优化：CSV编辑模式/PDF导出重构/收藏夹bug修复/移除useLocalStorage

- FileEditorPanel: CSV新增预览/编辑切换、PDF导出；提取openPrintWindow公共函数
- useFavorites: 修复find回调中fav变量遮蔽bug（f.path）、sort改为副本排序
- useFavoriteFiles/DeviceTest: 移除useLocalStorage抽象层，直接管理localStorage
- system.ts: createDir/createFile签名改为(parent, name)两参数拼接
- useFileOperations: createNewFile移除无用content参数
- 清理OpenClaw相关Wails绑定

web/src/api/system.ts

@@ -110,23 +110,25 @@ export async function deletePath(path: string): Promise<any> {
 }
 
 /**
- * 创建目录
+ * 创建目录（parentPath + dirname 拼接为完整路径）
  */
-export async function createDir(path: string): Promise<any> {
+export async function createDir(parentPath: string, dirname: string): Promise<any> {
   if (!window.go?.main?.App?.CreateDir) {
     throw new Error('CreateDir API 不可用')
   }
-  return await window.go.main.App.CreateDir(path)
+  const fullPath = parentPath.replace(/\/$/, '') + '/' + dirname
+  return await window.go.main.App.CreateDir(fullPath)
 }
 
 /**
- * 创建文件
+ * 创建文件（dirPath + filename 拼接为完整路径）
  */
-export async function createFile(path: string): Promise<any> {
+export async function createFile(dirPath: string, filename: string): Promise<any> {
   if (!window.go?.main?.App?.CreateFile) {
     throw new Error('CreateFile API 不可用')
   }
-  return await window.go.main.App.CreateFile(path)
+  const fullPath = dirPath.replace(/\/$/, '') + '/' + filename
+  return await window.go.main.App.CreateFile(fullPath)
 }
 
 /**