Merge branch 'Feat/95' of https://github.com/prgrms-web-devcourse-final-project/WEB6_8_Catfe_BE into Feat/95

Author: jueunk617

src/main/java/com/back/domain/chat/room/controller/RoomChatApiController.java

@@ -70,7 +70,6 @@ public ResponseEntity<RsData<ChatClearResponse>> clearRoomMessages(
                 messageCount,
                 clearedByInfo.userId(),
                 clearedByInfo.nickname(),
-                clearedByInfo.profileImageUrl(),
                 clearedByInfo.role()
         );
 

src/main/java/com/back/domain/chat/room/dto/ChatClearResponse.java

@@ -10,19 +10,17 @@ public record ChatClearResponse(
     public record ClearedByDto(
             Long userId,
             String nickname,
-            String profileImageUrl,
             String role
     ) {}
 
     // 성공 응답 생성 헬퍼
     public static ChatClearResponse create(Long roomId, int deletedCount,
-                                           Long userId, String nickname,
-                                           String profileImageUrl, String role) {
+                                           Long userId, String nickname, String role) {
         return new ChatClearResponse(
                 roomId,
                 deletedCount,
                 java.time.LocalDateTime.now(),
-                new ClearedByDto(userId, nickname, profileImageUrl, role)
+                new ClearedByDto(userId, nickname, role)
         );
     }
 }

src/main/java/com/back/global/exception/ErrorCode.java

@@ -64,6 +64,7 @@ public enum ErrorCode {
     WS_USER_NOT_FOUND(HttpStatus.NOT_FOUND, "WS_013", "WebSocket 사용자를 찾을 수 없습니다."),
     WS_INVALID_REQUEST(HttpStatus.BAD_REQUEST, "WS_014", "잘못된 WebSocket 요청입니다."),
     WS_INTERNAL_ERROR(HttpStatus.INTERNAL_SERVER_ERROR, "WS_015", "WebSocket 내부 오류가 발생했습니다."),
+    WS_CHAT_DELETE_FORBIDDEN(HttpStatus.FORBIDDEN, "WS_016", "채팅 삭제 권한이 없습니다. 방장 또는 부방장만 가능합니다."),
 
     // ======================== 공통 에러 ========================
     BAD_REQUEST(HttpStatus.BAD_REQUEST, "COMMON_400", "잘못된 요청입니다."),

src/main/java/com/back/global/websocket/util/WebSocketErrorHelper.java

@@ -24,7 +24,12 @@ public void sendErrorToUser(String sessionId, String errorCode, String errorMess
 
     // CustomException을 WebSocket 에러로 전송
     public void sendCustomExceptionToUser(String sessionId, CustomException exception) {
-        sendErrorToUser(sessionId, exception.getErrorCode().getCode(), exception.getMessage());
+        String errorCode = switch (exception.getErrorCode()) {
+            case CHAT_DELETE_FORBIDDEN -> "WS_016";
+            default -> exception.getErrorCode().getCode();
+        };
+
+        sendErrorToUser(sessionId, errorCode, exception.getMessage());
     }
 
     // 일반 Exception을 기본 WebSocket 에러로 전송