Merge pull request #113 from cathaaaaand/dev

fix: 프로필 수정 시 닉네임 필수

src/main/java/dnaaaaahtac/wooriforei/domain/user/dto/ProfileRequestDTO.java

@@ -22,6 +22,4 @@ public class ProfileRequestDTO {
     String nation;
 
     String image;
-
-    String phoneNumber;
 }

src/main/java/dnaaaaahtac/wooriforei/domain/user/dto/ProfileResponseDTO.java

@@ -32,6 +32,4 @@ public class ProfileResponseDTO {
     private String image;       // 이미지 URL (미구현)
 
     private Boolean isAdmin;
-
-    private String phoneNumber;
 }

src/main/java/dnaaaaahtac/wooriforei/domain/user/entity/User.java

@@ -23,7 +23,7 @@ public class User extends BaseTimeEntity {
     @Column(length = 50, nullable = false)
     private String username;
 
-    @Column(length = 50)
+    @Column(length = 50, nullable = false)
     private String nickname;
 
     @Column(length = 200, nullable = false)