feat: matchedAlbum on item detail, onLoan collection filter

server/src/ripstatus.ts

@@ -62,3 +62,37 @@ export function resolveRipStatusBatch(
     return albumKeys.has(key) ? 'ripped' : 'not_ripped'
   })
 }
+
+export interface MatchedAlbum {
+  id: number
+  subsonicId: string
+  lastPlayedAt: string | null
+}
+
+/** Album behind an item's rip match — link wins, else confident fuzzy match. Independent of rip_override. */
+export function findMatchedAlbum(db: DB, userId: number, itemId: number): MatchedAlbum | null {
+  const item = db
+    .prepare('SELECT id, title, artist FROM collection_items WHERE id = ? AND user_id = ?')
+    .get(itemId, userId) as { id: number; title: string; artist: string } | undefined
+  if (!item) return null
+
+  const link = db
+    .prepare(
+      `SELECT da.id, da.subsonic_id, da.last_played_at FROM match_links ml
+       JOIN digital_albums da ON da.id = ml.album_id WHERE ml.item_id = ?`
+    )
+    .get(itemId) as { id: number; subsonic_id: string; last_played_at: string | null } | undefined
+  if (link) {
+    return { id: link.id, subsonicId: link.subsonic_id, lastPlayedAt: link.last_played_at }
+  }
+
+  const album = db
+    .prepare(
+      `SELECT id, subsonic_id, last_played_at, title, artist FROM digital_albums WHERE user_id = ?`
+    )
+    .all(userId) as { id: number; subsonic_id: string; last_played_at: string | null; title: string; artist: string }[]
+  const match = album.find((a) => isConfidentMatch(item, a))
+  return match
+    ? { id: match.id, subsonicId: match.subsonic_id, lastPlayedAt: match.last_played_at }
+    : null
+}