Update rag_chain.py

app/rag_chain.py

@@ -1,6 +1,7 @@
 # rag_chain.py
 import os
 import weaviate
+from weaviate.classes.init import Auth
 from langchain.embeddings import HuggingFaceEmbeddings  # 필요 시 HuggingFaceEmbeddings로 교체 가능
 from langchain.vectorstores import Weaviate
 from langchain.chains import RetrievalQA