curl --request GET \
  --url https://app.solya.app/api/variants \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "brandId": "brand-uuid-adidas",
      "brandName": "Adidas",
      "collectionId": "collection-uuid-ss24",
      "costPrice": 42,
      "displayName": "Superstar Black EU42",
      "fullName": "Adidas Superstar — Black/White — EU 42",
      "grossMarginPct": 53.3,
      "id": "variant-uuid-001",
      "isActive": true,
      "productId": "product-uuid-001",
      "productName": "Adidas Superstar",
      "retailPrice": 89.95,
      "sku": "ADI-SUPERSTAR-BLK-42"
    },
    {
      "brandId": "brand-uuid-nike",
      "brandName": "Nike",
      "collectionId": "collection-uuid-ss24",
      "costPrice": 50,
      "displayName": "Air Force 1 White EU41",
      "fullName": "Nike Air Force 1 — White — EU 41",
      "grossMarginPct": 54.5,
      "id": "variant-uuid-002",
      "isActive": true,
      "productId": "product-uuid-002",
      "productName": "Nike Air Force 1",
      "retailPrice": 109.95,
      "sku": "NKE-AF1-WHT-41"
    }
  ],
  "page": 1,
  "pageSize": 20,
  "total": 248
}