- Removed entire SavedSearch system (interface, state, localStorage, dropdown)
- Added favorites system: Set of clip IDs stored in localStorage under
kithara-favorites
- Heart icon on each track (ribbon + tile view) toggles favorite
- Heart button in toolbar filters view to favorites only
- Filled heart when favorited, outline when not
- Empty state: 'No favorites yet. Heart a track to add it here!'
- Removed 'Save this search' button from filters panel