fix: skip null album entries in subsonic pagination

server/src/subsonic.ts

@@ -85,6 +85,7 @@ export class SubsonicClient {
       })
       const list: any[] = envelope.albumList2?.album ?? []
       for (const a of list) {
+        if (!a || a.id == null) continue
         all.push({ id: String(a.id), title: a.name ?? a.title ?? '', artist: a.artist ?? '' })
       }
       onProgress?.(all, all.length)