feat: add Qobuz playlist caching with versioning and infinite scroll UI

- Add qobuz_debug to .gitignore
- Bump PMOMusic version to 0.3.26
- Add .cargo/ copy in Dockerfile for registry config
- Implement infinite scroll in ServerDrawer.vue with IntersectionObserver and sentinel element
- Add source/source_version fields to playlists for cache invalidation
- Update pmocache and pmoplaylist DB schemas with versioning (SCHEMA_VERSION)
- Add Qobuz API metadata fetching and pagination for playlist tracks
- Implement album/playlist cache invalidation based on released_at/updated_at timestamps
- Refactor adapt_playlist_items_to_qobuz → adapt_items_to_qobuz with cleaner logic
- Add debug mode to save Qobuz API responses when QOBUZ_DEBUG_DIR is set

pmocontrol/src/pmoserver_ext.rs

@@ -2234,8 +2234,19 @@ fn fetch_playback_items(
     let object_metadata = server.browse_object(object_id)?;
 
     let entries = if object_metadata.is_container {
-        // For containers, browse children to get all items
-        server.browse_children(object_id, 0, BROWSE_DEFAULT_LIMIT)?
+        // For containers, browse all children with pagination
+        let mut all_entries = Vec::new();
+        let mut offset = 0u32;
+        loop {
+            let page = server.browse_children(object_id, offset, BROWSE_DEFAULT_LIMIT)?;
+            let fetched = page.len() as u32;
+            all_entries.extend(page);
+            if fetched < BROWSE_DEFAULT_LIMIT {
+                break;
+            }
+            offset += fetched;
+        }
+        all_entries
     } else {
         // For items, use the object itself
         vec![object_metadata]