+//
+//   - Indexed access (templates that need the primary individually):
+//
+//     {{parties.claimant.0.name}} / .representative
+//     {{parties.defendant.0.name}} / .representative
+//     {{parties.other.0.name}}    / .representative
+//
+//   - Flat legacy (kept forever per the issue's backward-compat
+//     contract; resolves to the FIRST selected party of each role):
+//
+//     {{parties.claimant.name}}  / .representative
+//     {{parties.defendant.name}} / .representative
+//     {{parties.other.name}}     / .representative
+//
+// Role bucketing matches the prior shape: German strings ("Kläger",
+// "Beklagte") and their English equivalents fold into claimant /
+// defendant; everything else (Streithelfer, Patentinhaberin, …) flows
+// into "other".
 func addPartyVars(bag PlaceholderMap, parties []models.Party) {
-	var claimant, defendant, other *models.Party
+	var claimants, defendants, others []models.Party
 	for i := range parties {
 		role := strings.ToLower(strings.TrimSpace(derefString(parties[i].Role)))
 		switch role {
-		case "claimant", "kläger", "klaeger":
-			if claimant == nil {
-				claimant = &parties[i]
-			}
+		case "claimant", "kläger", "klaeger", "klägerin", "klaegerin":
+			claimants = append(claimants, parties[i])
 		case "defendant", "beklagter", "beklagte":
-			if defendant == nil {
-				defendant = &parties[i]
-			}
+			defendants = append(defendants, parties[i])
 		default:
-			if other == nil {
-				other = &parties[i]
-			}
+			others = append(others, parties[i])
 		}
 	}
-	if claimant != nil {
-		bag["parties.claimant.name"] = claimant.Name
-		bag["parties.claimant.representative"] = derefString(claimant.Representative)
+
+	emitPartyGroup(bag, "claimant", "claimants", claimants)
+	emitPartyGroup(bag, "defendant", "defendants", defendants)
+	emitPartyGroup(bag, "other", "others", others)
+}
+
+// emitPartyGroup writes the three forms (joined list, indexed access,
+// flat legacy first-of-role) for a single role bucket. `singular` is
+// the legacy/indexed prefix (claimant / defendant / other); `plural`
+// is the joined-list prefix (claimants / defendants / others).
+func emitPartyGroup(bag PlaceholderMap, singular, plural string, group []models.Party) {
+	names := make([]string, 0, len(group))
+	reps := make([]string, 0, len(group))
+	for _, p := range group {
+		names = append(names, p.Name)
+		reps = append(reps, derefString(p.Representative))
 	}
-	if defendant != nil {
-		bag["parties.defendant.name"] = defendant.Name
-		bag["parties.defendant.representative"] = derefString(defendant.Representative)
+
+	bag["parties."+plural] = strings.Join(names, ", ")
+	bag["parties."+plural+".representatives"] = joinNonEmpty(reps, ", ")
+
+	for i, p := range group {
+		idx := fmt.Sprintf("parties.%s.%d", singular, i)
+		bag[idx+".name"] = p.Name
+		bag[idx+".representative"] = derefString(p.Representative)
 	}
-	if other != nil {
-		bag["parties.other.name"] = other.Name
-		bag["parties.other.representative"] = derefString(other.Representative)
+
+	if len(group) > 0 {
+		first := group[0]
+		bag["parties."+singular+".name"] = first.Name
+		bag["parties."+singular+".representative"] = derefString(first.Representative)
 	}
 }
 
-// addRuleVars populates rule.* — submission_code, name(_en),
-// legal_source (+ pretty form), primary_party, event_type.
-func addRuleVars(bag PlaceholderMap, r *models.DeadlineRule, lang string) {
-	bag["rule.submission_code"] = derefString(r.SubmissionCode)
-	if strings.EqualFold(lang, "en") {
-		bag["rule.name"] = r.NameEN
-	} else {
-		bag["rule.name"] = r.Name
+// joinNonEmpty joins a slice with sep but skips empty entries so a
+// list of representatives where one party has no representative reads
+// as "A, B" instead of "A, , B".
+func joinNonEmpty(parts []string, sep string) string {
+	out := make([]string, 0, len(parts))
+	for _, p := range parts {
+		if strings.TrimSpace(p) == "" {
+			continue
+		}
+		out = append(out, p)
 	}
+	return strings.Join(out, sep)
+}
+
+// addRuleVars populates the procedural-event variable namespace —
+// code, name(_en), legal_source (+ pretty form), primary_party, kind.
+//
+// Two key prefixes are emitted for every value:
+//
+//   - procedural_event.*  — canonical name (t-paliad-262 Slice A,
+//     design docs/design-procedural-events-model-2026-05-25.md).
+//   - rule.*              — legacy alias kept forever (m's call,
+//     issue m/paliad#93 Q7); existing Word templates and saved
+//     submission_drafts authored before the rename keep working.
+//
+// `procedural_event.event_kind` is the canonical key for the
+// procedural-event kind (filing|reply|hearing|decision|order). The
+// legacy `rule.event_type` alias holds the same string. The column
+// itself stays named `event_type` on `paliad.deadline_rules` — Slice
+// A is prose-only; the column-level rename to `event_kind` is Slice B.
+//
+// Function name stays `addRuleVars` to avoid coupling Slice A to the
+// Go-type rename which is Slice B (B.5 sub-slice).
+func addRuleVars(bag PlaceholderMap, r *models.DeadlineRule, lang string) {
+	code := derefString(r.SubmissionCode)
+	var localizedName string
+	if strings.EqualFold(lang, "en") {
+		localizedName = r.NameEN
+	} else {
+		localizedName = r.Name
+	}
+	legalSource := derefString(r.LegalSource)
+	legalSourcePrettyVal := legalSourcePretty(legalSource, lang)
+	primaryParty := derefString(r.PrimaryParty)
+	eventKind := derefString(r.EventType)
+
+	bag["procedural_event.code"] = code
+	bag["procedural_event.name"] = localizedName
+	bag["procedural_event.name_de"] = r.Name
+	bag["procedural_event.name_en"] = r.NameEN
+	bag["procedural_event.legal_source"] = legalSource
+	bag["procedural_event.legal_source_pretty"] = legalSourcePrettyVal
+	bag["procedural_event.primary_party"] = primaryParty
+	bag["procedural_event.event_kind"] = eventKind
+
+	bag["rule.submission_code"] = code
+	bag["rule.name"] = localizedName
 	bag["rule.name_de"] = r.Name
 	bag["rule.name_en"] = r.NameEN
-	bag["rule.legal_source"] = derefString(r.LegalSource)
-	bag["rule.legal_source_pretty"] = legalSourcePretty(derefString(r.LegalSource), lang)
-	bag["rule.primary_party"] = derefString(r.PrimaryParty)
-	bag["rule.event_type"] = derefString(r.EventType)
+	bag["rule.legal_source"] = legalSource
+	bag["rule.legal_source_pretty"] = legalSourcePrettyVal
+	bag["rule.primary_party"] = primaryParty
+	bag["rule.event_type"] = eventKind
 }
 
 // addDeadlineVars populates deadline.* from the next pending row. When

internal/services/submission_vars_aliases_test.go

@@ -0,0 +1,153 @@
+package services
+
+// Regression test for the procedural-event placeholder aliases
+// (t-paliad-262 Slice A, m/paliad#93 Q7).
+//
+// The variable bag emits TWO key prefixes for the procedural-event
+// namespace:
+//
+//   - procedural_event.*  (canonical, post-rename)
+//   - rule.*              (legacy, @deprecated)
+//
+// m's lock: keep the legacy aliases forever so lawyer-authored Word
+// templates and existing paliad.submission_drafts rows that already
+// contain `{{rule.X}}` keep merging correctly.
+//
+// This test pins the contract: every (canonical, legacy) pair must
+// resolve to the same string in the placeholder map, for every value
+// of (lang, present-vs-NULL columns). Removing the legacy aliases —
+// or letting them drift in value from the canonical — must light up
+// here BEFORE the change can land in main.
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/google/uuid"
+
+	"mgit.msbls.de/m/paliad/internal/models"
+)
+
+func TestAddRuleVars_CanonicalAndLegacyAliasesMatch(t *testing.T) {
+	t.Parallel()
+
+	// Pairs are (canonical key, legacy key). Order matters only for
+	// the assertion message — the test checks string equality both
+	// ways round.
+	pairs := []struct {
+		canonical string
+		legacy    string
+	}{
+		{"procedural_event.code", "rule.submission_code"},
+		{"procedural_event.name", "rule.name"},
+		{"procedural_event.name_de", "rule.name_de"},
+		{"procedural_event.name_en", "rule.name_en"},
+		{"procedural_event.legal_source", "rule.legal_source"},
+		{"procedural_event.legal_source_pretty", "rule.legal_source_pretty"},
+		{"procedural_event.primary_party", "rule.primary_party"},
+		{"procedural_event.event_kind", "rule.event_type"},
+	}
+
+	// Build a fully-populated rule row. Every nullable column has a
+	// distinct non-empty value so missing-value bugs (e.g. the legacy
+	// key copying "" while the canonical key copies the real value)
+	// would surface.
+	code := "dpma.appeal.bgh.begruendung"
+	desc := "Rechtsbeschwerdebegründung — § 102 PatG"
+	party := "both"
+	kind := "filing"
+	legal := "DE.PatG.102"
+	ruleCode := "§ 102 PatG"
+
+	rule := &models.DeadlineRule{
+		ID:             uuid.New(),
+		SubmissionCode: &code,
+		Name:           "Rechtsbeschwerdebegründung",
+		NameEN:         "Appeal brief",
+		Description:    &desc,
+		PrimaryParty:   &party,
+		EventType:      &kind,
+		LegalSource:    &legal,
+		RuleCode:       &ruleCode,
+	}
+
+	for _, lang := range []string{"de", "en"} {
+		t.Run(lang, func(t *testing.T) {
+			t.Parallel()
+			bag := PlaceholderMap{}
+			addRuleVars(bag, rule, lang)
+
+			for _, p := range pairs {
+				canonicalVal, canonicalOK := bag[p.canonical]
+				legacyVal, legacyOK := bag[p.legacy]
+
+				if !canonicalOK {
+					t.Errorf("canonical key %q missing from bag (lang=%s); "+
+						"Slice A must emit both forms", p.canonical, lang)
+				}
+				if !legacyOK {
+					t.Errorf("legacy alias %q missing from bag (lang=%s); "+
+						"removing legacy aliases would break existing Word "+
+						"templates that paliad doesn't see — keep the "+
+						"emission per m/paliad#93 Q7", p.legacy, lang)
+				}
+				if canonicalVal != legacyVal {
+					t.Errorf("alias drift: %q=%q vs %q=%q (lang=%s)",
+						p.canonical, canonicalVal,
+						p.legacy, legacyVal, lang)
+				}
+			}
+
+			// Sanity: the localized name actually localizes (the
+			// canonical and legacy `name` keys depend on lang). If
+			// this fails the loop above wouldn't catch it (both keys
+			// would agree on the wrong language).
+			localized := bag["procedural_event.name"]
+			if strings.EqualFold(lang, "en") && localized != rule.NameEN {
+				t.Errorf("expected EN localized name=%q, got %q",
+					rule.NameEN, localized)
+			}
+			if strings.EqualFold(lang, "de") && localized != rule.Name {
+				t.Errorf("expected DE localized name=%q, got %q",
+					rule.Name, localized)
+			}
+		})
+	}
+}
+
+func TestAddRuleVars_NullableFieldsEmitEmptyOnBothPrefixes(t *testing.T) {
+	t.Parallel()
+
+	// A minimal rule with every optional column NULL. The bag must
+	// still emit every canonical + legacy key — with the empty
+	// string — so downstream merging produces the standard
+	// "[KEIN WERT: ...]" marker rather than a broken template.
+	rule := &models.DeadlineRule{
+		ID:     uuid.New(),
+		Name:   "Generic step",
+		NameEN: "Generic step",
+	}
+
+	bag := PlaceholderMap{}
+	addRuleVars(bag, rule, "de")
+
+	mustHave := []string{
+		"procedural_event.code", "rule.submission_code",
+		"procedural_event.legal_source", "rule.legal_source",
+		"procedural_event.legal_source_pretty", "rule.legal_source_pretty",
+		"procedural_event.primary_party", "rule.primary_party",
+		"procedural_event.event_kind", "rule.event_type",
+	}
+	for _, key := range mustHave {
+		val, ok := bag[key]
+		if !ok {
+			t.Errorf("key %q missing from bag even with NULL source column; "+
+				"derefString must materialize the empty string so the "+
+				"merger sees the variable and renders the missing-value "+
+				"marker", key)
+		}
+		if val != "" {
+			t.Errorf("key %q = %q, want \"\" (source column was NULL)", key, val)
+		}
+	}
+}