feat: Add Personal Center module and UI improvements

- Add ProfilePage with avatar upload, password change, and module status display

- Update logo and favicon for login page and browser tab

- Redirect Data Cleaning module default route to Tool C

- Hide Settings button from top navigation for MVP

- Add avatar display in top navigation bar with refresh sync

- Add Prompt knowledge base integration development plan docs

frontend-v2/src/App.tsx

@@ -21,6 +21,8 @@ import { MODULES } from './framework/modules/moduleRegistry'
 import UserListPage from './modules/admin/pages/UserListPage'
 import UserFormPage from './modules/admin/pages/UserFormPage'
 import UserDetailPage from './modules/admin/pages/UserDetailPage'
+// 个人中心页面
+import ProfilePage from './pages/user/ProfilePage'
 
 /**
  * 应用根组件
@@ -86,6 +88,10 @@ function App() {
                       }
                     />
                   ))}
+                  
+                  {/* 个人中心路由 - 2026-01-28 新增 */}
+                  <Route path="/user/profile" element={<ProfilePage />} />
+                  <Route path="/user/settings" element={<ProfilePage />} />
                 </Route>
 
                 {/* 运营管理端 /admin/* */}