Add @spaces.GPU to detect_pose_video

app.py

@@ -173,6 +173,10 @@ def detect_pose_image(
     return annotated_frame, human_readable_results
 
 
+# Decorate this function with `@spaces.GPU` to ensure that ZeroGPU is allocated once for the entire video processing.
+# Although `detect_pose_image` (called per frame) is already decorated, without this decorator, ZeroGPU would be invoked for each frame,
+# causing significant overhead and slowdowns. By decorating this function, all frames are processed sequentially after a single GPU allocation.
+@spaces.GPU(duration=90)
 def detect_pose_video(
     video_path: str,
     threshold: float,