curl --request GET \
  --url https://app.solya.app/api/sales-lines/{saleLineId} \
  --header 'Authorization: Bearer <token>'

{
  "brandId": "brand-uuid-nike",
  "brandName": "Nike",
  "code": "SL-2026-0521-001",
  "cost": 56,
  "inventoryItemId": "inv-item-uuid-1",
  "inventoryItemSku": "NK-AM90-WHT-42",
  "lineType": "SALE",
  "margin": 69,
  "price": 150,
  "productId": "product-uuid-1",
  "productName": "Air Max 90",
  "quantity": 1,
  "saleCode": "T-2026-0521",
  "saleDate": "2026-05-15T14:32:00.000Z",
  "saleId": "sale-uuid-1",
  "saleLineId": "sale-line-uuid-1",
  "shopId": "shop-uuid-1",
  "shopName": "Paris Opéra",
  "tax": 25,
  "variantCode": "NK-AM90-WHT",
  "variantId": "variant-uuid-a",
  "variantName": "White"
}