feat(editor): 历史记录差异对比弹窗关闭时派发 close 事件

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/editor/src/layouts/history-list/HistoryDiffDialog.vue

@@ -8,6 +8,7 @@
       destroy-on-close
       append-to-body
       :width="width"
+      @close="onClose"
     >
       <div v-if="payload" class="m-editor-history-diff-dialog-body">
         <div class="m-editor-history-diff-dialog-header">
@@ -105,6 +106,8 @@ const props = withDefaults(
   },
 );
 
+const emit = defineEmits(['close']);
+
 /**
  * 差异对比模式：
  * - before：该步骤修改前 vs 该步骤修改后（默认行为，体现这一步带来的变化）
@@ -209,6 +212,10 @@ watch(visible, (v) => {
   }
 });
 
+const onClose = () => {
+  emit('close');
+};
+
 defineExpose({
   open,
   close,