feat: a held album below the quality you settle for, or holding a video rip, stays wanted for a better copy, and the import replaces the old tracks with their likes and plays carried over (M502 #5524)

- acquisition_settings.upgrade_until (default High quality lossy, Lidarr's
  cutoff, note #5527; "" is off), an "Upgrade until" row under Searching.
- The wanted worker judges held albums hourly: tier per format from size per
  second (the scanner records no bitrate), the album's worst. Below the
  cutoff it is wanted for quality; a video rip among its tracks always.
- The schedule searches upgrades weekly, after open wants; a release no
  better than the copy held is refused ("not_better").
- The import matches each file to the track it would replace (recording,
  then disc/track) and replaces it when it is a rip or the file is a better
  tier: over the same path in one rename, or filed beside it and the old
  track folded in (library.ReplaceTrack: file first, then foldTrackInto).
  Nothing better: the release is set aside.
- Collection › Upgrades (Lidarr's Cutoff Unmet); Suspect sources says when a
  clean copy was looked for instead of Lidarr's search.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/db/dbq/reacquisition.sql.go

@@ -217,7 +217,7 @@ ON CONFLICT (release_group_mbid) DO UPDATE
        fulfilled_at = NULL,
        updated_at   = now()
  WHERE wants.fulfilled_at IS NOT NULL
-RETURNING id, release_group_mbid, artist_mbid, artist_name, title, primary_type, first_release_date, reason, album_id, created_by, wanted_at, fulfilled_at, created_at, updated_at, searched_at, search_outcome, search_considered, best_release, best_verdict, search_error
+RETURNING id, release_group_mbid, artist_mbid, artist_name, title, primary_type, first_release_date, reason, album_id, created_by, wanted_at, fulfilled_at, created_at, updated_at, searched_at, search_outcome, search_considered, best_release, best_verdict, search_error, upgrade, held_tier, held_quality, upgrade_checked_at
 `
 
 type WantMissingAlbumParams struct {
@@ -260,6 +260,10 @@ func (q *Queries) WantMissingAlbum(ctx context.Context, arg WantMissingAlbumPara
 		&i.BestRelease,
 		&i.BestVerdict,
 		&i.SearchError,
+		&i.Upgrade,
+		&i.HeldTier,
+		&i.HeldQuality,
+		&i.UpgradeCheckedAt,
 	)
 	return i, err
 }