feat: implement Sonner notifications, add Setting model, and reorganize user management into settings navigation.

src/components/Header.tsx

@@ -2,7 +2,7 @@
 
 import { useEffect, useState } from 'react'
 import { usePathname } from 'next/navigation'
-import { Menu, Calendar, Store, ClipboardList, Package, User, FileText, BarChart2 } from 'lucide-react'
+import { Menu, Calendar, Store, ClipboardList, Package, User, FileText, BarChart2, Settings } from 'lucide-react'
 import { buttonVariants } from '@/components/ui/button'
 import { cn } from '@/lib/utils'
 import Link from 'next/link'
@@ -54,12 +54,13 @@ export function Header({ onMenuClick }: { onMenuClick: () => void }) {
           badge: 'Laporan',
           Icon: BarChart2
         }
-      case '/users':
+      case '/settings/users':
+      case '/settings/integrations':
         return {
-          title: 'Manajemen Pengguna',
-          subtitle: 'Kelola data pengguna, role, dan status aktif.',
+          title: 'Pengaturan Aplikasi',
+          subtitle: 'Konfigurasi integrasi, role, dan sistem.',
           badge: 'Superadmin',
-          Icon: User
+          Icon: Settings
         }
       default:
         if (pathname.startsWith('/my-orders/')) {