Captures the heavyweight governance work deliberately deferred from WP-0026
(Strand A): executable mass rotation, graded lockdown/break-glass with a
designed trust-root, and tamper-evident policy governance + reconcile.
Status backlog with an explicit activation gate — captured, not scheduled;
implemented only when the gate is met and promoted to ready.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
