publish.sh takes a runtime id and publishes both programs into
dist/nonemm-<rid>, which holds the runtime and the Avalonia files once.
The archive is a zip for Windows and a tar.gz for the rest.
publish-windows.sh and publish-linux.sh call it with their default id.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
