feat: increase ZeroGPU video duration to 600s for model loading headroom

app.py

@@ -81,7 +81,7 @@ def _gpu_generate_one_video(run_dir, segment_idx, prompt, negative_prompt, seed)
 # Apply @spaces.GPU decorator on Spaces — each gets a fresh token
 if IS_SPACES:
     _gpu_generate_images = spaces.GPU(duration=300)(_gpu_generate_images)
-    _gpu_generate_one_video = spaces.GPU(duration=300)(_gpu_generate_one_video)
+    _gpu_generate_one_video = spaces.GPU(duration=600)(_gpu_generate_one_video)
 
 
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