staging-v25.2.8: release-25.2: server: return draining progress if the server controller is draining#156312

celiala merged 1 commit intostaging-v25.2.8cockroachdb/cockroach:staging-v25.2.8from

blathers/backport-staging-v25.2.8-155640cockroachdb/cockroach:blathers/backport-staging-v25.2.8-155640Copy head branch name to clipboard