feat: add baby object match edutainment flow

src/components/child-motion-demo/ChildMotionWarmupDemo.test.tsx

@@ -37,6 +37,18 @@ vi.mock('../../services/useMocapInput', () => ({
   }),
 }));
 
+vi.mock('../ResolvedAssetImage', () => ({
+  ResolvedAssetImage: ({
+    src,
+    alt,
+    className,
+  }: {
+    src?: string | null;
+    alt?: string;
+    className?: string;
+  }) => (src ? <img src={src} alt={alt} className={className} /> : null),
+}));
+
 beforeEach(() => {
   resetChildMotionWarmupRuntimeSession();
   vi.restoreAllMocks();
@@ -71,6 +83,18 @@ test('re-entering within the same runtime session opens the start button', () =>
   expect(screen.getByRole('button', { name: '开始游戏' })).toBeTruthy();
 });
 
+test('start button opens the baby object match level', () => {
+  markChildMotionWarmupCompletedInRuntime();
+
+  render(<ChildMotionWarmupDemo />);
+
+  fireEvent.click(screen.getByRole('button', { name: '开始游戏' }));
+
+  expect(screen.getByTestId('baby-object-match-runtime')).toBeTruthy();
+  expect(screen.getByText('将物品放入对应的篮子里')).toBeTruthy();
+  expect(screen.queryByText('下一关正在设计中')).toBeNull();
+});
+
 test('developer keyboard input moves the avatar and triggers jump state', () => {
   render(<ChildMotionWarmupDemo />);