Dynamically constructed Dockerfile

This folder builds a runtime image (sandbox), which will use a dynamically generated Dockerfile that depends on the base_image AND a Python source distribution that is based on the current commit of openhands.

The following command will generate a Dockerfile file for nikolaik/python-nodejs:python3.12-nodejs22 (the default base image), an updated config.sh and the runtime source distribution files/folders into containers/runtime:

poetry run python3 openhands/runtime/utils/runtime_build.py \
    --base_image nikolaik/python-nodejs:python3.12-nodejs22 \
    --build_folder containers/runtime