feat: Minstrel no longer talks to Lidarr: its connection, Delete via Lidarr and the unmonitor options are gone, and the track reports are plain quarantine (M502 #5525)

Migration 0091 drops lidarr_config and renames the quarantine tables, types,
indexes and the history column off the Lidarr name. The Integrations Lidarr
card, the Reports "Delete via Lidarr" action, the merge and remove-track
unmonitor options, the Lidarr audit actions and error codes go, on the
server, web and Android. The README describes acquisition as it is now.

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

internal/notifications/kinds.go

@@ -23,8 +23,8 @@ const (
 	KindScanFailed        Kind = "scan_failed"
 	KindTracksMissing     Kind = "tracks_missing"
 	KindDuplicatesFound   Kind = "duplicates_found"
-	// KindDuplicatesResolved: the duplicate resolver (M498) merged copies or
-	// changed a Lidarr release on its own. The operator asked for that to
+	// KindDuplicatesResolved: the duplicate resolver (M498) merged copies on
+	// its own. The operator asked for that to
 	// happen automatically; this is how it stays visible.
 	KindDuplicatesResolved Kind = "duplicates_resolved"
 	KindPlaybackErrors     Kind = "playback_errors"

internal/notifications/render.go

@@ -38,7 +38,7 @@ type Payload struct {
 	// Count is the coalesced kinds' running total.
 	Count int64 `json:"count,omitempty"`
 	// Detail is free text: scan_failed's error message, and what the duplicate
-	// resolver changed in Lidarr for duplicates_resolved.
+	// resolver merged for duplicates_resolved.
 	Detail string `json:"detail,omitempty"`
 }
 
@@ -117,7 +117,7 @@ func Render(kind Kind, payload []byte) Rendered {
 			Link:  "/admin/duplicates",
 		}
 	case KindDuplicatesResolved:
-		body := "Copies Lidarr does not need were merged into the one it tracks."
+		body := "Extra copies of a song were merged into the one the album keeps."
 		if p.Detail != "" {
 			body = p.Detail
 		}