feat(platform): add batch vehicle overview api

vehicle-data-platform/apps/web/src/api/client.test.ts

@@ -105,6 +105,42 @@ test('vehicleServiceOverview sends keyword to the lightweight overview endpoint'
   expect(result.serviceStatus?.status).toBe('degraded');
 });
 
+test('vehicleServiceOverviews posts keywords to the batch overview endpoint', async () => {
+  const fetchMock = vi.spyOn(globalThis, 'fetch').mockResolvedValue({
+    ok: true,
+    json: async () => ({
+      data: {
+        items: [
+          { vin: 'VIN001', plate: '粤AG18312', protocols: ['JT808'], coverageStatus: 'online', sourceCount: 1, onlineSourceCount: 1 },
+          { vin: 'VIN002', plate: '豫A88888', protocols: ['YUTONG_MQTT'], coverageStatus: 'online', sourceCount: 1, onlineSourceCount: 1 }
+        ],
+        total: 2,
+        limit: 200,
+        offset: 0
+      },
+      traceId: 'trace-test',
+      timestamp: 1783094400000
+    })
+  } as Response);
+
+  const result = await api.vehicleServiceOverviews({
+    keywords: ['粤AG18312', 'LMRKH9AC2R1004087'],
+    limit: 200,
+    offset: 0
+  });
+
+  expect(fetchMock).toHaveBeenCalledWith('/api/vehicle-service/overviews', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({
+      keywords: ['粤AG18312', 'LMRKH9AC2R1004087'],
+      limit: 200,
+      offset: 0
+    })
+  });
+  expect(result.total).toBe(2);
+});
+
 test('api errors include backend message, detail, and trace id', async () => {
   vi.spyOn(globalThis, 'fetch').mockResolvedValue({
     ok: false,