feat: integrate analytics and fragment receipt improvements

api/src/certification/certification.controller.ts

@@ -26,8 +26,8 @@ export class AdminCertificationController {
   constructor(private readonly certifications: CertificationService) {}
 
   @Get()
-  list(@Query('tenantId') tenantId?: string, @Query('status') status?: string, @Query('keyword') keyword?: string) {
-    return this.certifications.list(tenantId, status, keyword);
+  list(@Query('tenantId') tenantId?: string, @Query('status') status?: string, @Query('keyword') keyword?: string, @Query('submittedAtFrom') submittedAtFrom?: string, @Query('submittedAtTo') submittedAtTo?: string) {
+    return this.certifications.list(tenantId, status, keyword, submittedAtFrom, submittedAtTo);
   }
 
   @Get(':id')

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);

api/src/certification/certification.service.ts

@@ -1,6 +1,7 @@
 import { BadRequestException, Injectable, NotFoundException } from '@nestjs/common';
 import { Prisma } from '@prisma/client';
 import { PrismaService } from '../prisma/prisma.service';
+import { shanghaiDateRange } from '../common/shanghai-date-range';
 
 export interface SubmitCertificationDto {
   tenantId: string;
@@ -20,11 +21,12 @@ export interface ReviewCertificationDto {
 export class CertificationService {
   constructor(private readonly prisma: PrismaService) {}
 
-  async list(tenantId?: string, status?: string, keyword?: string) {
+  async list(tenantId?: string, status?: string, keyword?: string, submittedAtFrom?: string, submittedAtTo?: string) {
     const records = await this.prisma.enterpriseCertification.findMany({
       where: {
         tenantId,
         status: status && status !== 'all' ? status : undefined,
+        submittedAt: shanghaiDateRange(submittedAtFrom, submittedAtTo),
         OR: keyword ? [
           { companyName: { contains: keyword } },
           { licenseNo: { contains: keyword } },