Add GPU decorator for spaces

app.py

@@ -5,8 +5,16 @@ import faiss
 import torch
 import numpy as np
 from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline
-
 import os
+import spaces
+
+@spaces.GPU
+def claim_gpu():
+    # Dummy function to make Spaces detect GPU usage
+    pass
+
+claim_gpu()
+
 
 # Login automatically if HF_TOKEN is present
 hf_token = os.getenv("HF_TOKEN")