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paliad/internal/db/migrations
mAi 07acf7b4a2
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feat(litigationplanner): Berufung unification — one upc.apl + 5 appeal_target chips (Slice B1, m/paliad#124 §18.1)
Collapses the 3 UPC appeal proceeding_types (upc.apl.merits 7 rules,
upc.apl.cost 2, upc.apl.order 7 = 16 total across 3 codes) into ONE
unified upc.apl proceeding type + a per-rule applies_to_target[]
discriminator. The verfahrensablauf picker now shows one "Berufung"
tile; after picking it, the user selects which decision the appeal is
directed AT via a 5-chip group (Endentscheidung / Kostenentscheidung /
Anordnung / Schadensbemessung / Bucheinsicht) and the engine filters
rules whose applies_to_target contains the picked slug.

m's 2026-05-26 decision: Schadensbemessung-as-appeal is a NEW first-
class target with its OWN rule set (no shared inheritance from
merits). The 5 enum values are all defined + addressable; for now
schadensbemessung and bucheinsicht return empty timelines until rules
are seeded in a follow-up slice (likely via /admin/rules or pairing
with t-paliad-193 orphan-concept-seed).

Migration 134 (additive only):
  - ADD proceeding_types.appeal_target text (CHECK on 5 slugs OR NULL)
  - ADD deadline_rules.applies_to_target text[] (CHECK each element
    in the 5 slugs)
  - INSERT the unified upc.apl row (inherits sort/color from
    upc.apl.merits)
  - Audit-first RAISE NOTICE pass listing every row about to be
    touched + a post-migration sanity check
  - Reassign rule rows: merits → applies_to_target={endentscheidung},
    cost → {kostenentscheidung}, order → {anordnung}
  - Archive (is_active=false, NOT DELETE) the 3 old proceeding_types
    so historical FKs stay intact
  - Down migration restores is_active=true on the 3 old types, points
    rules back by their applies_to_target stamp, drops the unified
    row, drops both columns. Safe.

Package additions (pkg/litigationplanner):
  - AppealTarget* constants + AppealTargets[] ordered list +
    IsValidAppealTarget(s) predicate (silent no-op on unknown slugs
    so a stale frontend chip doesn't break the render)
  - ProceedingType.AppealTarget *string field (top-level marker;
    NULL on non-appeal proceedings)
  - Rule.AppliesToTarget pq.StringArray field (per-row applies-to set)
  - CalcOptions.AppealTarget string (engine filter — when set,
    keeps only rules whose AppliesToTarget contains the slug)

Engine filter runs after ApplyRuleOverrides but before the rule walk
so the existing condition_expr / spawn / appellant-context machinery
operates on the filtered subset transparently.

paliad-side wiring:
  - deadline_rule_service.go: ruleColumns + proceedingTypeColumns
    extended to scan the new columns
  - handlers/fristenrechner.go: AppealTarget JSON field on the
    request payload, threaded into CalcOptions

Frontend (verfahrensablauf surface only):
  - Single "Berufung" tile replaces the 3 separate Berufung tiles
  - New 5-chip appeal-target row, shown only when upc.apl is picked
  - URL state ?target=<slug>; default endentscheidung when none set
  - APPELLANT_AXIS_PROCEEDINGS updated: upc.apl.* (3 entries) →
    upc.apl (1 entry)
  - i18n keys (DE + EN) for the new tile + the 5 chip labels +
    the "Worauf richtet sich die Berufung?" / "Appeal against:" prompt
  - calculateDeadlines threads appealTarget through to the API

Acceptance:
  - go build clean, go test all green (existing test suite — no new
    tests on the engine filter as a follow-up; the migration's
    sanity-check DO block guards the rule-reassignment count)
  - Live audit before drafting confirmed: 3 active UPC appeal
    proceeding_types, 16 rules total, primary_party already conforms
    to 4-value vocab on all proceeding-bound rules
2026-05-26 13:49:03 +02:00
..