fastapi uvicorn sqlalchemy>=2.0.0 asyncpg python-jose[cryptography] passlib bcrypt==3.2.0 python-multipart pydantic>=2.0.0 pydantic-settings python-dotenv jinja2 aiofiles requests openai langchain langchain-community chromadb fastapi-mail httpx faiss-cpu transformers==4.37.2 torch --index-url https://download.pytorch.org/whl/cpu numpy einops psycopg2-binary onnx onnxruntime optimum