Tightens paliad.deadline_rules.primary_party from free-text to a CHECK
constraint over the canonical four-value vocab (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.
Migration 135 (audit-first):
- DO block RAISEs NOTICE for every non-conforming row + RAISEs
EXCEPTION if any dirty rows exist (manual cleanup required).
Live audit (Supabase, 2026-05-26 §18.0) confirmed zero dirty rows
on the current corpus; the audit pass stays in the migration as
safety against future drift.
- ALTER TABLE … ADD CONSTRAINT deadline_rules_primary_party_chk
CHECK (primary_party IS NULL OR primary_party IN
('claimant', 'defendant', 'court', 'both'))
- Post-migration distribution NOTICE so the operator sees the
final per-value count.
- Down = DROP CONSTRAINT. No data revert needed.
Package additions (pkg/litigationplanner):
- PrimaryParty* constants (PrimaryPartyClaimant / Defendant / Court
/ Both) + PrimaryParties[] ordered list + IsValidPrimaryParty(s)
predicate. Empty string is "no value supplied" = valid (NULL maps
to empty on the wire); non-empty must match one of the four
canonical values.
- Sibling unit tests (primary_party_test.go) pin the four-value
vocab + the chip order + IsValidAppealTarget's matching shape.
Rule-editor validation hook (rule_editor_service.go):
- Create() validates input.PrimaryParty before INSERT.
- UpdateDraft() validates patch.PrimaryParty before UPDATE.
- Both surface a user-friendly 400 with the canonical vocab listed
instead of leaking the raw PG CHECK constraint-violation message.
- Uses errors.Is(err, ErrInvalidInput) so handler 400 routing
continues to work.
services/fristenrechner.go cleanup:
- The B2-inlined isValidPartyForLookup helper is replaced with the
canonical lp.IsValidPrimaryParty. No behaviour change.
No frontend changes — the rule-editor's primary_party UI already
constrains to the four values via a select; the validation hook is
defense-in-depth.
Audit:
- go build + go test (incl. new lp unit tests) all green
- Pre-migration audit confirmed: 26 claimant + 26 defendant + 38
court + 63 both + 78 NULL = 231 total, all in canonical vocab
- event_categories.party (text[] array, narrower semantic) is
NOT touched in this migration per the design doc's
"out of scope, separate follow-up" decision
