- 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
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