Feat: 로그아웃 API에 대한 응답 추가

- 정상적인 요청 시 204 응답
- 토큰 검사는 JwtAuthGuard에서 진행
- 추후 refresh token이 추가될 것을 고려하여 service 틀 작성

BE/src/auth/auth.controller.ts

@@ -1,9 +1,12 @@
-import { Body, Controller, Post, UseGuards } from "@nestjs/common";
+import { Body, Controller, HttpCode, Post, UseGuards } from "@nestjs/common";
 import { AuthService } from "./auth.service";
 import { AuthCredentialsDto } from "./dto/auth-credential.dto";
 import { AccessTokenDto } from "./dto/auth-access-token.dto";
 import { NoDuplicateLoginGuard } from "./guard/auth.user-guard";
 import { CreateUserDto } from "./dto/users.dto";
+import { User } from "./users.entity";
+import { GetUser } from "./get-user.decorator";
+import { JwtAuthGuard } from "./guard/auth.jwt-guard";
 
 @Controller("auth")
 export class AuthController {
@@ -22,4 +25,11 @@ export class AuthController {
   ): Promise<AccessTokenDto> {
     return this.authService.signIn(authCredentialsDto);
   }
+
+  @Post("/signout")
+  @UseGuards(JwtAuthGuard)
+  @HttpCode(204)
+  signOut(@GetUser() user: User): void {
+    this.authService.signOut(user);
+  }
 }

BE/src/auth/auth.service.ts

@@ -37,4 +37,8 @@ export class AuthService {
       throw new NotFoundException("올바르지 않은 비밀번호입니다.");
     }
   }
+
+  signOut(user: User): void {
+    // const hasRefreshToken = true;
+  }
 }