fix: macOS 上 openclaw_command import 加 cfg 条件编译，消除 unused_imports

Author: 1186258278

src-tauri/src/commands/config.rs

@@ -1,3 +1,4 @@
+#[cfg(not(target_os = "macos"))]
 use crate::utils::openclaw_command;
 /// 配置读写命令
 use serde_json::Value;