curl --request GET \
  --url https://upay-sistema-api.onrender.com/api/affiliate/stats \
  --header 'API-Key: <api-key>'

{
  "data": {
    "totalLinks": 123,
    "activeLinks": 123,
    "totalClicks": 123,
    "totalConversions": 123,
    "totalEarnedCents": 123,
    "pendingCents": 123
  }
}