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/db/dbq/reacquisition.sql.go

@@ -212,7 +212,7 @@ 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
+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
 `
 
 type WantMissingAlbumParams struct {
@@ -249,6 +249,12 @@ func (q *Queries) WantMissingAlbum(ctx context.Context, arg WantMissingAlbumPara
 		&i.FulfilledAt,
 		&i.CreatedAt,
 		&i.UpdatedAt,
+		&i.SearchedAt,
+		&i.SearchOutcome,
+		&i.SearchConsidered,
+		&i.BestRelease,
+		&i.BestVerdict,
+		&i.SearchError,
 	)
 	return i, err
 }