Lorenz's Slice 9 (t-paliad-195) deferred mig 093 because 40 active
paliad.deadline_rules still pointed at the 7 litigation-category
proceeding_types (INF, REV, CCR, APM, APP, AMD, ZPO_CIVIL). Phase 3
Slice 5 (mig 087/088) already retired the category from project-binding;
this migration retires it from the rule corpus.
PLAN CHOICE (audit-gated, paliadin-approved): archive-all-40 rather than
the original re-parent plan. The audit found that 23 of 40 Pipeline-A
rules share their `code` with an existing fristenrechner rule on the
proposed re-parent target (e.g. inf.oral exists on both INF and
UPC_INF). Re-parenting would leave two rules with identical
(proceeding_type_id, code), breaking the implicit per-proceeding
rule_code identity contract keyed off by projection / search /
rule_editor. The fristenrechner rules are clearly the production
version (proper German names, legal_source pinned to UPC.RoP citations,
full bilateral chains, intra-proceeding counterclaim handling); the
Pipeline-A rules are stubs (English-only, mostly NULL legal_source,
duration_value=0 for 28 of 40, no spawn_proceeding_type_id wiring).
Migration 093 sequence (atomic):
1. Snapshot proceeding_types_pre_093 + deadline_rules_pre_093 as
permanent audit anchors.
2. INSERT _archived_litigation pt (category='archived',
is_active=false, jurisdiction='UPC') to home the rules.
3. UPDATE all 40 rules → archive pt + lifecycle_state='archived' +
is_active=false. Captured in paliad.deadline_rule_audit via the
mig 079 trigger.
4. DELETE the 7 litigation rows from paliad.proceeding_types (now
safe — nothing references them).
5. Hard assertions: 0 litigation rows survive, exactly 40 rules on
the archive pt, every snapshot row matches a surviving rule by id.
Critical FK note: deadline_rules.proceeding_type_id is ON DELETE CASCADE
→ proceeding_types(id). A naive DELETE of the 7 litigation rows would
cascade-delete all 40 rules and break the FK from the 1 live deadline
("Lecker Frist", completed) that still references inf.rejoin/INF.
Re-homing the rules before deleting the pt rows is mandatory.
Verified via BEGIN..ROLLBACK against live DB: assertions pass, all 30
intra-litigation parent_id chains preserved, the live deadline FK
stays valid.
Test impact:
internal/services/project_service_test.go:72 used to look up
category='litigation' AND code='INF' to exercise the Slice 5 negative
case. Post-mig-093 that lookup returns NULL. Rewritten to fetch any
category <> 'fristenrechner' row (the _archived_litigation pt is the
canonical post-093 row); defence-in-depth coverage of both the Go
service guard and the mig 088 SQL trigger is preserved.
SURFACED FOR LEGAL REVIEW (4 coverage questions the audit found, to be
triaged as follow-up tasks):
1. inf.prelim (Preliminary Objection, RoP 19, 1 month) — not present
on UPC_INF. Possible coverage gap; legal review to decide whether
to add it to the fristenrechner ruleset.
2. inf.appeal / rev.appeal / ccr.appeal as cross-proceeding spawns
into UPC_APP (2 months, UPC.RoP.220.1) — fristenrechner UPC_APP
currently starts standalone with no spawn from UPC_INF/UPC_REV.
Possible UX gap; Pipeline-A versions had
spawn_proceeding_type_id=NULL so they weren't functional spawns
either.
3. ccr.amend / rev.amend (spawn rules) — superseded by
inf.app_to_amend / rev.app_to_amend on UPC_INF / UPC_REV. Safe to
drop; no action needed.
4. zpo.klage / zpo.vertanz / zpo.klageerw / zpo.berufung — no UPC
analogue; redundant with the DE_INF / DE_INF_OLG / DE_INF_BGH and
DE_NULL / DE_NULL_BGH chains. Safe to drop; no action needed.
Files:
internal/db/migrations/093_retire_litigation_category.up.sql (new)
internal/db/migrations/093_retire_litigation_category.down.sql (new)
internal/services/project_service_test.go (test rewrite)
mAi
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