{
  "_comment": "D5 fixture for /demos/auth. The demo defaults to UNAUTHENTICATED — the probe's preFill clicks the SignInCard's sign-in button to mount <CopilotKit> + chat, the runner sends 'auth check turn 1', the assertion clicks sign-out and waits for the SignInCard to re-mount (proves the entire chat tree unmounted on sign-out). Substring 'auth check turn 1' is unique across the d5-all bundle.",
  "fixtures": [
    {
      "match": { "userMessage": "auth check turn 1" },
      "response": {
        "content": "Authenticated session is active. The runtime accepted your request because the Authorization header carried the demo bearer token."
      }
    }
  ]
}