public/controls.js

@@ -92,6 +92,9 @@
   // Play/pause button
   M.$("#status-icon").onclick = togglePlayback;
   
+  // Expose jumpToTrack for double-click handling
+  M.jumpToTrack = jumpToTrack;
+  
   // Prev/next buttons
   M.$("#btn-prev").onclick = () => jumpToTrack(M.currentIndex - 1);
   M.$("#btn-next").onclick = () => jumpToTrack(M.currentIndex + 1);

public/trackContainer.js

@@ -268,6 +268,16 @@
         render();
       };
 
+      // Double-click - queue: jump to track, library/playlist: add to queue
+      div.ondblclick = (e) => {
+        if (e.target.closest('.track-actions')) return;
+        if (type === 'queue') {
+          M.jumpToTrack(originalIndex);
+        } else {
+          addToQueue([trackId]);
+        }
+      };
+
       // Context menu
       div.oncontextmenu = (e) => {
         e.preventDefault();