The deployed toolbox Core.dll was timestamped BEFORE its own build ran -- the CI runner's
incremental build reused a cached SilverOS.Welcome.Core.dll, so source fixes (e.g. the winget
bootstrap brace fix) never reached the published exe. Wipe all bin/obj under welcome/ and pass
--no-incremental so every build is a clean compile.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>