v0.4.1

Production version from 2023/204 with minor tweaks:

• client code regenerated and patched with './scripts/generate_client.sh'
• license change
• README.md updated to state in production
• README.md updated to explain /patch and why it (can't) doesn't pass testing

The original production version was sitting on a develop branch at commit 7262853, presumably pending some linting and github action implementation.