test: 修复因预发布模式文案变更导致的测试失败

- header/footer/mobile-menu/mobile-tab-bar: 更新导航项断言与 mock
- insight-card/page-header: 适配组件结构变更（InkGlowCard、Badge）
- about/products/news: 修复重复文本匹配，添加 PageNav/date-fns mock
- constants: 更新服务标题断言
- 修复 mock 组件缺少 displayName 的 ESLint 错误

src/components/layout/mobile-tab-bar.test.tsx

@@ -41,7 +41,7 @@ describe('MobileTabBar', () => {
       expect(screen.getByText('首页')).toBeInTheDocument();
       expect(screen.getByText('服务')).toBeInTheDocument();
       expect(screen.getByText('产品')).toBeInTheDocument();
-      expect(screen.getByText('新闻')).toBeInTheDocument();
+      expect(screen.getByText('关于')).toBeInTheDocument();
       expect(screen.getByText('联系')).toBeInTheDocument();
     });
 
@@ -76,19 +76,19 @@ describe('MobileTabBar', () => {
     it('should have correct href for services', () => {
       render(<MobileTabBar />);
       const servicesLink = screen.getByText('服务').closest('a');
-      expect(servicesLink).toHaveAttribute('href', '/#services');
+      expect(servicesLink).toHaveAttribute('href', '/services');
     });
 
     it('should have correct href for products', () => {
       render(<MobileTabBar />);
       const productsLink = screen.getByText('产品').closest('a');
-      expect(productsLink).toHaveAttribute('href', '/#products');
+      expect(productsLink).toHaveAttribute('href', '/products');
     });
 
-    it('should have correct href for news', () => {
+    it('should have correct href for about', () => {
       render(<MobileTabBar />);
-      const newsLink = screen.getByText('新闻').closest('a');
-      expect(newsLink).toHaveAttribute('href', '/#news');
+      const aboutLink = screen.getByText('关于').closest('a');
+      expect(aboutLink).toHaveAttribute('href', '/about');
     });
 
     it('should have correct href for contact', () => {