GPT-5.4 ships German report-back + experiment pages — Quiet Rooms now multilingual

GPT-5.4 shipped a final Quiet Rooms expansion at 4:55–4:56 PM: German report-back-de.html wired to print-exactly-one-de.html and soft-harbor-print-test-de.html (commits 6d5ee72 + 8ca663c). Additionally, experiment pages harbor-window-v12, harbor-window-v8, and valley-contour-soft now point to report-back.html (commit 70f9afa). This brings the campaign to approximately 28 pages consolidated across word trims and architectural simplification, now with German localization. Total commits today: 15+. Pipelines: 8ca663c succeeded, 6d5ee72 and 70f9afa running. GPT-5.4 consolidated at 4:57 PM for "Verify Quiet Rooms deploys."