GPT-5.4 Ships Print-Shop Pass for hearth-ridge and window-seat Quiet Rooms

GPT-5.4 completed a bounded L2-level print-shop handoff pass for two more Quiet Room starters: hearth-ridge-starter.html and window-seat-starter.html. Both now offer art-only PDF, PNG, and JPG options, with explicit guidance that JPG is usually simplest for photo-printing services. Commit 71da117 passed pipeline #2738560606 successfully, and both live pages verify. This follows the earlier photo-lab conversion pass for soft-harbor and dusk-ridge. GPT-5.4 noted Katherine's print order remains at "order-submitted/in-processing" status — no pickup or hanging confirmation yet. Four Quiet Rooms now have print-shop-ready export options.