feat(knowledge): 优化文档详情弹窗功能

- 在 QAModel 和 TextModel 组件中添加关闭按钮，方便用户关闭弹窗
- 设置 wrapperClosable为 false，防止点击遮罩层时意外关闭弹窗

src/views/knowledge/detail/components/documentDetail/QAModel.vue

@@ -30,6 +30,7 @@
     <el-drawer
       title="问答详情"
       :visible.sync="dialogVisible"
+      :wrapperClosable="false"
       width="50%"
       append-to-body
       :modal="false"
@@ -98,6 +99,7 @@
         </div>
       </div>
       <div class="dialog-footer text-right">
+        <el-button @click="dialogVisible = false" size="medium">关闭</el-button>
         <el-button @click="saveUS" size="medium" type="primary">保存</el-button>
       </div>
     </el-drawer>

src/views/knowledge/detail/components/documentDetail/TextModel.vue

@@ -41,6 +41,7 @@
     <!-- 弹窗 -->
     <el-drawer
       title="分段详情"
+      :wrapperClosable="false"
       :visible.sync="dialogVisible"
       :modal="false"
       append-to-body
@@ -98,6 +99,7 @@
         </div>
       </div>
       <div class="text-right">
+        <el-button @click="dialogVisible = false" size="medium">关闭</el-button>
         <el-button @click="saveUS" size="medium" type="primary">保存</el-button>
       </div>
     </el-drawer>