Add spaces GPU decorator for Hugging Face deployment

- Added spaces package to requirements.txt
- Imported spaces module in app.py
- Decorated generate_interpolation with @spaces.GPU

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app.py

@@ -2,6 +2,7 @@ import os
 import tempfile
 
 import gradio as gr
+import spaces
 import torch
 from diffusers.utils import export_to_video
 from PIL import Image
@@ -38,6 +39,7 @@ def load_model(model_path):
     return "✓ Model loaded successfully!"
 
 
+@spaces.GPU
 def generate_interpolation(
     first_image,
     last_image,

requirements.txt

@@ -3,4 +3,5 @@ transformers==4.44.2
 accelerate==0.34.0
 torch>=2.0.0
 torchvision
-Pillow
+Pillow
+spaces