feat(platform): guide mileage anomaly handling

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

@@ -3235,6 +3235,71 @@ test('opens vehicle service from mileage row with row source evidence', async ()
   });
 });
 
+test('shows mileage anomaly action guidance', async () => {
+  window.history.replaceState(null, '', '/#/mileage?keyword=VIN-MILEAGE-ANOMALY&protocol=GB32960');
+  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/mileage/summary')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: { vehicleCount: 1, recordCount: 1, sourceCount: 1, totalMileageKm: -3.2, averageMileagePerVin: -3.2 },
+          traceId: 'trace-test',
+          timestamp: 1783094400000
+        })
+      } as Response;
+    }
+    if (path.includes('/api/mileage/daily')) {
+      return {
+        ok: true,
+        json: async () => ({
+          data: {
+            items: [{
+              vin: 'VIN-MILEAGE-ANOMALY',
+              plate: '粤A异常1',
+              source: 'GB32960',
+              date: '2026-07-03',
+              startMileageKm: 100,
+              endMileageKm: 96.8,
+              dailyMileageKm: -3.2,
+              anomalySeverity: 'warning'
+            }],
+            total: 1,
+            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('VIN-MILEAGE-ANOMALY')).toBeInTheDocument();
+  expect(screen.getByText('核对里程来源')).toBeInTheDocument();
+  expect(screen.getByText('日里程异常，优先核对当天首末总里程、来源断链和补传数据。')).toBeInTheDocument();
+});
+
 test('opens vehicle service from history results with row source evidence', async () => {
   window.history.replaceState(null, '', '/#/history?keyword=%E7%B2%A4AG18312&protocol=JT808');
   vi.spyOn(globalThis, 'fetch').mockImplementation(async (input, init) => {