consumer模块完成90%，前端完成supabase对接

mall/services/analytics/couponAnalysisService.uts

@@ -0,0 +1,42 @@
+import { computeDateRange, toDateOnly } from './dateRange.uts'
+import { rpcOrEmptyArray, rpcOrNull } from './rpc.uts'
+
+export type CouponAnalysisData = {
+  overviewRow: UTSJSONObject | null
+  typeList: Array<UTSJSONObject>
+  channelList: Array<UTSJSONObject>
+  trendList: Array<UTSJSONObject>
+  conversionList: Array<UTSJSONObject>
+}
+
+export async function fetchCouponAnalysis(period: string, range?: { start: string; end: string } | null): Promise<CouponAnalysisData> {
+  let startIso: string;
+  let endIso: string;
+
+  if (range != null && range.start && range.end) {
+    startIso = range.start;
+    endIso = range.end;
+  } else {
+    const computedRange = computeDateRange(period)
+    startIso = computedRange.startIso
+    endIso = computedRange.endIso
+  }
+
+  const p_start_date = toDateOnly(startIso)
+  const p_end_date = toDateOnly(endIso)
+
+  const params = {
+    p_start_date,
+    p_end_date
+  } as any
+
+  const [overviewRow, typeList, channelList, trendList, conversionList] = await Promise.all([
+    rpcOrNull('rpc_analytics_coupon_overview', params),
+    rpcOrEmptyArray('rpc_analytics_coupon_by_type', params),
+    rpcOrEmptyArray('rpc_analytics_coupon_by_channel', params),
+    rpcOrEmptyArray('rpc_analytics_coupon_trend', params),
+    rpcOrEmptyArray('rpc_analytics_coupon_conversion', params)
+  ])
+
+  return { overviewRow, typeList, channelList, trendList, conversionList }
+}