{
  "path": "sample-products.json",
  "outputPath": "products-clean.xlsx",
  "filters": [{ "column": "库存", "op": "gt", "value": 0 }],
  "dedupeBy": ["sku"],
  "sortBy": [{ "column": "价格", "numeric": true, "direction": "desc" }],
  "columns": ["sku", "商品", "价格", "库存"],
  "rename": { "sku": "货号" }
}