RUNBOOK.md: the single doc the operator follows in the authorized window. Pilot gate on graceful-handoff with the B3 ordering fix (flip the catalog entry to external BEFORE the install-smoke, else the Forgejo/HTTPS/ref chain is untested). Forgejo repo creation via API (auto_init:false, public), per-repo create->push->flip->install-smoke loop, batch order (design-system -> high-churn -> low-churn), thin-catalog last, ref-update flow, and a reversible-until-thinning rollback. References the prior scripts; push-window-aware.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Kjell Tore Guttormsen
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