dtoro 9e3783734e feat: Phase 3b — EntityService, postgres EntityRepository, converged mutations ...

Problem: entity mutations (create/update/state) existed as three drifted
copies — HTTP CreateEntity/PatchEntity, MCP create_entity/
update_entity_attributes/set_entity_state — each with its own inline
SQL, its own validation subset (MCP validated lifecycle states, HTTP
did not; HTTP patched attributes without regenerating derived checks,
MCP did; MCP wrote no audit trail), the exact drift ADR 0016's first
vertical slice exists to collapse.

Change:
- internal/core/ports: DerivedCheck, Idempotency (adapter-owned request
  hash + cached-body renderer so the replay record commits in the
  create's transaction), IdempotentResponse + GetIdempotent read,
  AuditEntry gains Method/Path/CorrelationID, Event gains
  CorrelationID; EntityUpdateInput carries ExpectedVersion +
  RederiveChecks (derivation for updates runs repo-side: the graph
  host fallback reads relationships through the open tx).
- internal/adapters/postgres/repositories.go: EntityRepo (Create/
  Update/SetState/reads/idempotency) preserving the load-bearing
  check-then-act invariants in-tx: version WHERE-clause, declared
  transitions + preconditions (ValidateTransition), duplicate-slug
  mapping, audit/event/writeCheck all inside one BEGIN…COMMIT.
  OntologyRepo: TTL-cached OntologyStore.
- internal/core/app/entities.go: EntityService — ontology validation
  (type exists, concrete, state declared — the stricter MCP rule now
  governs both surfaces), default-state resolution, id generation,
  derivation for creates, audit/event construction, idempotency
  pass-through.
- httpapi CreateEntity/PatchEntity rewired to the service; PATCH now
  regenerates derived checks (the A2 parity gap). MCP create/update/
  set-state tools call the same service — and now write audit + event
  rows like the HTTP surface always did.
- Integration-test seed paths fixed for the adapters/postgres package
  depth (../../../seeds).

Pre-existing failures documented: TestAPIEndToEnd (entity_types 60 vs
59; 501-endpoint now 200), TestClientLifecycleEndToEnd, TestPhase3*
rows — verified failing identically at ec11956 (scratch approval-
notifier commit test drift), unrelated to this change. All mutation
integration tests (create/patch/idempotency/audit/regeneration) pass.

Verification: make test-db (postgres + mcp green, httpapi green except
the pre-existing set), full non-DB suite (19 pkgs), golangci on new
packages — 0 issues.

2026-08-15 23:38:21 +02:00

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