Mandatory update popup at the worst time

{
  "input": {
    "prompt": " Photo-style scene of a person presenting in a meeting (projector screen visible) while a giant modal dialog blocks the editor: “Update required now” with only one button: “Restart during demo.” The audience in the background looks confused; the presenter looks stressed. The pop-up should include a fake progress bar stuck at 99% and a cheery line like “This will only take a moment (estimated 18 minutes).”"
  }
}