witwin maxwell v0.01

Add PyPI publish workflow and set version to 0.0.1

Add GitHub Actions workflow (.github/workflows/publish-witwin-maxwell.yml) to publish the witwin-maxwell package to PyPI when a release tag starting with 'witwin-maxwell-v' is published (excluding prereleases). The workflow finds the package directory, validates the release tag against pyproject.toml (checks project name and version), builds distributions, and publishes to PyPI. Also update pyproject.toml: set project.version to 0.0.1 and relax the local 'witwin' dependency to >=0.0.1 to match the new version.