fix(web): retry transient map load failures

vehicle-data-platform/apps/web/src/v2/map/FleetMap.test.tsx

@@ -167,13 +167,16 @@ afterEach(() => {
   vi.restoreAllMocks();
 });
 
-test('renders data that arrives before the delayed AMap SDK is ready', async () => {
+test('recovers in place after a transient AMap failure and renders data that arrived while retrying', async () => {
   let resolveAMap!: (value: AMapLike) => void;
   const delayedAMap = new Promise<AMapLike>((resolve) => {
     resolveAMap = resolve;
   });
   window.__LINGNIU_APP_CONFIG__ = { amapWebJsKey: 'amap-web-key' };
-  window.AMapLoader = { load: vi.fn(() => delayedAMap) };
+  const load = vi.fn()
+    .mockRejectedValueOnce(new Error('temporary map network failure'))
+    .mockImplementationOnce(() => delayedAMap);
+  window.AMapLoader = { load };
 
   render(
     <FleetMap
@@ -183,6 +186,8 @@ test('renders data that arrives before the delayed AMap SDK is ready', async ()
     />
   );
 
+  expect(await screen.findByText(/地图加载失败/)).toBeInTheDocument();
+  fireEvent.click(screen.getByRole('button', { name: /重新加载地图/ }));
   expect(setData).not.toHaveBeenCalled();
 
   await act(async () => {
@@ -196,6 +201,8 @@ test('renders data that arrives before the delayed AMap SDK is ready', async ()
   const clusterStyles = setStyle.mock.calls[setStyle.mock.calls.length - 1]?.[0] as Array<{ url: string }>;
   expect(decodeURIComponent(clusterStyles[5].url)).toContain('>12</text>');
   expect(decodeURIComponent(clusterStyles[5].url)).not.toContain('10+');
+  expect(load).toHaveBeenCalledTimes(2);
+  expect(screen.queryByText(/地图加载失败/)).not.toBeInTheDocument();
 });
 
 test('detaches AMap listeners and destroys the map on unmount', async () => {