Update requirements.txt

feat: add local llm

Migration Phase 7: Retrieval Augmented Generation components

Migration Phase 6: Autonomous agent core modules

Migration Phase 5: Web interface implementation

feat: integrate local HF fallback models and enhance Streamlit UI

feat: Add Streamlit UI, Dockerfile, and HF Spaces config

feat: implement AutoStream conversational AI sales agent with LangGraph

feat: implement AutoStream conversational AI sales agent with LangGraph