Why: task-sync advanced the Dev backend gitlink past the RDM pin; a newer-schema user-create CLI migrates the fresh store beyond what the RDM binary (schema ceiling of its pin) can open.
Evidence: reproduce on 20261011-180439 run (v25 store vs v24 binary); rerun green recorded after this change.
Impact: scripts/e2e.sh only; seeding and serving now share one base version.