| import os | |
| from pathlib import Path | |
| from dotenv import load_dotenv, find_dotenv | |
| # Load environment variables from .env file in project root | |
| load_dotenv(find_dotenv()) | |
| if os.getenv("OPENAI_API_KEY") is None: | |
| raise ValueError("OPENAI_API_KEY is not set") | |