The quality job kept resolving 0/N because DB-path resolution failed in the
deployed environment for reasons the logs wouldn't surface. Switch to the
mechanism the WORKING file tools use: os.walk the real music folders
(transfer + download + configured library paths, abspath'd) exactly like
orphan_file_detector and fake_lossless_detector — those reliably see files
because they never touch the DB's stored relative paths.
- Walk all existing music dirs, collect audio files (dedup by realpath),
probe each with the same probe_audio_quality the import guard uses, check
quality_meets_profile (strict). Below-profile files become findings.
- Match each walked file back to its DB track via a path-suffix index (last
1-3 components) for real title/artist/album + track id; fall back to the
file's own tags when no DB row matches (finding filed as 'file').
- Loud diagnostics: logs the folders walked and the audio-file count, and
warns clearly when no music folder exists to walk.
The fix handler already works with the now-absolute file_path and an optional
entity_id (deletes the file by real path; DB row only when known).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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