- Implemented Issue #9: User Authentication & Authorization
- Added User model fields (FailedLoginAttempts, LockedUntil, LastLogin)
- Created AuthService with JWT support, bcrypt hashing, and account lockout
- Added AuthMiddleware and AuthHandler
- Registered auth routes in backend
- Created AuthContext and RequireAuth component in frontend
- Implemented Login page and integrated with backend
- Fixed 'Blank Page' issue in local Docker environment
- Added QueryClientProvider to main.tsx
- Installed missing lucide-react dependency
- Fixed TypeScript linting errors in SetupGuard.tsx
- Updated docker-entrypoint.sh to use 127.0.0.1 for reliable Caddy checks
- Verified with local Docker build
