fastapi==0.109.2 uvicorn==0.27.1 gradio==3.50.2 rich==13.7.0 numpy==1.26.4 python-dotenv==1.0.1 langchain==0.1.14 langchain-core==0.1.33 langchain-community==0.0.29 langchain-openai==0.1.1 langchain-huggingface==0.0.7 langchain-nvidia-ai-endpoints==0.0.4 sentence-transformers==2.5.1 faiss-cpu==1.8.0 transformers==4.39.3 scikit-learn==1.4.1.post1 rank-bm25==0.2.2