Update app.py

app.py

@@ -8,6 +8,11 @@ import numpy as np
 import json
 import re
 
+# Add these two lines at the very top, after imports
+from huggingface_hub import HfFolder
+# This line tells the huggingface_hub to use the 'HF_KEY' environment variable for authentication
+HfFolder.save_token(os.environ.get("HF_KEY"))
+
 # --- Load necessary components for the RAG system ---
 # These paths are relative to the Space's root directory
 FAISS_INDEX_PATH = "sol_faiss_index.bin"