curl --request GET \
  --url http://localhost:8080/cabinet/referral/earnings

{
  "items": [
    {
      "id": 123,
      "amount_kopeks": 123,
      "amount_rubles": 123,
      "reason": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "referral_username": "<string>",
      "referral_first_name": "<string>",
      "campaign_name": "<string>"
    }
  ],
  "total": 123,
  "total_amount_kopeks": 123,
  "total_amount_rubles": 123,
  "page": 123,
  "per_page": 123,
  "pages": 123
}