数据分析ui补充完善，接入数据库

types/analytics/sales.uts

@@ -0,0 +1,22 @@
+// types/analytics/sales.uts
+
+// Re-exporting shared types from dashboard for semantic clarity in the sales context.
+import type { TrendData, TopProductItem, TopMerchantItem } from './dashboard.uts'
+
+export type SalesTrendData = TrendData
+export type ProductRank = TopProductItem
+export type MerchantRank = TopMerchantItem
+
+/**
+ * Key Performance Indicators for the Sales Report page.
+ */
+export type SalesData = {
+  gmv: number
+  gmv_growth: number
+  orders: number
+  order_growth: number
+  conversion_rate: number
+  conversion_growth: number
+  avg_order_amount: number
+  avg_order_growth: number
+}