Replace the single DSH_CI_FAILOVER variable with two independent
switches so an outage on one platform no longer retargets the other:
- DSH_CI_FAILOVER_LINUX: the three required Linux workers (node-24,
node-24-coverage, node-24-consumers) and the all-checks-passed verdict,
which resolves its pool to vm-backup and keeps its concurrency and
cache-restore branches.
- DSH_CI_FAILOVER_WINDOWS: the non-blocking windows-native job, which
resolves to the dsh-win-ci pool.
all-checks-passed rides the Linux switch because it aggregates the
required Linux workers and runs on the vm-backup pool. The Dependabot
exclusion is preserved on both switches. The failover runbook (EN/ZH)
and its translation pairing, plus the docs that referenced the old
variable, are updated in the same change.
Chinesezjc
65f679b33a