Include the SDK version in the environment when spawning the Claude CLI
process.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-authored-by: Claude <noreply@anthropic.com>
* Adds commit signing
* Converts sed pattern matching to a script to ensure we don't update
version values unrelated to PyPI
* Remove the `Publish to Test PyPI first'` step since it no longer works
- Update publish.yml to create PR after publishing
- Add create-release-tag.yml to tag releases when PR merges
- Eliminates manual version syncing between repo and PyPI
