Fix: 멤버가 영속성 컨텍스트에 존재하지 않은 상태로 조회되어 생기는 오류 해결

src/main/java/notai/auth/AuthArgumentResolver.java

@@ -3,9 +3,11 @@
 
 import jakarta.servlet.http.HttpServletRequest;
 import lombok.RequiredArgsConstructor;
+import notai.member.domain.Member;
 import notai.member.domain.MemberRepository;
 import org.springframework.core.MethodParameter;
 import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.support.WebDataBinderFactory;
 import org.springframework.web.context.request.NativeWebRequest;
 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
@@ -23,14 +25,15 @@ public boolean supportsParameter(MethodParameter parameter) {
     }
 
     @Override
-    public Long resolveArgument(
+    @Transactional(readOnly = true)
+    public Member resolveArgument(
             MethodParameter parameter,
             ModelAndViewContainer mavContainer,
             NativeWebRequest webRequest,
             WebDataBinderFactory binderFactory
     ) {
         HttpServletRequest request = (HttpServletRequest) webRequest.getNativeRequest();
         Long memberId = (Long) request.getAttribute("memberId");
-        return memberRepository.getById(memberId).getId();
+        return memberRepository.getById(memberId);
     }
 }

src/main/java/notai/member/presentation/MemberController.java

@@ -48,8 +48,8 @@ public ResponseEntity<MemberTokenRefreshResponse> refreshToken(
 
     @GetMapping("/me")
     public ResponseEntity<MemberFindResponse> findMyProfile(
-            @Auth Long memberId
+            @Auth Member member
     ) {
-        return ResponseEntity.ok(MemberFindResponse.from(memberQueryService.findById(memberId)));
+        return ResponseEntity.ok(MemberFindResponse.from(member));
     }
 }

src/main/java/notai/member/presentation/response/MemberFindResponse.java

@@ -1,12 +1,12 @@
 package notai.member.presentation.response;
 
-import notai.member.application.result.MemberFindResult;
+import notai.member.domain.Member;
 
 public record MemberFindResponse(
         Long id,
         String nickname
 ) {
-    public static MemberFindResponse from(MemberFindResult result) {
-        return new MemberFindResponse(result.id(), result.nickname());
+    public static MemberFindResponse from(Member member) {
+        return new MemberFindResponse(member.getId(), member.getNickname());
     }
 }