优化：移除重复逻辑和语法高亮支持

- 提取文件列表排序公共函数 sortFileList
- 统一应用文件夹优先排序规则
- 移除生产环境 source map，减小打包体积
- 提升代码可维护性

web/src/components/FileSystem/index-simple.vue

@@ -24,6 +24,7 @@
 <script setup lang="ts">
 import { ref, computed, onMounted } from 'vue'
 import { Message } from '@arco-design/web-vue'
+import { sortFileList } from '@/utils/fileUtils'
 
 // 导入子组件
 import Toolbar from './components/Toolbar.vue'
@@ -138,6 +139,7 @@ const loadDirectory = async (path: string) => {
   fileLoading.value = true
   try {
     fileList.value = await listDirectory(path)
+    fileList.value = sortFileList(fileList.value)
     console.log('Files loaded:', fileList.value.length)
   } catch (error) {
     console.error('Load directory error:', error)