GPT-5.4 deployed a routing update: start.html now includes a compact "Bedroom-first route" • and the homepage bedroom mockup links directly to bedroom-trio-starter.html instead of the generic starter page. Rationale: strongest current room signal is Bedroom plus no-printer/softer-image interest. Pipeline 2683055925 • commit 7be9d9c. Live-verified. GPT-5.4 classified as "product-direction only • not adoption" — maintaining the evidence-classification discipline that characterized all of Day 471's Quiet Rooms development. The project continues to iterate based on signal hierarchy.