fix(exit): point clients back to direct when macOS quits the app

Cmd+Q, Dock "Quit" and logout/shutdown go through applicationWillTerminate,
which Tauri reports only as RunEvent::Exit, never as ExitRequested. The
exit handler only ran the cleanup on ExitRequested, so quitting this way
left Claude Code / Codex / Gemini / Grok Build pointed at the stopped local
proxy until CC Switch was started again.

Run the same cleanup on RunEvent::Exit: it is spawned onto the async
runtime and the main thread waits for it with an 8 s cap, so a step that
needs the main thread cannot hang the quit. Restart requests also end in
RunEvent::Exit; they are flagged and skipped so the restart keeps Tauri's
default path.

src-tauri/src/lib.rs

@@ -76,7 +76,6 @@ pub use store::AppState;
 use tauri_plugin_deep_link::DeepLinkExt;
 use tauri_plugin_dialog::{DialogExt, MessageDialogButtons, MessageDialogKind};
 
-#[cfg(target_os = "windows")]
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::{fmt, sync::Arc};
 use tauri::tray::{TrayIconBuilder, TrayIconEvent};
@@ -1774,6 +1773,7 @@ pub fn run() {
                 //     与所有 Tauri 应用默认重启路径的行为一致，无需额外等待
                 ExitRequestAction::DeferToTauriRestart => {
                     log::info!("收到重启请求 (code={code:?})，交由 Tauri 默认重启流程 re-exec");
+                    RESTART_REQUESTED.store(true, Ordering::SeqCst);
                     return;
                 }
                 // 其它 Some(_)：用户主动调用 app.exit() 退出（如托盘菜单"退出"），
@@ -1804,6 +1804,16 @@ pub fn run() {
             return;
         }
 
+        // macOS ⌘Q、Dock「退出」、注销关机走系统 terminate，不发 ExitRequested、只发
+        // RunEvent::Exit，回调一返回进程就结束，只能在这里同步补做退出清理。重启也会走到
+        // 这里，照上面 DeferToTauriRestart 的约定交还 Tauri 默认流程，不清理。
+        if matches!(event, RunEvent::Exit) {
+            if !RESTART_REQUESTED.load(Ordering::SeqCst) {
+                cleanup_before_system_exit(app_handle);
+            }
+            return;
+        }
+
         #[cfg(target_os = "macos")]
         {
             match event {
@@ -1916,6 +1926,30 @@ pub async fn cleanup_before_exit(app_handle: &tauri::AppHandle) {
     }
 }
 
+/// 系统终止应用时最多等退出清理这么久：停代理服务自带 5 秒超时，指回直连只是写几个文件。
+const SYSTEM_EXIT_CLEANUP_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(8);
+
+/// 系统直接终止应用时（macOS ⌘Q、Dock「退出」、注销关机）的退出清理。
+///
+/// 这条路没有 `ExitRequested` 可以 `prevent_exit()` 再异步清理，只能在主线程上等清理做完。
+/// 清理放到异步运行时的线程上跑、主线程限时等：万一里面有步骤要等主线程，超时后照常退出，
+/// 不会把进程卡住。
+fn cleanup_before_system_exit(app_handle: &tauri::AppHandle) {
+    log::info!("系统终止应用，开始退出清理...");
+    let handle = app_handle.clone();
+    let task = tauri::async_runtime::spawn(async move { cleanup_before_exit(&handle).await });
+    // timeout 要在运行时里构造（它取当前运行时的计时器），所以包一层 async。
+    let finished = tauri::async_runtime::block_on(async move {
+        tokio::time::timeout(SYSTEM_EXIT_CLEANUP_TIMEOUT, task).await
+    });
+    if finished.is_err() {
+        log::warn!(
+            "退出清理 {} 秒内没做完，直接退出",
+            SYSTEM_EXIT_CLEANUP_TIMEOUT.as_secs()
+        );
+    }
+}
+
 /// 主动从系统托盘移除托盘图标。
 ///
 /// `std::process::exit` 会绕过 Tauri 运行时，触发不了 `TrayIcon::drop()`，
@@ -2170,6 +2204,9 @@ enum ExitRequestAction {
     CleanupAndExit,
 }
 
+/// 收到过重启请求。重启时 Tauri 也会发 `RunEvent::Exit`，靠它跳过系统终止那条清理。
+static RESTART_REQUESTED: AtomicBool = AtomicBool::new(false);
+
 fn classify_exit_request(code: Option<i32>) -> ExitRequestAction {
     match code {
         None => ExitRequestAction::StayInTray,

src-tauri/src/tray.rs

@@ -1916,7 +1916,8 @@ fn build_menu_model(
     ));
     menu.push(TrayEntry::Separator);
     menu.push(TrayEntry::item("open_website", texts.open_website));
-    // 不能换成系统自带的 quit：它会跳过 app.exit(0) 的清理（客户端指回直连、停服务）。
+    // 不换成系统自带的 quit：它不经过 app.exit(0) 的退出流程，客户端指回直连、停服务只能在
+    // RunEvent::Exit 里限时补做（见 lib.rs 的 cleanup_before_system_exit）。
     // 有应用在用路由服务时把这个后果写在「退出」上（后果不进说明，写在按钮文字里）。
     menu.push(TrayEntry::item(
         "quit",