fix: 아이템/칭호 장착 해제 버그 수정 (#99)

Author: jaegyun1011

backend/src/main/java/com/back/domain/member/controller/ApiV1MemberController.java

@@ -240,7 +240,7 @@ public ResponseEntity<ApiResponse<MemberDto>> unequipItem(
             @Valid @RequestBody ItemUnequipReqDto reqBody
     ) {
         Member actor = rq.getActorFromDb();
-        actor.getItems().put(reqBody.type(), null);
+        memberService.unequipItem(actor, reqBody.type());
 
         return ResponseEntity
                 .status(HttpStatus.OK)
@@ -256,7 +256,7 @@ public ResponseEntity<ApiResponse<MemberDto>> unequipItem(
     @Operation(summary = "칭호 장착 해제", description = "현재 장착한 칭호 해제")
     public ResponseEntity<ApiResponse<MemberDto>> unequipTitle() {
         Member actor = rq.getActorFromDb();
-        actor.setTitle(null);
+        memberService.unequipTitle(actor);
 
         return ResponseEntity
                 .status(HttpStatus.OK)

backend/src/main/java/com/back/domain/member/service/MemberService.java

@@ -1,6 +1,7 @@
 package com.back.domain.member.service;
 
 import com.back.domain.item.entity.Item;
+import com.back.domain.item.entity.ItemType;
 import com.back.domain.item.repository.ItemRepository;
 import com.back.domain.member.entity.Member;
 import com.back.domain.member.entity.MemberGender;
@@ -95,7 +96,7 @@ public void delete_social(Member member) {
         authService.delete_social(provider, member.getSocialAccessToken());
     }
 
-    // *** 아이템 획득/장착 ***
+    // *** 아이템&칭호 획득 ***
     public void addItem(Member member, int itemId) {
         Item item = itemRepository.findById(itemId)
                 .orElseThrow(() -> new CustomException(ErrorCode.NOT_FOUND, "[Member] Fail: 존재하지 않는 아이템"));
@@ -108,6 +109,7 @@ public void addTitle(Member member, int titleId) {
         member.addTitle(title);
     }
 
+    // *** 아이템&칭호 장착 ***
     public void equipItem(Member member, int itemId) {
         Item item = itemRepository.findById(itemId)
                 .orElseThrow(() -> new CustomException(ErrorCode.NOT_FOUND, "[Member] Fail: 존재하지 않는 아이템"));
@@ -124,6 +126,15 @@ public void equipTitle(Member member, int titleId) {
         member.setTitle(title);
     }
 
+    // *** 아이템&칭호 장착 해제***
+    public void unequipItem(Member member, ItemType type) {
+        member.getItems().put(type, null);
+    }
+
+    public void unequipTitle(Member member) {
+        member.setTitle(null);
+    }
+
     // *** Modify 메서드 ***
     public void modifyPassword(Member member, String password) {
         member.setPassword(passwordEncoder.encode(password));