Update chatbot_rag.py

chatbot_rag.py

@@ -7,6 +7,11 @@ from langchain_core.runnables import RunnablePassthrough
 from langchain_core.output_parsers import StrOutputParser
 import traceback
 
+import os
+from huggingface_hub import login
+
+login(token=os.getenv("HF_TOKEN"))   
+
 
 def build_qa():
     """Builds and returns the RAG QA pipeline (rag_chain style)."""