{
  "type": "interaction-trace",
  "steps": [
    {
      "action": "select last-week range",
      "rows": 214
    },
    {
      "action": "open export dialog",
      "state": "export-open"
    },
    {
      "action": "confirm export",
      "state": "exporting"
    },
    {
      "action": "download complete",
      "elapsed_s": 14.2,
      "csv_rows": 214
    }
  ],
  "note": "14.2s < 30s; 214/214 rows; one trigger only after R4 busy guard"
}