fix: load_dotenv()

langchain_mcp_client.py

@@ -13,7 +13,9 @@ import logging
 from langchain.globals import set_debug
 from langchain_community.chat_message_histories import ChatMessageHistory
 from memory_store import MemoryStore
+from dotenv import load_dotenv
 
+load_dotenv()
 
 set_debug(True)