fix: restore daily operations quality metrics

api/src/operations/operations.service.spec.ts

@@ -2,6 +2,7 @@ import { OperationsService } from './operations.service';
 
 function createPrismaMock() {
   return {
+    $queryRaw: jest.fn().mockResolvedValue([]),
     user: {
       findFirst: jest.fn().mockResolvedValue({ tenantId: 'tenant-1' }),
     },
@@ -391,6 +392,50 @@ describe('OperationsService', () => {
     });
   });
 
+  it('returns real daily channel and signature quality for the selected Shanghai date', async () => {
+    const prisma = createPrismaMock();
+    prisma.$queryRaw
+      .mockResolvedValueOnce([{
+        channelId: 'channel-1',
+        channelName: '通道一',
+        total: 5,
+        successCount: 3,
+        unknownCount: 1,
+        failureCount: 1,
+        successRate: 60,
+        unknownRate: 20,
+        failureRate: 20,
+        averageArrivalMs: 1200,
+      }])
+      .mockResolvedValueOnce([{
+        id: 'signature-1:plain',
+        signatureId: 'signature-1',
+        signatureName: '【测试签名】',
+        tenantId: 'tenant-1',
+        tenantName: '租户A',
+        hasDrainage: false,
+        total: 5,
+        successCount: 3,
+        unknownCount: 1,
+        failureCount: 1,
+        successRate: 60,
+        averageArrivalMs: 1200,
+      }]);
+    const service = new OperationsService(prisma as never);
+
+    await expect(service.sendQuality('2026-07-24')).resolves.toEqual({
+      date: '2026-07-24',
+      channels: [expect.objectContaining({ channelId: 'channel-1', total: 5, successRate: 60 })],
+      signatures: [expect.objectContaining({ signatureId: 'signature-1', signatureName: '【测试签名】', hasDrainage: false })],
+    });
+    expect(prisma.$queryRaw).toHaveBeenCalledTimes(2);
+  });
+
+  it('rejects invalid send quality dates', async () => {
+    const service = new OperationsService(createPrismaMock() as never);
+    await expect(service.sendQuality('2026-02-31')).rejects.toThrow('统计日期无效');
+  });
+
   it('returns trace details and reconciliation diffs', async () => {
     const prisma = createPrismaMock();
     const service = new OperationsService(prisma as never);