Refactor Summernote initialization for consistency and improved readability

WebContent/jsp/onl/transaction/apim/apiSpecManPopup.jsp

@@ -69,6 +69,7 @@
         }
 
         function initializeSummernote() {
+            // Summernote 에디터 초기화 (이미지 붙여넣기 data-uri 방식, 리사이징 지원)
             var commonOptions = {
                 height: 300,
                 toolbar: [
@@ -79,21 +80,12 @@
                     ['table', ['table']],
                     ['insert', ['link', 'picture', 'video']],
                     ['view', ['codeview', 'help']]
-                ],
-                callbacks: {
-                    onInit: function () {
-                        $('.note-editable').on('keydown', function (e) {
-                            if (e.keyCode === 8) {
-                                e.stopPropagation();
-                            }
-                        });
-                    }
-                }
+                ]
             };
 
-            $('#description').summernote(commonOptions);
-            $('#apiRequestSpec').summernote(commonOptions);
-            $('#apiResponseSpec').summernote(commonOptions);
+            initSummernote('#description', commonOptions);
+            initSummernote('#apiRequestSpec', commonOptions);
+            initSummernote('#apiResponseSpec', commonOptions);
         }
 
         function detail(key) {