fix(library): harden cross-source catalog data

Preserve per-disc and collection artwork, multi-value genres and remote metadata across Local, Plex, Jellyfin and Subsonic.

Apply source, format and quality filters before pagination, reject invalid CUE rows, and keep Qt library surfaces aligned with the selected physical version.

cx

crates/qbz-mixtape/src/enqueue.rs

@@ -93,7 +93,10 @@ pub fn shuffle_items(mut items: Vec<MixtapeCollectionItem>) -> Vec<MixtapeCollec
 pub fn next_item_index(queue: &[CoreQueueTrack], current: usize) -> Option<usize> {
     let boundary_of = |i: usize| -> Option<&str> {
         queue.get(i).and_then(|track| {
-            track.source_item_id_hint.as_deref().or(track.album_id.as_deref())
+            track
+                .source_item_id_hint
+                .as_deref()
+                .or(track.album_id.as_deref())
         })
     };
     let current_boundary = boundary_of(current)?;
@@ -127,9 +130,7 @@ pub fn previous_item_index(
     let current_boundary = boundary_of(current)?;
 
     let mut item_start = current;
-    while item_start > 0
-        && boundary_of(item_start - 1) == Some(current_boundary.clone())
-    {
+    while item_start > 0 && boundary_of(item_start - 1) == Some(current_boundary.clone()) {
         item_start -= 1;
     }
 
@@ -236,7 +237,10 @@ pub async fn resolve_qobuz_album(
     // Build QueueTrack from each track. We have the parent Album in scope so
     // we can fill artwork / album title / album artist even when the track's
     // own `album` field is absent (shallow responses inside albums/get).
-    let album_artwork = album.image.large.clone()
+    let album_artwork = album
+        .image
+        .large
+        .clone()
         .or_else(|| album.image.extralarge.clone())
         .or_else(|| album.image.thumbnail.clone());
     let album_title = album.title.clone();
@@ -376,7 +380,10 @@ pub fn resolve_plex_album_tracks(group_key: &str) -> Result<Vec<CoreQueueTrack>,
             group_key
         ));
     }
-    Ok(tracks.iter().map(plex_cached_track_to_queue_track).collect())
+    Ok(tracks
+        .iter()
+        .map(plex_cached_track_to_queue_track)
+        .collect())
 }
 
 // ── Local track (synchronous) ──
@@ -436,7 +443,12 @@ pub fn track_to_queue_track_from_api(track: &ApiTrack) -> CoreQueueTrack {
         .as_ref()
         .and_then(|a| a.image.large.clone())
         .or_else(|| track.album.as_ref().and_then(|a| a.image.thumbnail.clone()))
-        .or_else(|| track.album.as_ref().and_then(|a| a.image.extralarge.clone()));
+        .or_else(|| {
+            track
+                .album
+                .as_ref()
+                .and_then(|a| a.image.extralarge.clone())
+        });
     let artist = track
         .performer
         .as_ref()
@@ -495,7 +507,10 @@ pub fn plex_cached_track_to_queue_track(track: &qbz_plex::PlexCachedTrack) -> Co
         album: track.album.clone(),
         album_version: None,
         duration_secs: track.duration_secs,
-        artwork_url: track.artwork_path.clone(),
+        artwork_url: track
+            .artwork_path
+            .clone()
+            .or_else(|| track.collection_artwork_path.clone()),
         hires: track.bit_depth.map(|d| d > 16).unwrap_or(false),
         bit_depth: track.bit_depth,
         sample_rate: sample_rate_khz,
@@ -657,7 +672,10 @@ mod tests {
         assert_eq!(tracks[0].source_item_id_hint.as_deref(), Some("a-1"));
         assert_eq!(tracks[2].source_item_id_hint.as_deref(), Some("a-1"));
         assert_eq!(tracks[3].source_item_id_hint.as_deref(), Some("t-99"));
-        assert_eq!(tracks[4].source_item_id_hint.as_deref(), Some("al-local-xyz"));
+        assert_eq!(
+            tracks[4].source_item_id_hint.as_deref(),
+            Some("al-local-xyz")
+        );
     }
 
     #[tokio::test]
@@ -668,8 +686,7 @@ mod tests {
             item(2, ItemType::Album, AlbumSource::Qobuz, "a-3", 3),
         ];
         let tracks =
-            resolve_collection_tracks(items, CollectionPlayMode::AlbumShuffle, &MockResolver)
-                .await;
+            resolve_collection_tracks(items, CollectionPlayMode::AlbumShuffle, &MockResolver).await;
         assert_eq!(tracks.len(), 9);
         // Each album's tracks must be contiguous (no interleaving).
         let mut i = 0;
@@ -682,9 +699,7 @@ mod tests {
                 h
             );
             seen.insert(h.clone());
-            while i < tracks.len()
-                && tracks[i].source_item_id_hint.as_deref() == Some(&h)
-            {
+            while i < tracks.len() && tracks[i].source_item_id_hint.as_deref() == Some(&h) {
                 i += 1;
             }
         }