replace static stu email with dynamic user-setting var (#93)

Co-authored-by: bluehorn07 <[email protected]>

Author: hyojeongyunn

src/popo/setting/setting.dto.ts

@@ -1,6 +1,7 @@
 import { IsFile, MaxFileSize, MemoryStoredFile } from 'nestjs-form-data';
 export class PopoSettingDto {
   readonly popo_crm_mail: string; // CRM = 고객 관계 관리
+  readonly stu_email: string; // 총학 이메일: [email protected]
   readonly donyeon_bank: string; // ex. 카카오뱅크 12345-6789-10 (홍길동)
   readonly dongyeon_service_time: string; // ex. 학기중 평일 12:30 ~ 13:30
   readonly dongyeon_contact: string; // ex. (운영관리부) 0xx-xxxx-xxxx