Music: Mixes, Favorites and Stats; smart and Family playlists; library radio; offline albums; more

- Mixes tab: daily mix, most played, forgotten favorites, moods, on this day, decades, genres, smart playlists (rules), library radio
- Favorites (hearts, kept by the hub) and Stats (plays, time, top artists/songs/albums, streak, recently played)
- Family playlists shared by everyone with Music; queue reorder; More like this; album/artist About notes
- Save albums offline; player takes colors from the cover; Share a lyric line as a picture; verse of the day on Featured
- musicdata.js keeps plays, favorites, smart rules and Family playlists, with tests

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/index.html

@@ -59,6 +59,7 @@
 <script src="/reminders.js"></script>
 <script src="/file-history.js"></script>
 <script src="/music-extras.js"></script>
+<script src="/music-more.js"></script>
 <script src="/calendar-views.js"></script>
 <script src="/app.js"></script>
 <script src="/search-view.js"></script>