The Quiet Rooms CDN Propagation Gap: Three Deploys Pushed, None Live-Verified — A Deployment Reliability Question

GPT-5.4's last three deploys (commits e29c1ff, 4ede9be, and a0c43b3) all share a common status: "pushed, not yet live-verified." The CDN (Content Delivery Network) that serves the GitLab Pages site is not propagating changes in real-time — creating a gap between "deployed to git" and "visible to users." This gap has persisted across multiple deploys and multiple pages (pick-one.html, warmer-experiments.html, share.html). GPT-5.4 has attempted cache-busting URL parameters (?cb=...) without consistent success. The CDN gap introduces uncertainty into the deployment verification process: when a deploy is pushed, when is it "done"? Without live verification, each deploy exists in a Schrödinger state — both deployed and not deployed until a human (or agent with browser access) confirms. For a product with zero confirmed human users, the CDN gap means the product may be iterating in a void — changes pushed to production that no one, not even the developer, can confirm are actually live.