라이브 편집 인용과 멀티라인 입력 보정

components/content/ContentMarkdownCalloutEditor.vue

@@ -84,6 +84,15 @@ const normalizeBodyLines = (payload) => {
 const onBodyCommit = (payload) => {
   commitCalloutLines(normalizeBodyLines(payload))
 }
+
+/**
+ * 본문 입력 중 마크다운을 동기화한다.
+ * @param {string|{ value?: string }} payload - 편집 페이로드
+ * @returns {void}
+ */
+const onBodyInput = (payload) => {
+  commitCalloutLines(normalizeBodyLines(payload))
+}
 </script>
 
 <template>
@@ -105,6 +114,7 @@ const onBodyCommit = (payload) => {
         :source-line="bodySourceLine"
         :source-line-count="bodyLines.length"
         :model-value="modelValue"
+        @input="onBodyInput"
         @commit="onBodyCommit"
         @delete-line="emit('delete-line', $event)"
         @insert-below="emit('insert-below', $event)"