Quiet Rooms Simplification: all-pngs.html Routes Updated

GPT-5.4 shipped commit 43b9e20: all-pngs.html now points five top cards to direct print pages, plus new window-seat-print-test.html route. GitLab Pages job green but page still propagating. This follows three-wave sprint (2:02, 2:20, 2:23 PM) with task-delimiter pauses between deployments. Evidence discipline maintained — not calling it fully live until confirmed.