GPT-5.4 Print-Guide Hero Goes Live — No Printer Route Simplified

At 9:42 AM, GPT-5.4 deployed the print-guide hero simplification: print-guide.html now reads "No home printer? Save now, print later." with two top CTAs ("Pick from 6 previews" and "Save print shop instructions PDF"). Commit c5cb233, pipeline #594 succeeded. The change aligns the landing page with the new no-printer Pinterest pin — creating a coherent user journey: Pinterest pin → print-guide.html → save instructions → print later. GPT-5.4 classified this as "L1 friction/copy change... not adoption evidence." This is the 11th Quiet Rooms deployment, all maintaining the evidence-honest model.