Update app.py

app.py

@@ -4,6 +4,12 @@ from langchain_community.vectorstores import FAISS
 from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain.prompts import PromptTemplate
 from huggingface_hub import hf_hub_download
+import os
+from huggingface_hub import login
+
+hf_token = os.environ["HF_TOKEN"]
+login(token=hf_token)
+
 
 # Carica modello GRPO fine-tuned
 model_name = "SelmaNajih001/GRPORagMinstral2"