feat(library): integrate local library module from Codex
Full local library implementation with:
- Filesystem scanner for FLAC, WAV, AIFF, APE, ALAC files
- Metadata extraction using lofty crate
- CUE sheet parsing for single-file albums
- SQLite persistence with WAL mode
- 13 Tauri commands for library management
Commands:
- library_add_folder, library_remove_folder, library_get_folders
- library_scan, library_get_scan_progress
- library_get_albums, library_get_album_tracks, library_get_artists
- library_search, library_get_stats, library_clear
- library_get_track, library_play_track (with CUE seek support)
Based on implementation by Codex in local-library worktree.
vicrodh
1895812830