- BookmarkDetail: Add labels property, display and manage labels in detail view
- Add AddLabelsToBookmarkUseCase and RemoveLabelsFromBookmarkUseCase
- Update UpdateBookmarkUseCase and BookmarkUpdateRequest for label operations
- UI: Show labels in BookmarkDetailView, add label management sheet
- DefaultUseCaseFactory: Provide use cases for label management
- Localizable: Add/adjust label-related strings, minor cleanup
- SettingsServerView: Update debug endpoint
- SidebarTab: Change 'Alle' to 'All'
- Project: Remove unused region from Xcode project
- Add PATCH API endpoint for updating bookmarks with toggle functions
- Add DELETE API endpoint for permanent bookmark deletion
- Implement UpdateBookmarkUseCase with convenience methods for common actions
- Implement DeleteBookmarkUseCase for permanent bookmark removal
- Create BookmarkUpdateRequest domain model with builder pattern
- Extend BookmarkCardView with action menu and confirmation dialog
- Add context-sensitive actions based on current bookmark state
- Implement optimistic updates in BookmarksViewModel
- Add error handling and recovery for failed operations
- Enhance UI with badges, progress indicators, and action buttons
