perf(tracks): bound playback rendering work

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

@@ -9,8 +9,11 @@ const overlaySetMap = vi.fn();
 const mapOff = vi.fn();
 const mapDestroy = vi.fn();
 const markerListeners: Array<{ overlay: TestOverlay; event: string; handler: () => void }> = [];
+const overlayInstances: TestOverlay[] = [];
+const mapInstances: TestMap[] = [];
 
 class TestOverlay {
+  constructor() { overlayInstances.push(this); }
   on = vi.fn((event: string, handler: () => void) => markerListeners.push({ overlay: this, event, handler }));
   off = overlayOff;
   setMap = overlaySetMap;
@@ -19,6 +22,7 @@ class TestOverlay {
 }
 
 class TestMap {
+  constructor() { mapInstances.push(this); }
   add = vi.fn();
   addControl = vi.fn();
   setFitView = vi.fn();
@@ -90,6 +94,38 @@ afterEach(() => {
   mapOff.mockReset();
   mapDestroy.mockReset();
   markerListeners.length = 0;
+  overlayInstances.length = 0;
+  mapInstances.length = 0;
+});
+
+test('uses the playback cadence for follow animation and advances the passed path', async () => {
+  window.__LINGNIU_APP_CONFIG__ = { amapWebJsKey: 'amap-web-key' };
+  window.AMapLoader = { load: vi.fn(async () => amapMock()) };
+  const view = render(<TrackMap
+    points={points}
+    stops={[]}
+    activeIndex={0}
+    showStops={false}
+    follow
+    followDurationMs={65}
+    onSelectIndex={() => undefined}
+    onFollowChange={() => undefined}
+  />);
+
+  await waitFor(() => expect(mapInstances).toHaveLength(1));
+  view.rerender(<TrackMap
+    points={points}
+    stops={[]}
+    activeIndex={1}
+    showStops={false}
+    follow
+    followDurationMs={65}
+    onSelectIndex={() => undefined}
+    onFollowChange={() => undefined}
+  />);
+
+  await waitFor(() => expect(mapInstances[0].panTo).toHaveBeenLastCalledWith(expect.any(Array), 65));
+  expect(overlayInstances.some((overlay) => overlay.setPath.mock.calls.some(([path]) => Array.isArray(path) && path.length === 2))).toBe(true);
 });
 
 test('detaches every marker listener and map listener on unmount', async () => {