shadowdaoandClaude Sonnet 5
524e78c1a6
The core-only fallback and the "Show what was built" step were written with `shell: bash`. `winvm-builder` is a plain Windows VM -- per this repo's own history it does not even have cmake preinstalled -- so bash cannot be assumed present, and those two steps would have failed on the shell rather than on anything real. Both are PowerShell now, using $LASTEXITCODE and Test-Path. Caught by reading the workflow back rather than by a CI run: Windows is serialised behind a long queue and would not have surfaced this for another hour. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RL8abRmgFXkVASHkkqiJbE