feat(proxy): cleanup proxy server on app exit and remove unused non-takeover mode

- Add cleanup_before_exit() to gracefully stop proxy and restore live configs
- Handle ExitRequested event to catch Cmd+Q, Alt+F4, and tray quit
- Use std::process::exit(0) after cleanup to avoid infinite loop
- Remove unused start_proxy_server and stop_proxy_server commands
- Remove unused startMutation and stopMutation from useProxyStatus hook
- Simplify API to only expose takeover mode (start_proxy_with_takeover/stop_proxy_with_restore)

src-tauri/src/commands/proxy.rs

@@ -7,14 +7,6 @@ use crate::proxy::types::*;
 use crate::proxy::{CircuitBreakerConfig, CircuitBreakerStats};
 use crate::store::AppState;
 
-/// 启动代理服务器
-#[tauri::command]
-pub async fn start_proxy_server(
-    state: tauri::State<'_, AppState>,
-) -> Result<ProxyServerInfo, String> {
-    state.proxy_service.start().await
-}
-
 /// 启动代理服务器（带 Live 配置接管）
 #[tauri::command]
 pub async fn start_proxy_with_takeover(
@@ -23,12 +15,6 @@ pub async fn start_proxy_with_takeover(
     state.proxy_service.start_with_takeover().await
 }
 
-/// 停止代理服务器
-#[tauri::command]
-pub async fn stop_proxy_server(state: tauri::State<'_, AppState>) -> Result<(), String> {
-    state.proxy_service.stop().await
-}
-
 /// 停止代理服务器（恢复 Live 配置）
 #[tauri::command]
 pub async fn stop_proxy_with_restore(state: tauri::State<'_, AppState>) -> Result<(), String> {

src-tauri/src/lib.rs

@@ -647,9 +647,7 @@ pub fn run() {
             commands::set_auto_launch,
             commands::get_auto_launch_status,
             // Proxy server management
-            commands::start_proxy_server,
             commands::start_proxy_with_takeover,
-            commands::stop_proxy_server,
             commands::stop_proxy_with_restore,
             commands::get_proxy_status,
             commands::get_proxy_config,
@@ -691,6 +689,22 @@ pub fn run() {
         .expect("error while running tauri application");
 
     app.run(|app_handle, event| {
+        // 处理退出请求（所有平台）
+        if let RunEvent::ExitRequested { api, .. } = &event {
+            log::info!("收到退出请求，开始清理...");
+            // 阻止立即退出，执行清理
+            api.prevent_exit();
+
+            let app_handle = app_handle.clone();
+            tauri::async_runtime::spawn(async move {
+                cleanup_before_exit(&app_handle).await;
+                log::info!("清理完成，退出应用");
+                // 使用 std::process::exit 避免再次触发 ExitRequested
+                std::process::exit(0);
+            });
+            return;
+        }
+
         #[cfg(target_os = "macos")]
         {
             match event {
@@ -770,6 +784,44 @@ pub fn run() {
     });
 }
 
+// ============================================================
+// 应用退出清理
+// ============================================================
+
+/// 应用退出前的清理工作
+///
+/// 在应用退出前检查代理服务器状态，如果正在运行则停止代理并恢复 Live 配置。
+/// 确保 Claude Code/Codex/Gemini 的配置不会处于损坏状态。
+pub async fn cleanup_before_exit(app_handle: &tauri::AppHandle) {
+    if let Some(state) = app_handle.try_state::<store::AppState>() {
+        let proxy_service = &state.proxy_service;
+
+        // 检查代理是否在运行
+        if proxy_service.is_running().await {
+            log::info!("检测到代理服务器正在运行，开始清理...");
+
+            // 检查是否处于 Live 接管模式
+            if let Ok(is_takeover) = state.db.is_live_takeover_active().await {
+                if is_takeover {
+                    // 接管模式：停止并恢复配置
+                    if let Err(e) = proxy_service.stop_with_restore().await {
+                        log::error!("退出时恢复 Live 配置失败: {e}");
+                    } else {
+                        log::info!("已恢复 Live 配置");
+                    }
+                } else {
+                    // 非接管模式：仅停止代理
+                    if let Err(e) = proxy_service.stop().await {
+                        log::error!("退出时停止代理失败: {e}");
+                    }
+                }
+            }
+
+            log::info!("代理服务器清理完成");
+        }
+    }
+}
+
 // ============================================================
 // 迁移错误对话框辅助函数
 // ============================================================