curl --request GET \
  --url https://api.empirical.run/api/v2/analytics/test-count \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "daily": [
      {
        "date": "<string>",
        "test_count": 123
      }
    ],
    "summary": {
      "latest_count": 123,
      "first_count": 123,
      "change": 123,
      "change_percent": 123
    }
  }
}