refactor: remove port_scanner dependency and simplify port checking logic

src-tauri/src/utils/server.rs

@@ -1,5 +1,6 @@
 use super::resolve;
 use crate::{
+    cmd::is_port_in_use,
     config::{Config, DEFAULT_PAC, IVerge},
     module::lightweight,
     process::AsyncHandler,
@@ -9,7 +10,6 @@ use anyhow::{Result, bail};
 use clash_verge_logging::{Type, logging, logging_error};
 use once_cell::sync::OnceCell;
 use parking_lot::Mutex;
-use port_scanner::local_port_available;
 use reqwest::ClientBuilder;
 use smartstring::alias::String;
 use std::time::Duration;
@@ -27,7 +27,7 @@ static SHUTDOWN_SENDER: OnceCell<Mutex<Option<oneshot::Sender<()>>>> = OnceCell:
 /// check whether there is already exists
 pub async fn check_singleton() -> Result<()> {
     let port = IVerge::get_singleton_port();
-    if !local_port_available(port) {
+    if is_port_in_use(port) {
         let client = ClientBuilder::new().timeout(Duration::from_millis(500)).build()?;
         // 需要确保 Send
         #[allow(clippy::needless_collect)]