curl -X GET "https://api.nevatal.com/api/v1/billing/payments?invoiceId=inv_001" \
  -H "Authorization: Bearer nvtl_your_api_key"

{
  "data": [
    {
      "id": "pay_001",
      "invoiceId": "inv_001",
      "amount": 178500,
      "currency": "COP",
      "method": "card",
      "status": "completed",
      "reference": "TXN-20250315-001",
      "paidAt": "2025-03-15T12:00:00Z",
      "createdAt": "2025-03-15T12:00:00Z"
    }
  ],
  "pagination": {
    "page": 1,
    "limit": 20,
    "total": 1
  }
}