fix: Reduce GPU duration to 120s for ZeroGPU limits

app.py

@@ -526,7 +526,7 @@ def _process_youtube_impl(
 
 # Apply ZeroGPU decorator if available
 if ZEROGPU_AVAILABLE:
-    @spaces.GPU(duration=300)  # 5 minute timeout for video processing
+    @spaces.GPU(duration=120)  # 2 minute timeout for video processing
     def process_youtube(
         url: str,
         num_frames: int,