update the adminpage ui

src/app/api/reports/journey/route.ts

@@ -0,0 +1,21 @@
+import type {NextRequest} from 'next/server';
+import {engagementApi} from '@/services/api/engagementApi';
+import {toReportWindow, toSiteParam} from '@/services/api/range';
+import {serveUpstream} from '@/shared/services/bff';
+import {toJourney} from '@/features/engagement/services/mapEngagement';
+
+export const dynamic = 'force-dynamic';
+
+/**
+ * GET /api/reports/journey — visit → take part → buy → come back → refer.
+ *
+ * Distinct people per stage. Not a strict funnel, and the panel says so.
+ */
+export async function GET(req: NextRequest) {
+  return serveUpstream(req, async (token, query) => {
+    const window = toReportWindow(query.range, new Date(query.nowMs));
+    return toJourney(
+      await engagementApi.journey(token, window, toSiteParam(query.storeId)),
+    );
+  });
+}