feat: search and grab — music release names, a quality ladder, a paced search schedule and one live grab per want (M502 #5521)

- internal/release: reads a release name (format, bitrate, bit depth and
  sample rate, source, year, video, discography) and judges it against the
  album wanted: the artist and title must be in it; video rips,
  discographies, other versions (drumless, instrumental, karaoke, remix,
  live unless the album is live…) and singles or EPs for an album are
  refused. Quality tiers on Lidarr's ladder; a .torrent's file list is read
  for format, video files and a track count short of the album.
- internal/acquire: fan-out across every search source with a narrowed
  search kept, a process-wide pacer per source, every candidate judged and
  kept with its reasons, and the grab: one live grab per want, tie-broken
  (a person's grab beats the schedule's; a better release replaces a worse
  one unless it is nearly done). Each download lands in its own folder
  under the client's downloads folder.
- internal/wanted: the search schedule, every ten minutes, never-searched
  first, then requests, missing files and followed artists, taking the
  best release when auto-grab is on (the default).
- Migration 0082: acquisition_settings (auto-grab, interval, allowed
  qualities seeded from Lidarr's "Any"), want search columns,
  want_candidates, grabs, release_blocks.
- Web: the Wanted page shows each want's last search, a Search button and
  every release found with its verdict (Grab, Grab anyway, Never this one,
  Allow again). Integrations gains "Searching and grabbing".

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

internal/api/admin_wanted.go

@@ -35,6 +35,25 @@ type wantView struct {
 	WantedAt         string   `json:"wanted_at"`
 	HeldAt           *string  `json:"held_at"`
 	ImageURL         string   `json:"image_url"`
+	// Search is the schedule's last look; Grab the download running (#5521).
+	Search *wantSearchView `json:"search"`
+	Grab   *wantGrabView   `json:"grab"`
+}
+
+type wantSearchView struct {
+	SearchedAt  string `json:"searched_at"`
+	Outcome     string `json:"outcome"`
+	Considered  int32  `json:"considered"`
+	BestRelease string `json:"best_release"`
+	BestVerdict string `json:"best_verdict"`
+	Error       string `json:"error"`
+}
+
+type wantGrabView struct {
+	Name      string `json:"name"`
+	GrabbedAt string `json:"grabbed_at"`
+	Origin    string `json:"origin"`
+	Quality   string `json:"quality"`
 }
 
 // wantCounts sizes each tab of the Wanted page.
@@ -118,6 +137,22 @@ func (h *handlers) handleListWants(w http.ResponseWriter, r *http.Request) {
 		if v.SecondaryTypes == nil {
 			v.SecondaryTypes = []string{}
 		}
+		if row.SearchedAt.Valid {
+			v.Search = &wantSearchView{
+				SearchedAt: formatTimestamp(row.SearchedAt), Outcome: row.SearchOutcome,
+				Considered: row.SearchConsidered, BestRelease: row.BestRelease,
+				BestVerdict: row.BestVerdict, Error: row.SearchError,
+			}
+		}
+		if row.GrabName != nil {
+			v.Grab = &wantGrabView{Name: *row.GrabName, GrabbedAt: formatTimestamp(row.GrabbedAt)}
+			if row.GrabOrigin != nil {
+				v.Grab.Origin = *row.GrabOrigin
+			}
+			if row.GrabQuality != nil {
+				v.Grab.Quality = *row.GrabQuality
+			}
+		}
 		out.Items = append(out.Items, v)
 	}
 	writeJSON(w, http.StatusOK, out)