{
  "result": "PASS",
  "checks": [
    "exactly four accessible switches",
    "ready status derives from backend",
    "duplicate clicks produce one patch",
    "saving retains acknowledged value and disables all controls",
    "tool patch is narrow",
    "master off preserves individual choices",
    "master on restores choices",
    "failed save does not change persisted checkmark",
    "retry succeeds and clears error",
    "reopen reloads saved choices",
    "missing bundle is disabled with honest status",
    "non-Windows disables controls and explains support",
    "read failure offers recovery without enabling controls",
    "read retry recovers actual state",
    "save acknowledged after navigation is read on reopen",
    "no unrelated security controls",
    "future process and system fallback warning present",
    "no uncaught renderer errors"
  ],
  "limits": "Controlled DOM/API fixture, not Windows execution or screenshot pixel parity."
}
