refactor: 拆分小程序 vue 结构

src/components/cart-drawer/useCartDrawer.ts

@@ -0,0 +1,8 @@
+import type { CartLine } from '@/stores/cart'
+
+export interface CartDrawerLineItem extends CartLine {
+  lineAmount: number
+  lineAmountText: string
+  unitPriceText: string
+  specText: string
+}