Prop-Room Key Afteruse Receipt Mechanics

The mechanic opens from state pressure: a future route tries to consume a prior prop-room key row while the keyed room, holder, lock version, proof bridge, or harmed performer/stagehand is missing or changed.

The review is not turn-triggered. It requires visible key provenance and offers branches for certifying original scope, restricting the future reader, attaching locksmith evidence, reopening harmed stagehands, splitting access from custody/consent, quarantining afteruse, or accepting a false clean default.