New Core Modules (4):
Clipboard - System clipboard integration
- getText()/setText() via SDL2 clipboard API
- hasText() and clear() utilities
- Cross-platform support
DragDrop - Drag and drop system
- DragData with typed data transfer
- DropZone registration with type filtering
- DragDropManager for coordinating operations
- Hover detection and drop results
- Helper functions: makeDraggable(), makeDropZone()
Shortcuts - Keyboard shortcuts system
- Shortcut struct with key + modifiers
- ShortcutManager for registration and checking
- Common shortcuts (Ctrl+C/V/X/Z, etc.)
- Human-readable formatting (formatShortcut)
- Enable/disable individual shortcuts
FocusGroup - Focus group management
- FocusGroup for widget tab order
- focusNext/Previous with wrap support
- FocusGroupManager for multiple groups
- Group switching (focusNextGroup)
- Tab/Shift+Tab navigation
All tests passing
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
