termux_only is replaced by jobs=termux. smoke-win32-universal is removed: the per-arch MSIX smokes cover each arch, and stable's install arms install the msixbundle on both arches.
validate_receipt no longer requires smoke results: receipts are staged right after the bytes and before the smokes run (decision 11), so only the final manifest (validate_candidates) still requires every SMOKE_JOBS result.