Task O.3: IiosAuditLink (traceId/correlationId/scopeId/actorRefId/action/
resourceType/resourceId) + recordAudit() helper (reads the current trace from ALS,
best-effort). Written at the decision/mutation points — route approve/deny, AI
accept/reject, meeting summarize, outbound send — so the trace appears in DB and a
decision can be replayed / traced across services (mandated iios_audit_link).
Migration audit-link; resetDb truncates it. 2 tests bind approve/accept to a trace.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Event-driven projector creates/collapses NEEDS_REPLY items from message.sent
(traceId propagated; inbox.item.created emitted) and resolves them to DONE on
message.read; idempotent via processed-event ledger. markRead now emits a
message.read outbox event (atomic). OutboxRelay runs on a 500ms timer in the
app (off in tests). Shared resetDb (TRUNCATE CASCADE) fixes cross-spec FK
isolation. 32 tests green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>