- Create auth store (Zustand) for managing user and tokens
- Implement API client with automatic token refresh on 401
- Add LoginPage with email/password form and demo credentials
- Create ProtectedRoute component for route-level authorization
- Update App.tsx to integrate authentication and login page
- Add logout functionality to UserMenu component
- All protected routes now require authentication
- Token auto-refresh on expiry using refresh tokens
- Toast notifications for auth errors and events
Frontend now fully integrated with backend API authentication.