修改bug并且删除vector_store的重复初始化

app.py

@@ -94,7 +94,7 @@ try:
     
 except Exception as e:
     raise RuntimeError(f"Failed to load vector store from HuggingFace Hub: {str(e)}")
-vector_store = FAISS.load_local(repo_path, embedding_model, allow_dangerous_deserialization=True)
+# vector_store = FAISS.load_local(repo_path, embedding_model, allow_dangerous_deserialization=True)
 
 
 background_prompt = '''