release: v0.5.0 - Authentication, API Keys & Advanced Features

Complete v0.5.0 implementation:

Database (@db-engineer):
- 3 migrations: users, api_keys, report_schedules tables
- Foreign keys, indexes, constraints, enums

Backend (@backend-dev):
- JWT authentication service with bcrypt (cost=12)
- Auth endpoints: /register, /login, /refresh, /me
- API Keys service with hash storage and prefix validation
- API Keys endpoints: CRUD + rotate
- Security module with JWT HS256

Frontend (@frontend-dev):
- Login/Register pages with validation
- AuthContext with localStorage persistence
- Protected routes implementation
- API Keys management UI (create, revoke, rotate)
- Header with user dropdown

DevOps (@devops-engineer):
- .env.example and .env.production.example
- docker-compose.scheduler.yml
- scripts/setup-secrets.sh
- INFRASTRUCTURE_SETUP.md

QA (@qa-engineer):
- 85 E2E tests: auth.spec.ts, apikeys.spec.ts, scenarios.spec.ts, regression-v050.spec.ts
- auth-helpers.ts with 20+ utility functions
- Test plans and documentation

Architecture (@spec-architect):
- SECURITY.md with best practices
- SECURITY-CHECKLIST.md pre-deployment
- Updated architecture.md with auth flows
- Updated README.md with v0.5.0 features

Documentation:
- Updated todo.md with v0.5.0 status
- Added docs/README.md index
- Complete setup instructions

Dependencies added:
- bcrypt, python-jose, passlib, email-validator

Tested: JWT auth flow, API keys CRUD, protected routes, 85 E2E tests ready

Closes: v0.5.0 milestone

src/api/v1/__init__.py

@@ -6,8 +6,12 @@ from src.api.v1.scenarios import router as scenarios_router
 from src.api.v1.ingest import router as ingest_router
 from src.api.v1.metrics import router as metrics_router
 from src.api.v1.reports import scenario_reports_router, reports_router
+from src.api.v1.auth import router as auth_router
+from src.api.v1.apikeys import router as apikeys_router
 
 api_router = APIRouter()
+api_router.include_router(auth_router, tags=["authentication"])
+api_router.include_router(apikeys_router, tags=["api-keys"])
 api_router.include_router(scenarios_router, prefix="/scenarios", tags=["scenarios"])
 api_router.include_router(ingest_router, tags=["ingest"])
 api_router.include_router(metrics_router, prefix="/scenarios", tags=["metrics"])