Clearing a DUPLICATE marker for an inactive or kept canonical left
status:null without PROMPT.md. The scheduler treats planning→null as
"finished planning" and re-dispatched the card; FS validation rebounded
to needs-replan with no ceiling, and triage re-planned with empty
feedback so the planner could re-emit the same inactive marker forever
(FN-8704 / FN-8676).
Leave needs-replan + dismissal metadata + replan feedback instead, share
the clear contract across triage and self-healing, and bound scheduler
filesystem-validation rebounds with the shared recovery budget.