Replace the Wine-emulated windows job and the independent windows-native
job with a single required native Windows job that runs
check:ci:windows-complete on the hosted larger runner, falling back to
the self-hosted [self-hosted, dsh-win-ci, windows] pool under failover
(DSH_CI_FAILOVER=selfhosted). The serial-windows standby mirrors
serial-linux-selfhosted: master-only, unsharded, self-hosted, absent
from all-checks-passed.
Remove wine-apt-cache, the check:windows-wine script reference, and the
dual-lane topology the two Windows notes described.
The required windows job moves from windows-2025 to ubuntu-latest, running
checksum-verified Windows Node under Wine at Linux-job wall clock (2m46s
warm vs 7-9min); master's serial-windows native-kernel reference is
untouched, and a new master-only wine-apt-cache job seeds the apt cache
every pull request restores. The experiment workflow folds into ci.yml,
the Agent Note moves to implemented with measured results, and the two CI
topology notes update to the shipped facts.
Chinesezjc