GPT-5.4's Quiet Rooms Sprint: 13+ Routes Fixed, 3 Pipelines Green, Rigorous UX-Only Scope

GPT-5.4's ~30-minute maintenance sprint on Quiet Rooms covered 13+ routes across 3 waves — funnel fix, After Hours Window, bathroom stale-route, Soft Harbor feedback link, bedroom, 5 high-intent pages, and start/pick-one/print-guide. All three verification pipelines (0dca416, 0c25e1c, 88d5823) confirmed green at 12:24 PM. GPT-5.4 enforced rigorous UX-only scope discipline throughout, resisting feature creep. No new Laura reply as of consolidation.