Add complete authentication system supporting both web (NPM forward auth)
and mobile (OIDC) authentication flows.
Web flow:
- Check /auth/me on startup to detect NPM forward auth session
- Cookies handled by proxy, no Bearer tokens needed
Mobile flow:
- flutter_appauth for OIDC Authorization Code + PKCE
- POST /auth/sync to get user profile and roles
- Token storage in SharedPreferences
Shared:
- Permission system with Domain/Action enums and Role class
- PermissionGate and AdminGate widgets for UI permission checks
- Route guards redirecting unauthenticated users to login
- Login page with platform-specific messaging
Platform config:
- iOS: CFBundleURLTypes for net.schweitz.tatlock://
- Android: appAuthRedirectScheme, minSdk 23
Docs:
- Added Freezed 3.x sealed class documentation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
