Stress-test the deployment notification

Drag event pressure from a routine release to a burst. Both formats receive the same updates, so their scan cost stays comparable. The Format control selects the requested output while leaving both candidates visible for comparison.

Build the deployment notification as deployment-notification.html. Use styling, corners, accents, compact spacing set to , owner visibility set to , and title it . Exercise concurrent release events in its browser test, then show me the generated source here for review.