fix: validate signatures and restore report metrics

api/src/channels/channels.service.spec.ts

@@ -51,6 +51,7 @@ function createPrismaMock() {
     reportFields: [{ code: 'license', name: '营业执照', fieldType: 'file', required: true, description: null, sortOrder: 1, status: 'active' }],
   };
   return {
+    $queryRaw: jest.fn().mockResolvedValue([]),
     $transaction: jest.fn((callback) => callback({
       smsChannel: {
         create: jest.fn().mockImplementation(({ data }) => Promise.resolve({ id: 'channel-copy', ...data })),
@@ -218,6 +219,70 @@ describe('ChannelsService', () => {
     });
   });
 
+  it('adds real today delivery statistics and the latest successful send time to report tasks', async () => {
+    const prisma = createPrismaMock();
+    const task = { id: 'report-task-1', tenantId: 'tenant-1', signatureId: 'sig-1', channelId: 'channel-1', status: 'approved' };
+    const taskChannel = { id: 'channel-1', code: 'CMPP-A', name: '主通道' };
+    prisma.channelSignatureReportTask.findMany.mockResolvedValue([
+      { ...task, reportType: 'signature', drainageItemId: null, channel: taskChannel },
+      { ...task, id: 'report-task-2', reportType: 'drainage', drainageItemId: 'drain-1', channel: taskChannel },
+    ]);
+    prisma.$queryRaw.mockResolvedValue([
+      {
+        channelId: 'channel-1',
+        signatureId: 'sig-1',
+        drainageInfoId: null,
+        total: 5,
+        acceptedCount: 4,
+        submitFailureCount: 1,
+        successCount: 2,
+        unknownCount: 1,
+        failureCount: 1,
+        lastSuccessfulSentAt: new Date('2026-07-27T01:00:00.000Z'),
+      },
+      {
+        channelId: 'channel-1',
+        signatureId: 'sig-1',
+        drainageInfoId: 'drain-1',
+        total: 3,
+        acceptedCount: 3,
+        submitFailureCount: 0,
+        successCount: 3,
+        unknownCount: 0,
+        failureCount: 0,
+        lastSuccessfulSentAt: new Date('2026-07-27T02:00:00.000Z'),
+      },
+    ]);
+    const service = new ChannelsService(prisma as never);
+
+    const result = await service.listReportTasks(undefined, undefined, 'channel-1');
+
+    expect(result[0]).toEqual(expect.objectContaining({
+      deliveryStats: {
+        total: 8,
+        acceptedCount: 7,
+        submitFailureCount: 1,
+        submitFailureRate: 12.5,
+        successCount: 5,
+        successRate: 71.4,
+        unknownCount: 1,
+        unknownRate: 14.3,
+        failureCount: 1,
+        failureRate: 14.3,
+      },
+      lastSuccessfulSentAt: new Date('2026-07-27T02:00:00.000Z'),
+    }));
+    expect(result[1]).toEqual(expect.objectContaining({
+      deliveryStats: expect.objectContaining({
+        total: 3,
+        submitFailureCount: 0,
+        successCount: 3,
+        successRate: 100,
+      }),
+      lastSuccessfulSentAt: new Date('2026-07-27T02:00:00.000Z'),
+    }));
+  });
+
   it('changes channel report status and recomputes the signature summary atomically', async () => {
     const prisma = createPrismaMock();
     const tx = {