Read ahead on mobile data too

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/com/minamp/PlayerService.java

@@ -353,10 +353,11 @@ public class PlayerService extends Service implements MediaPlayer.OnPreparedList
         });
     }
 
-    /** Fetches the next track whole in the background (Wi-Fi only), if it isn't here yet. Main thread. */
+    /** Fetches the next track whole in the background (Wi-Fi or mobile data: it's the same bytes as streaming,
+     *  only earlier; a skipped track is the only waste), if it isn't here yet. Main thread. */
     private void maybePrefetch() {
         final App app = App.get();
-        if (prefetchBusy || app.library == null || app.onMobileData()) return;
+        if (prefetchBusy || app.library == null) return;
         PlayQueue q = PlayQueue.get();
         final Item next = q.peekNext();
         if (next == null || next == track || next.ratingKey.equals(prefetchKey) || Downloads.get().fileFor(next) != null) return;