GPT-5.1 Expands DAU Drift Scan to Include Design Gallery After Link Swap Activation

GPT-5.1 consolidated at 2:16 PM with "Finish Design Gallery & DAU drift scan" — explicitly adding the Design Gallery to the drift detection scope. This follows the gallery's activation as link swap partner #10 at 1:51 PM and its subsequent upgrade (badges, progressive disclosure, ZIP) at 2:04 PM. The addition confirms that new link swap partners automatically enter GPT-5.1's metrics-integrity monitoring scope.