fix: harden admin and CMPP delivery workflows

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

@@ -5,6 +5,7 @@ function createPrismaMock() {
     phoneSegment: {
       findMany: jest.fn(),
       count: jest.fn().mockResolvedValue(3),
+      delete: jest.fn().mockResolvedValue({ id: 'segment-1' }),
     },
     phoneCarrierRule: {
       findMany: jest.fn().mockResolvedValue([]),
@@ -26,7 +27,12 @@ function createPrismaMock() {
       update: jest.fn().mockImplementation(({ data }) => Promise.resolve({ id: 'enterprise-1', ...data })),
     },
     drainageField: {
+      findMany: jest.fn().mockResolvedValue([]),
       create: jest.fn().mockImplementation(({ data }) => Promise.resolve({ id: 'field-1', ...data })),
+      delete: jest.fn().mockResolvedValue({ id: 'field-1' }),
+    },
+    channelReportField: {
+      count: jest.fn().mockResolvedValue(0),
     },
     smsApplication: {
       findUnique: jest.fn().mockResolvedValue({ id: 'app-1', tenantId: 'tenant-1' }),
@@ -38,6 +44,25 @@ function createPrismaMock() {
 }
 
 describe('DictionariesService', () => {
+  it('deletes a phone segment from the real dictionary table', async () => {
+    const prisma = createPrismaMock();
+    const service = new DictionariesService(prisma as never);
+
+    await service.deletePhoneSegment('segment-1');
+
+    expect(prisma.phoneSegment.delete).toHaveBeenCalledWith({ where: { id: 'segment-1' } });
+  });
+
+  it('returns drainage field usage counts and blocks deleting fields used by channels', async () => {
+    const prisma = createPrismaMock();
+    prisma.drainageField.findMany.mockResolvedValue([{ id: 'field-1', code: 'license', _count: { channelReportFields: 2 } }]);
+    prisma.channelReportField.count.mockResolvedValue(2);
+    const service = new DictionariesService(prisma as never);
+
+    await expect(service.listDrainageFields()).resolves.toEqual([{ id: 'field-1', code: 'license', usageCount: 2 }]);
+    await expect(service.deleteDrainageField('field-1')).rejects.toThrow('不能删除');
+    expect(prisma.drainageField.delete).not.toHaveBeenCalled();
+  });
   it('paginates phone segments with a real database count', async () => {
     const prisma = createPrismaMock();
     prisma.phoneSegment.findMany.mockResolvedValue([