perf: Improve kernel management logic & add more dev mode logs

src-tauri/src/feat.rs

@@ -135,10 +135,36 @@ pub fn toggle_tun_mode() {
 }
 
 pub fn quit(code: Option<i32>) {
+    println!("Starting application quit process");
+    log::info!(target: "app", "Starting application quit process");
+    
     let app_handle = handle::Handle::global().app_handle().unwrap();
     handle::Handle::global().set_is_exiting();
-    resolve::resolve_reset();
-    log_err!(handle::Handle::global().get_window().unwrap().close());
+    
+    // 立即关闭窗口，让用户感知到退出开始
+    if let Some(window) = handle::Handle::global().get_window() {
+        let _ = window.close();
+    }
+    
+    // 后台执行所有清理工作
+    let app_handle_clone = app_handle.clone();
+    tauri::async_runtime::spawn(async move {
+        // 1. 发送停止内核指令
+        let _ = CoreManager::global().stop_core().await;
+        
+        // 2. 重置系统代理
+        resolve::resolve_reset();
+        
+        // 3. 保存窗口状态
+        let _ = app_handle_clone.save_window_state(StateFlags::default());
+        
+        println!("Cleanup tasks completed in background");
+        log::info!(target: "app", "Cleanup tasks completed in background");
+    });
+    
+    // 主线程立即退出
+    println!("Exiting application with code: {:?}", code);
+    log::info!(target: "app", "Exiting application with code: {:?}", code);
     app_handle.exit(code.unwrap_or(0));
 }