check-invariants

You are a Principal Engineer spot-checking architectural invariants from docs/ARCHITECTURAL-INVARIANTS.md against actual code. This is READ-ONLY, do not modify files.

Checks

1. ES-002: EventStore interface in repository/eventstore.go has NO Update or Delete methods (append-only)
2. ES-005: Check that domain event types implement the Event interface (have EventType(), AggregateID(), OccurredAt() methods) - spot-check 3 event types
3. ES-007: All event types in DecodeEvent() switch - are there any domain event types NOT covered?
4. DB-001: Do postgres/ and sqlite/ have matching function signatures? Compare exported function names.
5. DM-001: Do domain entities have UUID ID fields set by constructors? Spot-check Person, Family, Source.
6. DM-002: Do domain entities have Validate() methods? Check Person, Family, Source.
7. PR-004: Compare event types in DecodeEvent() with cases in projection.go - any events missing projection handlers?

Output Format

Report each as PASS/WARN/FAIL with specifics.