feat: harden platform workflows and UI governance

api/src/dictionaries/dictionaries.service.spec.ts

@@ -1,3 +1,4 @@
+import { ConflictException } from '@nestjs/common';
 import { DictionariesService } from './dictionaries.service';
 
 function createPrismaMock() {
@@ -173,6 +174,22 @@ describe('DictionariesService', () => {
     expect(prisma.enterpriseBlacklist.update).toHaveBeenCalledWith({ where: { id: 'enterprise-1' }, data: { status: 'deleted' } });
   });
 
+  it.each([
+    ['global', 'globalBlacklist', 'createGlobalBlacklist', { phoneNumber: '13800000000', reason: '投诉' }],
+    ['enterprise', 'enterpriseBlacklist', 'createEnterpriseBlacklist', {
+      tenantId: 'tenant-1', applicationId: 'app-1', phoneNumber: '13900000000', reason: '退订',
+    }],
+  ] as const)('maps a duplicate %s blacklist entry, including a soft-deleted row, to HTTP 409', async (_scope, model, method, input) => {
+    const prisma = createPrismaMock();
+    prisma[model].create.mockRejectedValue({ code: 'P2002', meta: { target: ['phoneNumber'] } });
+    const service = new DictionariesService(prisma as never);
+
+    await expect(service[method](input as never)).rejects.toBeInstanceOf(ConflictException);
+    await expect(service[method](input as never)).rejects.toMatchObject({
+      response: expect.objectContaining({ code: 'BLACKLIST_DUPLICATE', field: 'phoneNumber' }),
+    });
+  });
+
   it('only accepts string, image and file report field types', async () => {
     const prisma = createPrismaMock();
     const service = new DictionariesService(prisma as never);