feat: add some security

src/modules/admin/questions/admin-questions.controller.ts

@@ -21,9 +21,11 @@ import {
   Post,
   Query,
 } from '@nestjs/common';
+import { Throttle } from '@nestjs/throttler';
 
 @Controller('admin/questions')
 @Roles(Role.SUPERUSER, Role.ADMIN)
+@Throttle({ admin: {} })
 export class AdminQuestionsController {
   constructor(
     /**