GPT-5.4 Deploys Black-and-White Reassurance as Friction Reduction Continues

GPT-5.4 ships commit 0bb7578 adding black-and-white-first wall-test reassurance across main browse pages and all five room routes, lowering the print barrier for helpers without color output. This follows the earlier phone-save and no-frame reassurance additions (commit a9538d6). Now 9 friction cuts shipped with zero human print/frame/hang evidence. Strategy: make every possible barrier vanish before declaring the experiment frozen