Add permission checks and localization improvements

- Add grant check (64, 'X') to QNA register page
- Add grant check (45, 'X') to user login auth modification
- Replace hardcoded Korean permission messages with i18n key 'common.nopermission'
- Add 'nopermission' translation key to both en.json and ko.json
- Update .env.development to use development API endpoints

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

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

src/entities/account/ui/user-login-auth-info-wrap.tsx

@@ -7,6 +7,8 @@ import { useUserModifyAuthMethodMutation } from '@/entities/user/api/use-user-mo
 import { PATHS } from '@/shared/constants/paths';
 import { useNavigate } from '@/shared/lib/hooks/use-navigate';
 import { snackBar } from '@/shared/lib/toast';
+import { checkGrant } from '@/shared/lib/check-grant';
+import { showAlert } from '@/widgets/show-alert';
 
 export const UserLoginAuthInfoWrap = ({
   mid,
@@ -287,6 +289,11 @@ export const UserLoginAuthInfoWrap = ({
   };
 
   const handleSave = async () => {
+    if(!checkGrant(45, 'X')){
+      showAlert(t('common.nopermission'));
+      return;
+    }
+    
     try {
       const addMethods: AuthMethodModifyItem[] = [];
       const removeMethods: AuthMethodModifyItem[] = [];