python-dotenv==1.0.1 streamlit==1.37.0 langchain-community==0.2.10 langchain-text-splitters==0.2.2 langchain-groq==0.1.9 unstructured==0.15.0 unstructured[pdf]==0.15.0 faiss-gpu transformers==4.43.3 sentence-transformers==3.0.1 nltk==3.8.1