Implement remaining Round 3 enhancements:
- ArrowDown when panel unfocused activates it at first item (like Outline view)
- 3-zone drag-drop: top/bottom thirds insert above/below, middle third nests as child
- Click on todo text to focus it in editor (onClick callback)
- Dragging parent automatically moves nested children (stopPropagation fix)
- Cross-file move inserts todo below heading with blank line (addBlankLine param)
- Updated CLAUDE.md with sidebar view architecture documentation
Build: 85 tests pass, production build succeeds.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Enhance the todo tracker sidebar panel with:
- Group todos by heading from the source file
- Display nested (indented) todos as a tree
- Drag-and-drop to reorder todos within/across heading groups
- Keyboard navigation (arrow keys, Enter to open, M to move, toggle hotkey)
- Right-click context menu replacing the ellipsis button
- Proper focus management (no focus stealing on refresh)
- Platform-aware Obsidian hotkey matching for toggle checkbox
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
