- Add sort mode toggle button (folder structure / date modified)
- Sort by date: flat list with all folders and files by updatedAt desc
- Most recently modified items appear at top for quick access
- Hide 'Unfiled' label when not dragging (only show as drop target)
- Remove excessive spacing between folder tree and unfiled section
- Support Ctrl/Cmd+click for multi-select toggle
- Support Shift+click for additive range selection across folders and files
- Add batch delete via right-click context menu with confirmation
- Add active/inactive visual states matching connection sidebar behavior
- Remove transition-colors for instant selection feedback
- Unified selection index system for cross-type range selection
* fix(postgre): Fix the data type syntax when creating tables in PostgreSQL
* fix(ui): Save the state when closing the SQL library through the close button
