The forge runner is Ubuntu-only (Docker, one job), so Windows jobs queued on
push and pull_request can never run.
- cultnet-interop: the whole job is Windows-only; trigger is now workflow_dispatch.
- cultmesh-portability: both matrices keep windows-latest on workflow_dispatch
and run ubuntu-latest alone on push and pull_request.
- quic-native: unchanged; Build win32-x64 already runs only on dispatch or a tag.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>