add: local config import and export (#84)

* add: local config import and export

* Fix import refresh flow and typings

* Clarify import refresh messaging

* Limit stored import backups

---------

Co-authored-by: Jason <farion1231@gmail.com>

src/lib/tauri-api.ts

@@ -312,6 +312,54 @@ export const tauriAPI = {
       throw new Error(`检测 Claude 插件配置失败: ${String(error)}`);
     }
   },
+
+  // 导出配置到文件
+  exportConfigToFile: async (filePath: string): Promise<{
+    success: boolean;
+    message: string;
+    filePath: string;
+  }> => {
+    try {
+      return await invoke("export_config_to_file", { filePath });
+    } catch (error) {
+      throw new Error(`导出配置失败: ${String(error)}`);
+    }
+  },
+
+  // 从文件导入配置
+  importConfigFromFile: async (filePath: string): Promise<{
+    success: boolean;
+    message: string;
+    backupId?: string;
+  }> => {
+    try {
+      return await invoke("import_config_from_file", { filePath });
+    } catch (error) {
+      throw new Error(`导入配置失败: ${String(error)}`);
+    }
+  },
+
+  // 保存文件对话框
+  saveFileDialog: async (defaultName: string): Promise<string | null> => {
+    try {
+      const result = await invoke<string | null>("save_file_dialog", { defaultName });
+      return result;
+    } catch (error) {
+      console.error("打开保存对话框失败:", error);
+      return null;
+    }
+  },
+
+  // 打开文件对话框
+  openFileDialog: async (): Promise<string | null> => {
+    try {
+      const result = await invoke<string | null>("open_file_dialog");
+      return result;
+    } catch (error) {
+      console.error("打开文件对话框失败:", error);
+      return null;
+    }
+  },
 };
 
 // 创建全局 API 对象，兼容现有代码