feat(index): 新增页眉显示控制并重构模板结构

新增page_header.disabled配置项以控制页眉区域显示，重构模板结构优化代码可读性与维护性

 <!--
  * @Date: 2022-07-18 10:22:22
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2026-05-25 18:13:47
+ * @LastEditTime: 2026-06-02 14:59:03
  * @FilePath: /data-table/src/views/index.vue
  * @Description: 首页
 -->
@@ -9,6 +9,7 @@
   <van-notice-bar v-if="formSetting.sjsj_is_count_down" left-icon="volume-o" :text="notice_text" scrollable
     mode="closeable" />
   <div v-if="!show_loading" class="table-box">
+    <template v-if="PHeader.show_desc">
       <template v-if="PHeader.visible && (page_type === 'add' || model === 'preview')">
         <van-image v-if="PHeader.type === 'image' && PHeader.cover" width="100%" :src="PHeader.cover + '?imageView2/0/w/2000'" fit="cover" />
         <template v-if="PHeader.type === 'carousel'">
@@ -20,13 +21,14 @@
         <div v-if="PHeader.type === 'text'" class="PHeader-Text" v-html="PHeader.banner" />
       </template>
       <div v-if="PHeader.label" class="table-title" v-html="PHeader.label" />
+      <div v-if="PHeader.description" class="table-desc" v-html="PHeader.description" />
+    </template>
     <!-- TAG：总分支持0分显示，避免因真假值判断被隐藏 -->
     <div
       v-if="PHeader.x_total_score !== undefined && PHeader.x_total_score !== null && PHeader.x_total_score !== ''"
       style="font-weight: bold; color: red; text-align: center; font-size: 0.9rem;"
     >总分: {{ PHeader.x_total_score }}</div>
     <div v-if="PHeader.flow_node_name" style="text-align: center;">({{ PHeader.flow_node_name }})</div>
-    <div v-if="PHeader.description" class="table-desc" v-html="PHeader.description" />
     <van-config-provider :theme-vars="themeVars">
       <van-form ref="myForm" @submit="onSubmit" @failed="onFailed" :scroll-to-error="true">
         <van-cell-group :border="false">
@@ -467,6 +469,7 @@ onMounted(async () => {
    * @param banner_url 页眉图片地址
    * @param description 描述内容
    * @param invisible 页眉展示
+   * @param disabled 描述内容是否显示
    */
   if (page_header) {
     PHeader.value = {
@@ -476,6 +479,7 @@ onMounted(async () => {
       cover: page_header.banner_url,
       banner: page_header.banner,
       visible: !page_header.invisible,
+      show_desc: !page_header.disabled,
       flow_node_name: formSetting.value.flow_node_name ? formSetting.value.flow_node_name : '', // 节点名称
     };
   }