FIX: lib.rs — E0597 borrow, take child ra khoi lock truoc khi kill

src-tauri/src/lib.rs

@@ -28,14 +28,18 @@ pub fn run() {
         .on_window_event(|window, event| {
             // 2. Terminate sidecar khi DAW window dong — tranh orphan process
             if let tauri::WindowEvent::Destroyed = event {
-                let state = window.state::<EngineProcess>();
+                // Lay child ra khoi lock, guard drop ngay tai day (trach E0597)
-                if let Ok(mut lock) = state.0.lock() {
+                let child = window
-                    if let Some(child) = lock.take() {
+                    .state::<EngineProcess>()
+                    .0
+                    .lock()
+                    .ok()
+                    .and_then(|mut lock| lock.take());
+                if let Some(child) = child {
                     let _ = child.kill();
                     println!("daw_engine sidecar terminated.");
                 }
             }
-            }
         })
         .run(tauri::generate_context!())
         .expect("error while running tauri application");