fix(home): hide Robot entry and balance three module cards

tests/unit/module-navigation.test.tsx

@@ -52,7 +52,7 @@ describe('AI module navigation', () => {
     });
   });
 
-  it('shows the four supported module choices and routes Canvas from the chooser', async () => {
+  it('shows Agents, Code and Canvas on the home page and routes Canvas from the chooser', async () => {
     render(
       <MemoryRouter initialEntries={['/module-select']}>
         <Routes>
@@ -64,18 +64,16 @@ describe('AI module navigation', () => {
 
     expect(screen.getByTestId('ai-module-selection-page')).toBeInTheDocument();
     expect(screen.getByRole('heading', { name: '今天，想创作什么？' })).toBeInTheDocument();
-    expect(screen.getByRole('heading', { name: '今天，想创作什么？' })).toHaveClass('whitespace-nowrap');
     expect(screen.getByTestId('ai-module-options')).toHaveClass('module-selection-options');
     expect(await screen.findByText('小明，欢迎回来！')).toBeInTheDocument();
-    expect(screen.getByTestId('ai-module-option-programming')).toHaveClass('module-option-card', 'module-option-card-horizontal');
-    for (const moduleId of ['programming', 'painting', 'robot', 'cloud_agents'] as const) {
+    expect(screen.getByTestId('ai-module-option-programming')).toHaveClass('module-option-card');
+    for (const moduleId of ['programming', 'painting', 'cloud_agents'] as const) {
       expect(screen.getByTestId(`ai-module-option-${moduleId}`).querySelector('.module-option-artwork')).toBeNull();
     }
     expect(screen.getAllByTestId(/^ai-module-option-/u).map((option) => option.dataset.testid)).toEqual([
       'ai-module-option-cloud_agents',
       'ai-module-option-programming',
       'ai-module-option-painting',
-      'ai-module-option-robot',
     ]);
     expect(screen.queryByTestId('ai-module-option-learning')).not.toBeInTheDocument();
     expect(screen.queryByText('先选一个入口。进入后，你还可以从左下角随时切换到其他模块。')).not.toBeInTheDocument();
@@ -89,12 +87,7 @@ describe('AI module navigation', () => {
     expect(screen.getByText('Canvas 设计')).toBeInTheDocument();
     expect(screen.getByAltText('数位板设计创作')).toBeInTheDocument();
     expect(screen.getByTestId('ai-module-option-painting')).toHaveTextContent('用灵感描绘色彩缤纷的世界');
-    const robotOption = screen.getByTestId('ai-module-option-robot');
-    expect(robotOption).toBeEnabled();
-    expect(robotOption).not.toHaveClass('module-option-card-disabled');
-    expect(robotOption).toHaveTextContent('Robot 机器');
-    expect(robotOption).toHaveTextContent('制作你的第一个机器人小伙伴');
-    expect(screen.getByAltText('青少年管理机器人硬件与设备绑定')).toBeInTheDocument();
+    expect(screen.queryByTestId('ai-module-option-robot')).not.toBeInTheDocument();
     expect(screen.getByAltText('个人云智能体')).toHaveAttribute('src', expect.stringContaining('module-agents.webp'));
     expect(screen.getByAltText('个人云智能体')).toHaveClass('module-option-card-image-media', 'object-cover');
 
@@ -102,7 +95,8 @@ describe('AI module navigation', () => {
     expect(await screen.findByTestId('location-path')).toHaveTextContent('/image-canvas');
   });
 
-  it('routes Robot from the chooser to the AI hardware workspace', async () => {
+  it('hides Robot from the chooser even when its module permission is enabled', () => {
+    useAuthStore.setState({ moduleAccess: { programming: true, design: true, robot: true, cloud_agents: true } });
     render(
       <MemoryRouter initialEntries={['/module-select']}>
         <Routes>
@@ -112,8 +106,9 @@ describe('AI module navigation', () => {
       </MemoryRouter>,
     );
 
-    fireEvent.click(screen.getByTestId('ai-module-option-robot'));
-    expect(await screen.findByTestId('location-path')).toHaveTextContent('/ai-hardware');
+    expect(screen.queryByTestId('ai-module-option-robot')).not.toBeInTheDocument();
+    expect(screen.queryByText('Robot 机器')).not.toBeInTheDocument();
+    expect(screen.queryByAltText('青少年管理机器人硬件与设备绑定')).not.toBeInTheDocument();
   });
 
   it('greys out a disabled module and does not navigate when it is clicked', async () => {