feat(HomePage): 已登录用户访问首页展示个人中心内容

- HomePage: 添加条件渲染，已登录时展示 Center 组件
- 重构 Center 目录结构，合并 Center.tsx 到 index.tsx
- 重命名 CenterDashboard 为 Center（lazy-components, homeRoutes）

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/routes/homeRoutes.js

@@ -28,7 +28,7 @@ export const homeRoutes = [
     // 个人中心 - /home/center
     {
         path: 'center',
-        component: lazyComponents.CenterDashboard,
+        component: lazyComponents.Center,
         protection: PROTECTION_MODES.MODAL,
         meta: {
             title: '个人中心',

src/routes/lazy-components.js

@@ -11,7 +11,7 @@ export const lazyComponents = {
     // Home 模块
     // ⚡ 直接引用 HomePage，无需中间层（静态页面不需要骨架屏）
     HomePage: React.lazy(() => import('@views/Home/HomePage')),
-    CenterDashboard: React.lazy(() => import('@views/Center')),
+    Center: React.lazy(() => import('@views/Center')),
     ProfilePage: React.lazy(() => import('@views/Profile/ProfilePage')),
     // 价值论坛 - 我的积分页面
     ForumMyPoints: React.lazy(() => import('@views/Profile')),
@@ -56,7 +56,7 @@ export const lazyComponents = {
  */
 export const {
     HomePage,
-    CenterDashboard,
+    Center,
     ProfilePage,
     ForumMyPoints,
     SettingsPage,