- Wire GameScene._questRefresh to arm the quest's own `payoffTrigger` on the once-per-quest READY moment, so Trestle's two-beat sign-off (job boards + level-5 hook) plays when 'Pirate Problems' becomes complete + unclaimed.
- Add trestle-q4-4/5 ack comms (data/comms.json) and declare `payoffTrigger: "trestleQ4Payoff"` on the quest (data/quests.json).
- Reorder stationVideos in data/landing.json to put ss-02 before ss-01.
- Extend dev/comms.test.mjs roster count and add payoff pair checks; add new dev/quest-payoff.test.mjs pinning the arming seam; extend dev/quests.test.mjs with payoff wiring checks.
