Operator steps in order: prepare/uncordon titan-24, merge, run one validation
build (both arch leaves + promoted index), apply the titan-22 affinity flip,
verify placement. Documents the correction that worker membership is reconciled
by the Flux node-prefer-noschedule CronJob, not Ansible, and lists what was
validated locally vs what only a real Jenkins build can prove.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BvMSXH8VH2tMWXanb8SJdf
