- Merge Scripts/Callbacks/Links tabs into single Settings tab with collapsible sections
- Rename Actions tab to Quick Access showing both scripts and configured links
- Add prev/next buttons to mini (secondary) player
- Add optional description field to links (backend + frontend)
- Add CSS chevron indicators on collapsible settings sections
- Persist section collapse/expand state in localStorage
- Fix race condition in Quick Access rendering with generation counter
- Order settings sections: Scripts, Links, Callbacks
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>