fix: 弹窗打开时锁定背景页面滚动

frontend/src/views/app-config/index.vue

@@ -716,7 +716,13 @@ onMounted(() => {
     </div>
     
     <!-- 编辑对话框 -->
-    <el-dialog v-model="dialogVisible" :title="dialogTitle" width="750px" class="config-dialog">
+    <el-dialog 
+      v-model="dialogVisible" 
+      :title="dialogTitle" 
+      width="750px" 
+      :lock-scroll="true"
+      class="config-dialog"
+    >
       <el-form ref="formRef" :model="form" :rules="rules" label-width="120px" class="config-form">
         <el-form-item label="租户" prop="tenant_id">
           <el-select 
@@ -1067,6 +1073,8 @@ onMounted(() => {
       width="90vw"
       top="5vh"
       :close-on-click-modal="false"
+      :lock-scroll="true"
+      :append-to-body="true"
       class="text-edit-dialog"
     >
       <div class="text-edit-wrapper">