- Replace hardcoded /tmp/iOpenPod with importlib.util.find_spec lookup
with fallback to /tmp/iOpenPod and ~/iOpenPod for dev/backward compat
- Add iopenpod>=1.0.53 to requirements.txt
- Remove deprecated mkdir temp/downloads/converted from install.sh
(all paths now XDG-compliant)
- New src/artwork/ module with iPod Nano 7G cover art support
- codecs: RGB565/RGB555/UYVY/JPEG encode/decode via numpy
- presets: 50+ iPod artwork format definitions
- chunks: ArtworkDB binary parser/writer (MHFD→MHSD→MHLI→MHII→MHNI)
- writer: ithmb file generation + ArtworkDB assembly
- extractor: cover extraction from audio files (APIC/covr/FLAC pictures)
- cache: local JPEG cache for player UI
- iTunes-style playback bar with 60x60 cover art display
- Scan library now caches cover art by artist+album
- iPod Nano7 transfer writes artwork to ArtworkDB + ithmb
- FFmpeg conversion preserves embedded cover art (-map 0:t?)
- One-time reembed_covers.py script in /tmp
- MetadataHandler process_file() fallback to cover_path
- Bug fixes: missing read_existing_artwork import, signed PID in Q format
