properly loading .env file with dotenv

services/rag/langchain/cli.py

@@ -1,9 +1,13 @@
 import os
 from pathlib import Path
+from dotenv import load_dotenv
 
 import click
 from loguru import logger
 
+# Load environment variables
+load_dotenv()
+
 
 # Configure logging to output to both file and stdout as specified in requirements
 def setup_logging():