feat: a wanted list — follow artists on release-type profiles; requests and re-acquisition become wants (M502 #5520)

Minstrel keeps its own list of what it is to get, keyed by MusicBrainz
release group. A want comes from an approved request, a new release by a
followed artist, or an album whose files went missing, and is held once the
library has a full edition of it.

- Migration 0081: release_type_profiles (Standard seeded: Album, EP,
  Single, studio only), follows, follow_seen_groups and wants.
  lidarr_requests becomes requests with plain *_mbid columns; approved
  album and track requests move onto the wanted list, approved artist
  requests become follows, and the library's album artists start out
  followed. missing_reacquisitions and the retry settings go.
- internal/wanted: follows are checked against MusicBrainz discographies
  daily. The first check sets a baseline, and only releases after it are
  wanted unless the follow asked for what already exists. Profiles filter
  by primary and secondary type, so live recordings stay out unless a
  profile ticks Live.
- internal/requests (was lidarrrequests): approving puts the request on
  the wanted list, and an artist request can be approved on a chosen
  profile. A request completes when its want is held.
- The re-acquisition sweeper wants a missing album back instead of asking
  Lidarr; searching for it is the search schedule's (#5521).
- Web: an admin Wanted page (Wanted, Missing files, Held, Following), a
  follow control on artist pages, a release-type profiles card on
  Integrations, "Approve on a profile" on Requests, and want state on
  Missing files. The artist detail API returns the artist's MBID.
- Android: the request body sends artist_mbid, album_mbid and track_mbid.

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

internal/server/server.go

@@ -23,13 +23,13 @@ import (
 	"git.fabledsword.com/bvandeusen/minstrel/internal/lidarr"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrconfig"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrquarantine"
-	"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrrequests"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/mailer"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/netsettings"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/playevents"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/playlists"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/reacquisition"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/recsettings"
+	"git.fabledsword.com/bvandeusen/minstrel/internal/requests"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/subsonic"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/tags"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/tracks"
@@ -171,7 +171,7 @@ func (s *Server) Router() http.Handler {
 			}
 			return lidarr.NewClient(cfg.BaseURL, cfg.APIKey)
 		}
-		lidarrReqs := lidarrrequests.NewService(s.Pool, lidarrCfg, lidarrClientFn, nil)
+		requestSvc := requests.NewService(s.Pool)
 		reacqSettings := s.ReacqSettings
 		if reacqSettings == nil {
 			// Test contexts construct Server without main.go's boot wiring.
@@ -190,7 +190,7 @@ func (s *Server) Router() http.Handler {
 		playlistsSvc := playlists.NewService(s.Pool, s.Logger, s.DataDir)
 		smtpSender := mailer.NewSMTPSender(s.Pool, s.Logger.With("component", "mailer"))
 		// Live-event bus for SSE subscribers (#392). Constructed per-process;
-		// producers in playevents / lidarrrequests / scanner publish into
+		// producers in playevents / requests / scanner publish into
 		// the same instance. Background workers (lidarr reconciler, scan
 		// scheduler) live in cmd/minstrel/main.go where they're constructed
 		// before Router() runs; they read s.Bus directly so they share this
@@ -237,7 +237,7 @@ func (s *Server) Router() http.Handler {
 			}
 			acoustIDLookup = library.NewAcoustIDLookupWorker(s.Pool, s.Logger, acoustIDSettings, nil)
 		}
-		api.Mount(r, s.Pool, s.Logger, writer, s.RecommendationCfg, recSettings, lidarrCfg, lidarrReqs, lidarrQuar, tracksSvc, playlistsSvc, s.CoverEnricher, s.CoverSettings, s.TagSettings, s.LibraryScanner, s.ScanCfg, s.DataDir, smtpSender, bus, s.PlaylistScheduler, s.StreamSecret, netSettings, reacqSettings, fpSettings, loudSettings, acoustIDLookup)
+		api.Mount(r, s.Pool, s.Logger, writer, s.RecommendationCfg, recSettings, lidarrCfg, requestSvc, lidarrQuar, tracksSvc, playlistsSvc, s.CoverEnricher, s.CoverSettings, s.TagSettings, s.LibraryScanner, s.ScanCfg, s.DataDir, smtpSender, bus, s.PlaylistScheduler, s.StreamSecret, netSettings, reacqSettings, fpSettings, loudSettings, acoustIDLookup)
 		// /api/admin/scan is the only admin route owned by the server package
 		// (it needs the Scanner). Register it as a single inline-middleware
 		// route — using r.Route("/api/admin", ...) here would create a second

internal/server/server_test.go

@@ -316,13 +316,9 @@ func TestRouter_ReacquisitionSettingsSavedThroughTheAPIReachTheSweeper(t *testin
 	defer ts.Close()
 
 	body, err := json.Marshal(map[string]any{
-		"enabled":            before.Enabled,
-		"grace_hours":        wantGrace,
-		"backoff_base_hours": before.BackoffBaseHours,
-		"backoff_max_hours":  before.BackoffMaxHours,
-		"max_attempts":       before.MaxAttempts,
-		"max_per_pass":       before.MaxPerPass,
-		"auto_approve":       before.AutoApprove,
+		"enabled":      before.Enabled,
+		"grace_hours":  wantGrace,
+		"max_per_pass": before.MaxPerPass,
 	})
 	if err != nil {
 		t.Fatalf("marshal: %v", err)