feat: allow SUPER_ADMIN role for admin access and update modal background opacity class.

src/app/dashboard/admin-users/page.tsx

@@ -155,7 +155,7 @@ export default function AdminUsersPage() {
 
       {/* Create Admin Modal */}
       {showCreate && (
-        <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
+        <div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
           <div className="bg-white rounded-lg shadow-xl max-w-md w-full mx-4">
             <div className="px-6 py-4 border-b border-gray-200">
               <h3 className="text-lg font-semibold text-gray-900">Create Admin User</h3>

src/services/auth.service.ts

@@ -37,8 +37,8 @@ class AuthService {
 
     const authData = response.data.data;
 
-    // Check if user is ADMIN
-    if (authData.user.role !== 'ADMIN') {
+    // Check if user is ADMIN or SUPER_ADMIN
+    if (authData.user.role !== 'ADMIN' && authData.user.role !== 'SUPER_ADMIN') {
       throw new Error('Access denied. Admin privileges required.');
     }