refactor: address code review feedback (import formatting, simplified mock)

Agent-Logs-Url: https://github.com/objectstack-ai/objectui/sessions/23985d64-7aff-4b70-b372-6d744998c1c8

Co-authored-by: xuyushun441-sys <255036401+xuyushun441-sys@users.noreply.github.com>

Author: Copilot

apps/console/src/__tests__/HomeLayout.test.tsx

@@ -29,10 +29,7 @@ vi.mock('@object-ui/auth', () => ({
     signOut: mockSignOut,
     isAuthenticated: true,
   }),
-  getUserInitials: (u: any) => {
-    if (!u?.name) return 'U';
-    return u.name.split(' ').map((s: string) => s[0]).join('').toUpperCase().slice(0, 2);
-  },
+  getUserInitials: () => 'AD',
 }));
 
 vi.mock('@object-ui/i18n', () => ({

apps/console/src/pages/home/HomeLayout.tsx

@@ -15,9 +15,16 @@ import { useObjectTranslation } from '@object-ui/i18n';
 import { useAuth, getUserInitials } from '@object-ui/auth';
 import {
   Button,
-  DropdownMenu, DropdownMenuTrigger, DropdownMenuContent,
-  DropdownMenuItem, DropdownMenuLabel, DropdownMenuSeparator,
-  DropdownMenuGroup, Avatar, AvatarImage, AvatarFallback,
+  DropdownMenu,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
+  DropdownMenuGroup,
+  Avatar,
+  AvatarImage,
+  AvatarFallback,
 } from '@object-ui/components';
 import { Settings, LogOut, User, Home } from 'lucide-react';