fix: skip null album entries in subsonic pagination

server/test/subsonic.test.ts

@@ -96,4 +96,26 @@ describe('SubsonicClient', () => {
     await c.getAllAlbums((_albums, done) => progress.push(done))
     expect(progress[progress.length - 1]!).toBe(503)
   })
+
+  it('getAllAlbums skips null album entries', async () => {
+    const c = new SubsonicClient({
+      url: 'http://x',
+      username: 'sam',
+      password: 'pass',
+      fetchImpl: (async () =>
+        subsonicResponse({
+          'subsonic-response': {
+            status: 'ok',
+            albumList2: {
+              album: [{ id: 1, name: 'Album 1', artist: 'Artist 0' }, null, { id: 2, name: 'Album 2', artist: 'Artist 0' }],
+            },
+          },
+        })) as typeof fetch,
+    })
+    const albums = await c.getAllAlbums()
+    expect(albums).toEqual([
+      { id: '1', title: 'Album 1', artist: 'Artist 0' },
+      { id: '2', title: 'Album 2', artist: 'Artist 0' },
+    ])
+  })
 })