refactor : summary 수정

backend/src/main/java/com/edufocus/edufocus/board/entity/vo/Board.java

@@ -70,7 +70,7 @@ public class Board {
     public ResponseBoardDetailDto makeDetailDto(){
         return ResponseBoardDetailDto.builder()
                 .id(id)
-                .name(user.getEmail())
+                .name(user.getName())
                 .title(title)
                 .content(content)
                 .viewCount(viewCount)

backend/src/test/java/com/edufocus/edufocus/board/controller/BoardControllerTest.java

@@ -0,0 +1,2 @@
+package com.edufocus.edufocus.board.controller;public class BoardControllerTest {
+}