- Add fast-path SAF metadata reading via /proc/self/fd with displayNameHint support, falling back to temp copy
- Replace repeated findFile() CUE audio sibling lookups with cached case-insensitive directory listing
- Cache parsed CUE sheets to avoid redundant parsing during library scans
- Optimize incremental scan CUE modTime lookup from O(N*M) to O(N+M)
- Defer local library provider loading until localLibraryEnabled setting is true
- Replace O(n) track+artist history lookup with O(1) map-based lookup
- Delay startup maintenance tasks by 2s to reduce launch-time contention
Parse .cue files in library scanner (Go + SAF) to display individual
tracks instead of one large audio file. Add FFmpeg-based CUE splitting
to extract tracks into separate FLAC files with embedded metadata and
cover art.
- Go: CUE parser, two-pass scan (CUE first, skip referenced audio),
virtual paths (cue#trackNN) for DB UNIQUE constraint, audioDir
override for SAF temp-file scenarios
- Android: SAF scanner recognizes .cue in both full and incremental
scan, copies .cue+audio to temp for Go parsing, unchanged-CUE audio
sibling dedup, parseCueSheet handler resolves SAF audio siblings
- Dart: FFmpegService.splitCueToTracks, CUE split UI in track metadata
screen, persistent output dir for SAF splits with write-back
- CUE virtual path normalization across fileExists/fileStat/deleteFile/
openFile; play/share/open blocked for virtual tracks with guidance to
split first; delete only removes DB entry, not shared .cue file
- iOS: parseCueSheet handler
- Localization: 12 new CUE-related strings
Requested by @Seerafimm
Closes#201