refactor: Replace tokio::spawn with AsyncHandler::spawn for better task management

- Replace direct tokio::spawn calls with AsyncHandler::spawn across multiple modules
- Improves task lifecycle management and error handling consistency
- Affected files:
  - src-tauri/src/cmd/network.rs
  - src-tauri/src/core/core.rs
  - src-tauri/src/core/event_driven_proxy.rs
  - src-tauri/src/enhance/tun.rs
  - src-tauri/src/ipc/logs.rs
  - src-tauri/src/ipc/memory.rs
  - src-tauri/src/ipc/monitor.rs
  - src-tauri/src/ipc/traffic.rs
  - src-tauri/src/utils/network.rs
  - src-tauri/src/utils/resolve.rs

This change provides better control over async task spawning and helps prevent
potential issues with unmanaged background tasks.

src-tauri/src/enhance/tun.rs

@@ -1,5 +1,8 @@
 use serde_yaml::{Mapping, Value};
 
+#[cfg(target_os = "macos")]
+use crate::process::AsyncHandler;
+
 macro_rules! revise {
     ($map: expr, $key: expr, $val: expr) => {
         let ret_key = Value::String($key.into());
@@ -59,7 +62,7 @@ pub fn use_tun(mut config: Mapping, enable: bool) -> Mapping {
 
             #[cfg(target_os = "macos")]
             {
-                tokio::spawn(async {
+                AsyncHandler::spawn(move || async move {
                     crate::utils::resolve::restore_public_dns().await;
                     crate::utils::resolve::set_public_dns("223.6.6.6".to_string()).await;
                 });
@@ -71,7 +74,7 @@ pub fn use_tun(mut config: Mapping, enable: bool) -> Mapping {
     } else {
         // TUN未启用时，仅恢复系统DNS，不修改配置文件中的DNS设置
         #[cfg(target_os = "macos")]
-        tokio::spawn(async {
+        AsyncHandler::spawn(move || async move {
             crate::utils::resolve::restore_public_dns().await;
         });
     }