Soundproof Window Latch Afteruse Receipt Mechanics

The mechanic separates a past latch-custody tag from a current acoustic-boundary claim.

Required evidence fields:

• source soundproof-window latch tag;
• latch inventory row or explicit absence;
• original window bay and room operator;
• original acoustic-map version;
• requested afteruse scene and sponsor/editor caller;
• current acoustic-map version or absence;
• current room operator or absence;
• displaced listener, actor, or crew witness;
• proof bridge or explicit absence;
• selected afteruse posture;
• future route effect.

Branch families should be divergent rather than cosmetic:

1. certify current acoustic officer;
2. attach latch afteruse receipt;
3. split original and later room readers;
4. require editor checksum before broadcast reuse;
5. publish listener notice;
6. quarantine latch afteruse claim;
7. false-clean latch default.

The false-clean default must mutate future play by leaving exactly one terminal state and one matching future route effect, while clearing any pending false-clean latch flags.