fix: mall SeckillActivity

src/api/mall/promotion/seckill/seckillActivity.ts

@@ -23,14 +23,13 @@ export interface SeckillActivityVO {
 
 // 秒杀活动所需属性
 export interface SeckillProductVO {
-  spuId: number
   skuId: number
   seckillPrice: number
   stock: number
 }
 
 // 扩展 Sku 配置
-type SkuExtension = Sku & {
+export type SkuExtension = Sku & {
   productConfig: SeckillProductVO
 }