feat(Apps): introduce Apps tab and related screens for enhanced navigation

- Added a new "Apps" tab in the TabsLayout, providing users with access to various applications.
- Created AppsScreen to display app entries, including a schedule feature with a calendar icon.
- Implemented routing for the schedule and course screens under the new Apps tab structure.
- Updated navigation hrefs to reflect the new Apps section, improving overall user experience.
- Refactored HomeScreen to manage bottom tab visibility based on scroll events, enhancing usability.

src/app-navigation/AppDesktopShell.tsx

@@ -15,7 +15,7 @@ import { colors, shadows } from '../theme';
 import { useTotalUnreadCount } from '../stores';
 import { AppRouteStack } from './AppRouteStack';
 
-type TabName = 'HomeTab' | 'MessageTab' | 'ScheduleTab' | 'ProfileTab';
+type TabName = 'HomeTab' | 'MessageTab' | 'AppsTab' | 'ProfileTab';
 
 const SIDEBAR_WIDTH_DESKTOP = 240;
 const SIDEBAR_WIDTH_TABLET = 200;
@@ -24,13 +24,13 @@ const SIDEBAR_COLLAPSED_WIDTH = 72;
 const NAV_ITEMS: { name: TabName; label: string; href: string; icon: string; iconOutline: string }[] = [
   { name: 'HomeTab', label: '首页', href: '/home', icon: 'home', iconOutline: 'home-outline' },
   { name: 'MessageTab', label: '消息', href: '/messages', icon: 'message-text', iconOutline: 'message-text-outline' },
-  { name: 'ScheduleTab', label: '课表', href: '/schedule', icon: 'calendar-today', iconOutline: 'calendar-today' },
+  { name: 'AppsTab', label: '应用', href: '/apps', icon: 'view-grid', iconOutline: 'view-grid-outline' },
   { name: 'ProfileTab', label: '我的', href: '/profile', icon: 'account', iconOutline: 'account-outline' },
 ];
 
 function pathToTab(pathname: string): TabName {
   if (pathname.startsWith('/messages')) return 'MessageTab';
-  if (pathname.startsWith('/schedule')) return 'ScheduleTab';
+  if (pathname.startsWith('/apps')) return 'AppsTab';
   if (pathname.startsWith('/profile')) return 'ProfileTab';
   if (pathname.startsWith('/home')) return 'HomeTab';
   return 'HomeTab';