MarketTrendSnapshotSummary

{
    "categoryId": 17032851,
    "categoryName": "全部类目",
    "updatePeriod": "2026-05-20",
    "salableProductCount": 0,
    "salesRate": "50.00%",
    "gmv": 123.45,
    "gmvGrowthRate": "50.00%",
    "sales": 0,
    "salesGrowthRate": "50.00%"
}