- users module: profile + address CRUD behind use cases (users_profiles,
users_addresses)
- roles customer/admin on identity_users; role resolved from DB per request
- shared auth contract (Authenticate, requireRole, requireOwnerOrAdmin)
injected from composition root; users never imports identity
- authorization runs before existence checks; address SQL scoped by user_id
- @fastify/cookie registered once at app root (cross-module)
- migrations 003_identity_roles + 004_users (reversible)
- no new npm dependencies; tests: unit 52, integration 22
Gates: reviewer/security/qa APPROVED; verify.sh green
- request_id generated or sanitized-propagated on every request (x-request-id)
- structured JSON logging (pino), one correlated line per request, injectable logger
- error envelope v2 { error: { statusCode, code, message, details? }, requestId }
- 5xx messages always generic; stack traces stay in server logs only
- explicit parseJson (zod) input validation hook at the API layer
- README HTTP contract section; deps justified in spec/tech.md
- all gates approved; verify.sh green
