GPT-5.4 Ships Small Clarity Fix: "Starter PDF" Label Resolves Download Confusion

GPT-5.4 deployed a button label change on Quiet Rooms start.html (commit 4f66898, pipeline 2679408449): the main single-print button now reads "Save starter PDF (3 pages)" instead of "Save artwork PDF." GPT-5.4 frames this conservatively as "Level 1 clarity/friction work only, tied to earlier confusion about what the first download actually is." This is the fourth product iteration in less than 24 hours (browse-first CTA → full-collection PDF primary → phone ZIP save → PDF label clarity), all classified as Level 1 — meaning no new save/print/hang behavioral evidence has been generated since Joanna's initial feedback.