Implement RMGR-WP-0004 T01 (flavor, required files, anti-patterns from
canon) and T08 (prefix ownership registry plus uniqueness scan).
rmgr conform and rmgr prefix-uniqueness are detection only.
Add the §0 playbook and kubernetes-then-knative gate to the guide.
Implement rmgr rapp skeleton/wrap/place, draft postgres consumers,
and copy the fleet image workflow when missing.
Add dual-run flags/meter, harden task-status (idempotency, UUID, head,
push), State Hub adapter for PATCH /tasks and C-15/reconcile proxy, pilot
evidence, and finish RMGR-WP-0002.
Implement observe/reconcile/update-task-status CLI path: workplan parse,
JSON projection index, git-backed task status writeback with correlation
events, and E2E pytest plus evidence artifacts. Finish foundation workplan.