[FEAT] Sign Up API 구현

- 회원가입 성공에 대한 Success Code 정의
- Auth - SignUpUsecase 정의
  - SignUpCommand 타입 파라미터 선언
- 정의한 API 구현

src/main/java/sopt/makers/authentication/application/auth/api/AuthApiController.java

@@ -9,6 +9,7 @@
 import sopt.makers.authentication.usecase.auth.port.in.AuthenticateSocialAccountUsecase;
 import sopt.makers.authentication.usecase.auth.port.in.AuthenticateSocialAccountUsecase.AuthenticateTokenInfo;
 import sopt.makers.authentication.usecase.auth.port.in.CreatePhoneVerificationUsecase;
+import sopt.makers.authentication.usecase.auth.port.in.SignUpUsecase;
 import sopt.makers.authentication.usecase.auth.port.in.VerifyPhoneVerificationUsecase;
 
 import org.springframework.http.HttpHeaders;
@@ -28,6 +29,7 @@ public class AuthApiController implements AuthApi {
   private final CreatePhoneVerificationUsecase createVerificationUsecase;
   private final VerifyPhoneVerificationUsecase verifyVerificationUsecase;
   private final AuthenticateSocialAccountUsecase authenticateSocialAccountUsecase;
+  private final SignUpUsecase signUpUsecase;
   private final CookieUtil cookieUtil;
 
   @Override
@@ -74,4 +76,11 @@ public ResponseEntity<BaseResponse<?>> authenticateSocialAuthInfoFromApp(
         AuthResponse.AuthenticateSocialAuthInfoForApp.of(
             tokenInfo.accessToken(), tokenInfo.refreshToken()));
   }
+
+  @Override
+  @PostMapping("/signup")
+  public ResponseEntity<BaseResponse<?>> signUp(AuthRequest.SignUp signUp) {
+    signUpUsecase.signUp(signUp.toCommand());
+    return ResponseUtil.success(AuthSuccess.CREATE_SIGN_UP_USER);
+  }
 }

src/main/java/sopt/makers/authentication/support/code/domain/success/AuthSuccess.java

@@ -18,6 +18,7 @@ public enum AuthSuccess implements SuccessCode {
 
   // 201
   CREATE_PHONE_VERIFICATION(HttpStatus.CREATED, "번호 인증 생성에 성공했습니다."),
+  CREATE_SIGN_UP_USER(HttpStatus.CREATED, "회원 가입에 성공했습니다."),
   ;
 
   private final HttpStatus status;

src/main/java/sopt/makers/authentication/usecase/auth/port/in/SignUpUsecase.java

@@ -0,0 +1,10 @@
+package sopt.makers.authentication.usecase.auth.port.in;
+
+import sopt.makers.authentication.domain.auth.AuthPlatform;
+
+public interface SignUpUsecase {
+
+  void signUp(SignUpCommand command);
+
+  record SignUpCommand(String name, String phone, String authCode, AuthPlatform authPlatform) {}
+}