fix: 채팅방 생성 알림

- 수락 시, 알림이 안가던 문제 수정

Author: HYEONSIKOH

src/main/java/org/dfbf/soundlink/domain/chat/service/ChatRoomService.java

@@ -214,6 +214,7 @@ public ResponseResult createChatRoom(Long userId, Long recordId, String requestN
                 if (chatRoomId.isPresent()) {
                     Map<String, Object> map = new HashMap<>();
                     map.put("chatRoomId", chatRoomId.get());
+                    alertService.send(requestUserId, "accept", map);
                     return new ResponseResult(map);
                 }