Sokhi's scans keep returning 0 findings and we've been guessing at the cause
across several fixes. Add a skip-reason breakdown + per-album decision dump so
the next scan log shows it definitively instead:
- [cover-diag] per-album (first 5): album, raw DB path, resolved path,
has_local, embedded, sidecar, db_missing, cover_enabled, needs_fix.
- [cover-diag] skip breakdown in the summary: have_disk_art /
no_local_db_has_art (path didn't resolve, DB has thumb) / no_art_source.
Leading hypothesis this will confirm: the file paths aren't resolving
(resolved=None → has_local=False), so the scan only ever looks at db_missing —
which flipped every album from flagged (before the DB-art fix populated thumbs)
to skipped (after). If so the real fix is path resolution, not the art logic.
No behavior change — logging only.
d9a1fdb81f