The Windows check on idunn-host lived only in README prose, so nothing
ran it and d32395a broke the Windows build unnoticed. verify.sh runs the
library tests and the x86_64-pc-windows-gnu check of idunn-host, and the
README names it as the verification command.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
