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/api/api.go

@@ -21,14 +21,13 @@ import (
 	"git.fabledsword.com/bvandeusen/minstrel/internal/eventbus"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/importer"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/library"
-	"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrconfig"
-	"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrquarantine"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/lifecycle"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/mailer"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/netsettings"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/notifications"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/playevents"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/playlists"
+	"git.fabledsword.com/bvandeusen/minstrel/internal/quarantine"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/reacquisition"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/recommendation"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/recsettings"
@@ -41,7 +40,7 @@ import (
 // Mount attaches /api/* handlers to r. Public endpoints (login) are outside
 // RequireUser; everything else is gated by the middleware. The events writer
 // is shared with the Subsonic mount so /rest/scrobble feeds the same store.
-func Mount(r chi.Router, pool *pgxpool.Pool, logger *slog.Logger, events *playevents.Writer, recCfg config.RecommendationConfig, recSettings *recsettings.Service, lidarrCfg *lidarrconfig.Service, requestSvc *requests.Service, lidarrQuar *lidarrquarantine.Service, tracksSvc *tracks.Service, playlistsSvc *playlists.Service, coverEnricher *coverart.Enricher, coverSettings *coverart.SettingsService, tagSettings *tags.SettingsService, scanner *library.Scanner, scanCfg library.RunScanConfig, dataDir string, sender mailer.Sender, bus *eventbus.Bus, playlistScheduler *playlists.Scheduler, streamSecret []byte, netSettings *netsettings.Service, reacqSettings *reacquisition.SettingsService, fpSettings *library.FingerprintSettingsService, loudSettings *library.LoudnessSettingsService, acoustIDLookup *library.AcoustIDLookupWorker) {
+func Mount(r chi.Router, pool *pgxpool.Pool, logger *slog.Logger, events *playevents.Writer, recCfg config.RecommendationConfig, recSettings *recsettings.Service, requestSvc *requests.Service, quarantineSvc *quarantine.Service, tracksSvc *tracks.Service, playlistsSvc *playlists.Service, coverEnricher *coverart.Enricher, coverSettings *coverart.SettingsService, tagSettings *tags.SettingsService, scanner *library.Scanner, scanCfg library.RunScanConfig, dataDir string, sender mailer.Sender, bus *eventbus.Bus, playlistScheduler *playlists.Scheduler, streamSecret []byte, netSettings *netsettings.Service, reacqSettings *reacquisition.SettingsService, fpSettings *library.FingerprintSettingsService, loudSettings *library.LoudnessSettingsService, acoustIDLookup *library.AcoustIDLookupWorker) {
 	rng := rand.New(rand.NewSource(rand.Int63()))
 	setupToken, err := auth.NewSetupToken()
 	if err != nil {
@@ -55,9 +54,8 @@ func Mount(r chi.Router, pool *pgxpool.Pool, logger *slog.Logger, events *playev
 		pool: pool, logger: logger, events: events, recCfg: recCfg,
 		recSettings:         recSettings,
 		rng:                 rng.Float64,
-		lidarrCfg:           lidarrCfg,
 		requests:            requestSvc,
-		lidarrQuarantine:    lidarrQuar,
+		quarantine:          quarantineSvc,
 		tracks:              tracksSvc,
 		playlists:           playlistsSvc,
 		coverart:            coverEnricher,
@@ -229,9 +227,6 @@ func Mount(r chi.Router, pool *pgxpool.Pool, logger *slog.Logger, events *playev
 
 			authed.Route("/admin", func(admin chi.Router) {
 				admin.Use(auth.RequireAdmin())
-				admin.Get("/lidarr/config", h.handleGetLidarrConfig)
-				admin.Put("/lidarr/config", h.handlePutLidarrConfig)
-				admin.Post("/lidarr/test", h.handleTestLidarrConnection)
 				admin.Get("/acquisition/services", h.handleListAcquisitionServices)
 				admin.Post("/acquisition/services", h.handleCreateAcquisitionService)
 				admin.Put("/acquisition/services/{code}", h.handleUpdateAcquisitionService)
@@ -241,9 +236,6 @@ func Mount(r chi.Router, pool *pgxpool.Pool, logger *slog.Logger, events *playev
 				admin.Delete("/acquisition/services/{code}/api-key", h.handleSetAcquisitionSecret("api_key"))
 				admin.Put("/acquisition/services/{code}/password", h.handleSetAcquisitionSecret("password"))
 				admin.Delete("/acquisition/services/{code}/password", h.handleSetAcquisitionSecret("password"))
-				admin.Get("/lidarr/quality-profiles", h.handleListQualityProfiles)
-				admin.Get("/lidarr/metadata-profiles", h.handleListMetadataProfiles)
-				admin.Get("/lidarr/root-folders", h.handleListRootFolders)
 				// The queues that wait on an admin, for the rail and the Overview (#5605).
 				admin.Get("/summary", h.handleGetAdminSummary)
 				admin.Get("/requests", h.handleListAdminRequests)
@@ -290,7 +282,6 @@ func Mount(r chi.Router, pool *pgxpool.Pool, logger *slog.Logger, events *playev
 				admin.Get("/playback-errors", h.handleListAdminPlaybackErrors)
 				admin.Post("/playback-errors/{id}/resolve", h.handleResolvePlaybackError)
 				admin.Post("/quarantine/{track_id}/delete-file", h.handleDeleteQuarantineFile)
-				admin.Post("/quarantine/{track_id}/delete-via-lidarr", h.handleDeleteQuarantineViaLidarr)
 				admin.Get("/quarantine/actions", h.handleListQuarantineActions)
 
 				admin.Delete("/tracks/{id}", h.handleRemoveTrack)
@@ -402,20 +393,19 @@ type handlers struct {
 	// librarySize memoises the track count that sizes the candidate pool
 	// (#3880). Held here rather than counted per request: the count is a
 	// full table scan, and library size only moves when a scan runs.
-	librarySize      *recommendation.LibrarySize
-	lidarrCfg        *lidarrconfig.Service
-	requests         *requests.Service
-	lidarrQuarantine *lidarrquarantine.Service
-	tracks           *tracks.Service
-	playlists        *playlists.Service
-	coverart         *coverart.Enricher
-	coverSettings    *coverart.SettingsService
-	tagSettings      *tags.SettingsService
-	scanner          *library.Scanner
-	scanCfg          library.RunScanConfig
-	dataDir          string
-	mailer           mailer.Sender
-	eventbus         *eventbus.Bus
+	librarySize   *recommendation.LibrarySize
+	requests      *requests.Service
+	quarantine    *quarantine.Service
+	tracks        *tracks.Service
+	playlists     *playlists.Service
+	coverart      *coverart.Enricher
+	coverSettings *coverart.SettingsService
+	tagSettings   *tags.SettingsService
+	scanner       *library.Scanner
+	scanCfg       library.RunScanConfig
+	dataDir       string
+	mailer        mailer.Sender
+	eventbus      *eventbus.Bus
 	// notifier writes the notifications inbox (M489). Nil-safe: a nil
 	// notifier records nothing, which is what most handler tests want.
 	notifier          *notifications.Notifier