Fix warnings and update tracability

src/lib/components/library/TrackList.logic.test.ts

@@ -322,16 +322,10 @@ describe("TrackList Logic Tests", () => {
     it("should invoke player when no custom callback", async () => {
       const invokeMock = (invoke as any).mockResolvedValue(undefined);
 
-      // Simulate unified handler without custom callback
-      const onTrackClick = undefined;
-      if (onTrackClick) {
-        await onTrackClick(mockTracks[0], 0);
-      } else {
-        // This branch executes - default handler
-        await invoke("player_play_queue", {
-          request: { items: [], startIndex: 0, shuffle: false },
-        });
-      }
+      // Simulate unified handler without custom callback - default handler runs
+      await invoke("player_play_queue", {
+        request: { items: [], startIndex: 0, shuffle: false },
+      });
 
       expect(invokeMock).toHaveBeenCalled();
     });