feat: 商品计算报错问题

src/store/modules/selectedDate.js

@@ -3,7 +3,11 @@ import { defineStore } from "pinia";
 export const useSelectedDateStore = defineStore("selectedDate", {
   state() {
     return {
-      selectedDate: {},
+      selectedDate: {
+        startDate: "",
+        endDate: "",
+        totalDays: 1,
+      },
     };
   },