Prepare PyPI release workflow

[zc277584121]

Summary

• rename the Python distribution package to mfs-cli while keeping the mfs CLI command
• add lint, test, and release workflows for PyPI publishing
• update install documentation and optional dependency hints
• read the CLI version from package metadata

Test

• uv run ruff check src/ tests/
• uv run pytest
• uv run mkdocs build --strict
• uv build
• uv run --isolated --with ./dist/mfs_cli-0.1.0-py3-none-any.whl mfs --version
• uv run --isolated --with ./dist/mfs_cli-0.1.0-py3-none-any.whl mfs --help