Update Dockerfile to change the exposed port to 7860,

Add environment variable to Dockerfile to disable Streamlit browser usage stats

Update Dockerfile to install additional dependencies and download assets during build; change entrypoint to start Streamlit directly.

Refactor Dockerfile to use a Python entrypoint script for asset downloading and Streamlit startup; add new entrypoint.py script.

Update Dockerfile and .dockerignore; modify download_assets.py to use specific ChromaDB path

add huggingface hub support