- Add logoutConfirmation key to English and German ARB files
- Update settings page to use localized string instead of hardcoded text
- Regenerate localization files
- Display current app mode in settings
- Add dialog to switch between local and online modes
- Fix logout to reset setup state and return to setup screen
- Create auth feature with Clean Architecture (domain/data/presentation)
- Add login and register pages with form validation
- Implement secure token storage with flutter_secure_storage
- Create AuthenticatedClient for automatic Bearer token headers
- Add AuthViewModel for global auth state management
- Update router with auth guards (redirect to login if not authenticated)
- Add logout option to settings page
- Update TaskRemoteDataSource to use authenticated client
- Add auth-related localization strings (EN/DE)
- Add date parameter support to DailyAgendaPage for calendar navigation
- Add popup menu to task tile with delete and reschedule options
- Set default locale to English when none is saved
- Update API base URL comment for desktop vs Android
- Update localization imports to use package path
- Remove unused provider import from main.dart
- Fix default test file
- Refactor settings dialogs to use Radio widget
