feat: integrate analytics and fragment receipt improvements

api/src/certification/certification.service.spec.ts

@@ -38,6 +38,22 @@ describe('CertificationService', () => {
     ]);
   });
 
+  it('filters enterprise certification submissions by Shanghai date range', async () => {
+    const prisma = createPrismaMock();
+    const service = new CertificationService(prisma as never);
+
+    await service.list(undefined, 'pending', undefined, '2026-08-01', '2026-08-03');
+
+    expect(prisma.enterpriseCertification.findMany).toHaveBeenCalledWith(expect.objectContaining({
+      where: expect.objectContaining({
+        submittedAt: {
+          gte: new Date('2026-08-01T00:00:00+08:00'),
+          lte: new Date('2026-08-03T23:59:59.999+08:00'),
+        },
+      }),
+    }));
+  });
+
   it('submits certification and marks tenant pending', async () => {
     const prisma = createPrismaMock();
     const service = new CertificationService(prisma as never);