[Fix]: 컨벤션 fix, lint

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/controller/user/UserController.java

@@ -3,6 +3,7 @@
 
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import org.haedal.zzansuni.core.api.ApiResponse;
 import org.haedal.zzansuni.domain.user.UserService;
@@ -35,7 +36,7 @@ public ApiResponse<UserRes.UserInfoDto> getUserInfo(
     @Operation(summary = "내 정보 수정", description = "내 정보를 수정한다.")
     @PatchMapping("/api/user")
     public ApiResponse<Void> updateUser(
-            @RequestBody UserReq.UserUpdateRequest request,
+            @Valid @RequestBody UserReq.UserUpdateRequest request,
             @AuthenticationPrincipal JwtUser jwtUser
     ) {
         var command = request.toCommand();

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/controller/user/UserReq.java

@@ -1,10 +1,13 @@
 package org.haedal.zzansuni.controller.user;
 
+import jakarta.validation.constraints.NotBlank;
 import org.haedal.zzansuni.domain.user.UserCommand;
 
 public class UserReq {
-    public record UserUpdateRequest(String nickname){
-        public UserCommand.Update toCommand(){
+    public record UserUpdateRequest(
+            @NotBlank(message = "nickname은 필수입니다.") String nickname
+    ) {
+        public UserCommand.Update toCommand() {
             return UserCommand.Update.builder()
                     .nickname(nickname)
                     .build();

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/user/User.java

@@ -11,7 +11,8 @@
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
 @Table(name = "users")
 public class User {
-    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
     @Column(nullable = false)

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/user/UserModel.java

@@ -2,7 +2,7 @@
 
 public class UserModel {
 
-    public static UserModel from(User user){
+    public static UserModel from(User user) {
         throw new UnsupportedOperationException("Not supported yet.");
     }
 }

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/user/UserReader.java

@@ -4,5 +4,6 @@
 
 public interface UserReader {
     User getById(Long id);
-    Optional<User> getByAuthToken(String authToken);
+
+    Optional<User> findByAuthToken(String authToken);
 }

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/domain/user/UserService.java

@@ -14,7 +14,7 @@ public class UserService {
      * 수정해야할 정보를 받고 해당 값으로 모두 업데이트
      */
     @Transactional
-    public void updateUser(Long id, UserCommand.Update userUpdate){
+    public void updateUser(Long id, UserCommand.Update userUpdate) {
         User user = userReader.getById(id);
         user.update(userUpdate);
     }

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/infrastructure/user/UserReaderImpl.java

@@ -19,7 +19,7 @@ public User getById(Long id) {
     }
 
     @Override
-    public Optional<User> getByAuthToken(String authToken) {
+    public Optional<User> findByAuthToken(String authToken) {
         return userRepository.findByAuthToken(authToken);
     }
 }

zzansuni-api-server/app/src/main/java/org/haedal/zzansuni/infrastructure/user/UserStoreImpl.java

@@ -9,6 +9,7 @@
 @RequiredArgsConstructor
 public class UserStoreImpl implements UserStore {
     private final UserRepository userRepository;
+
     @Override
     public User store(User user) {
         return userRepository.save(user);