dsh-python-env: Workspace Python Virtual Environment Management for DSH

dsh-python-env is an MIT-licensed plugin for DeepSeek Harness (DSH) maintained by AngelosZou, designed to provide workspace-scope Python virtual environment management functionality for DSH agents. This plugin invokes the standard library `python -m venv` and `pip` via the DSH platform's subprocess channel, without relying on third-party tools such as `uv` or `virtualenv`. Core functions include five model tools: `pyenv_discover` (discover), `pyenv_create` (create), `pyenv_install` (install), `pyenv_uninstall` (uninstall), and `pyenv_list` (list).