curl --request GET \
  --url http://localhost:3001/api/admin/analysis/chart-data \
  --header 'Authorization: <api-key>'

{
  "data": [
    {
      "timestamp": "<string>",
      "count": 123,
      "groupKey": "<string>",
      "groupLabel": "<string>"
    }
  ],
  "granularity": "30second"
}