curl --request PATCH \
  --url https://api.autoprintfarm.com/public/v1/skus/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "sku": "<string>",
  "color": "<string>",
  "hex_code": "<string>",
  "low_stock_threshold": 1,
  "is_active": true
}
'

{
  "success": true,
  "data": {
    "id": "<string>",
    "product_id": "<string>",
    "sku": "<string>",
    "color": "<string>",
    "filament_type": "<string>",
    "hex_code": "<string>",
    "quantity": 123,
    "stock_level": 123,
    "low_stock_threshold": 123,
    "is_active": true,
    "is_composite": true,
    "created_at": "<string>",
    "updated_at": "<string>",
    "finished_goods_stock": 123
  }
}