Restore the Wine-emulated windows job as the required pull-request
Windows signal. Add DSH_CI_FAILOVER switch to windows-native so it
retargets onto the self-hosted [self-hosted, dsh-win-ci, windows]
pool under failover. Enable serial-windows as a master-only
self-hosted standby mirroring serial-linux-selfhosted.
The windows-native job remains absent from all-checks-passed.needs —
Wine owns the required verdict, native Windows reports independently.
Restore wine-apt-cache, wine-windows-gates.sh, check:windows-wine
script, and the original Agent Note topology.