feat(platform): add quality escalation clock

vehicle-data-platform/apps/web/src/test/App.test.tsx

@@ -2705,11 +2705,11 @@ test('shows actionable priority queue on quality page', async () => {
 
   expect(await screen.findByText('处置优先队列')).toBeInTheDocument();
   expect(screen.getAllByText('P0').length).toBeGreaterThan(0);
-  expect(screen.getByText('粤A优先1 / VIN-P0-001')).toBeInTheDocument();
+  expect(screen.getAllByText('粤A优先1 / VIN-P0-001').length).toBeGreaterThan(0);
   expect(screen.getAllByText('确认平台转发').length).toBeGreaterThan(0);
   expect(screen.getAllByText('30 分钟确认').length).toBeGreaterThan(0);
   expect(screen.getAllByText('P1').length).toBeGreaterThan(0);
-  expect(screen.getByText('粤A优先2 / 13307795426')).toBeInTheDocument();
+  expect(screen.getAllByText('粤A优先2 / 13307795426').length).toBeGreaterThan(0);
   fireEvent.click(screen.getAllByRole('button', { name: '进入车辆服务' })[0]);
 
   await waitFor(() => {
@@ -2800,8 +2800,8 @@ test('uses backend quality notification plan on quality page', async () => {
 
   render(<App />);
 
-  expect(await screen.findByText('后端车辆标签 / VIN-PLAN-001')).toBeInTheDocument();
-  expect(screen.getByText('后端建议动作')).toBeInTheDocument();
+  expect((await screen.findAllByText('后端车辆标签 / VIN-PLAN-001')).length).toBeGreaterThan(0);
+  expect(screen.getAllByText('后端建议动作').length).toBeGreaterThan(0);
   expect(screen.getAllByText('10 分钟确认').length).toBeGreaterThan(0);
   expect(screen.getByText('后端无来源规则')).toBeInTheDocument();
   expect(screen.getByText('后端 P0 通知策略')).toBeInTheDocument();
@@ -3638,6 +3638,93 @@ test('opens same-day history evidence from quality issue row', async () => {
   });
 });
 
+test('quality page surfaces escalation clock for priority issues', async () => {
+  window.history.replaceState(null, '', '/#/quality');
+  vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {
+    const path = String(input);
+    if (path.includes('/api/ops/health')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { linkHealth: [], kafkaLag: 0, redisOnlineKeys: 0, tdengineWritable: true, mysqlWritable: true, runtime: { requestTimeoutMs: 5000 } },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/quality/summary')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            issueVehicleCount: 2,
+            issueRecordCount: 2,
+            errorCount: 1,
+            warningCount: 1,
+            protocols: [{ name: 'VEHICLE_SERVICE', count: 1 }, { name: 'JT808', count: 1 }],
+            issueTypes: [{ name: 'NO_SOURCE', count: 1 }, { name: 'LINK_GAP', count: 1 }]
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/quality/issues')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            items: [
+              {
+                vin: 'VIN-QUALITY-OVERDUE',
+                plate: '粤A超时',
+                phone: '13307790001',
+                sourceEndpoint: 'vehicle_identity_binding',
+                protocol: 'VEHICLE_SERVICE',
+                issueType: 'NO_SOURCE',
+                severity: 'error',
+                lastSeen: '2026-07-03 08:00:00',
+                detail: '绑定车辆无来源'
+              },
+              {
+                vin: 'VIN-QUALITY-RECENT',
+                plate: '粤A正常',
+                phone: '13307790002',
+                sourceEndpoint: '115.231.168.135:43625',
+                protocol: 'JT808',
+                issueType: 'LINK_GAP',
+                severity: 'warning',
+                lastSeen: new Date().toISOString(),
+                detail: '最近链路间断'
+              }
+            ],
+            total: 2,
+            limit: 20,
+            offset: 0
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    return {
+      ok: true,
+      json: async () => ({
+        data: { items: [], total: 0, limit: 20, offset: 0 },
+        traceId: 'trace-test',
+        timestamp: 1783094400000
+      })
+    } as Response;
+  });
+
+  render(<App />);
+
+  expect(await screen.findByText('告警升级时钟')).toBeInTheDocument();
+  expect(await screen.findByText('超 SLA')).toBeInTheDocument();
+  expect(screen.getByText('SLA 正常')).toBeInTheDocument();
+  expect(screen.getByText('VIN-QUALITY-OVERDUE')).toBeInTheDocument();
+});
+
 test('opens same-day raw evidence from quality issue row', async () => {
   window.history.replaceState(null, '', '/#/quality');
   vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {