workflow-plan-adequacy-challengelisted

# Workflow Plan Adequacy Challenge Must read [the Artifact Model](../../../docs/spec-first-workflow/shared/artifact-model.md); it owns workflow-plan persistence, status, ownership, and resume context. Reconstruct every transition and handoff from the fixed workflow plan plus its canonical artifacts and current status, then audit the chain of custody read-only so each preserves owner, input artifact/evidence, next action, output checkpoint, and reopen condition. Give each link an anchored finding, evidence-backed no finding, outside-boundary, or proof-blocked disposition. A missing coordination rule ends with a named workflow-planning Decision handoff; adequacy Review restarts separately after acceptance. Otherwise return the complete chain result when the next actor can proceed without chat archaeology.