curl -X PATCH "https://api.affonso.io/v1/program/groups/a1b2c3d4-e5f6-7890-abcd-ef1234567890" \
  -H "Authorization: Bearer sk_live_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "VIP Partners",
    "description": "Top-tier affiliate partners"
  }'

{
  "success": true,
  "data": {
    "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "name": "VIP Partners",
    "description": "Top-tier affiliate partners",
    "custom_website_url": "https://partners.acme.com",
    "is_default": false,
    "created_at": "2024-03-01T12:00:00.000Z"
  }
}