- Add recycleWorktrees toggle to the Worktrees section in SettingsModal
- Wire checkbox state to settings store
- Add unit tests for recycleWorktrees setting behavior
- Exclude checkbox inputs from full-width text input styles using :not([type="checkbox"])
- Add dedicated checkbox styling with proper size, accent color, and cursor
- Add test verifying groupOverlappingFiles input renders as a checkbox
- Add sidebar navigation structure with section links to SettingsModal
- Implement sidebar and form layout styles in styles.css
- Add SettingsModal sidebar navigation tests for section switching
- Update SettingsModal component with multi-section support