feat(platform-web): show vehicle list service status

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

@@ -245,6 +245,55 @@ test('keeps primary protocol when opening vehicle service from realtime vehicles
   });
 });
 
+test('shows vehicle service status in vehicle list', async () => {
+  window.history.replaceState(null, '', '/#/vehicles');
+  vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {
+    const path = String(input);
+    if (path.includes('/api/vehicles/coverage')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            items: [{
+              vin: 'VIN-DEGRADED-001',
+              plate: '粤AG18312',
+              phone: '13307795425',
+              oem: 'G7s',
+              protocols: ['GB32960', 'JT808'],
+              sourceCount: 2,
+              onlineSourceCount: 1,
+              online: true,
+              lastSeen: '2026-07-03 20:12:10',
+              bindingStatus: 'bound'
+            }],
+            total: 1,
+            limit: 20,
+            offset: 0
+          },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    return {
+      ok: true,
+      json: async () => ({
+        data: path.includes('/api/ops/health')
+          ? { linkHealth: [], kafkaLag: 0, redisOnlineKeys: 0, tdengineWritable: true, mysqlWritable: true, runtime: { requestTimeoutMs: 5000 } }
+          : { items: [], total: 0, limit: 10, offset: 0 },
+        traceId: 'trace-test',
+        timestamp: 1783094400000
+      })
+    } as Response;
+  });
+
+  render(<App />);
+
+  expect(await screen.findByText('VIN-DEGRADED-001')).toBeInTheDocument();
+  expect(screen.getByText('车辆服务状态')).toBeInTheDocument();
+  expect(screen.getByText('部分来源离线')).toBeInTheDocument();
+});
+
 test('switches vehicle detail to a source from the coverage cards', async () => {
   window.history.replaceState(null, '', '/#/detail?keyword=VIN001');
   const fetchMock = vi.spyOn(globalThis, 'fetch').mockImplementation(async (input) => {