fix(exit): taskkill rieng tung process — kill het plugin_host/fx_vst_bridge khi thoat app (truoc day /IM gop chi chay lenh dau); CREATE_NO_WINDOW cho moi subprocess engine (het terminal chớp chớp)

src-tauri/src/lib.rs

@@ -737,13 +737,15 @@ pub fn run() {
                     // dot ngot (watchdog graceful shutdown treo vi LAN client).
                     // Task Manager dong app -> Destroyed khong chay -> engine tu
                     // thoat nho watchdog; o day dong app binh thuong -> quet het.
-                    let _ = std::process::Command::new("taskkill")
-                        .args(["/IM", "daw_engine.exe", "/T", "/F"])
-                        .status();
-                    let _ = std::process::Command::new("taskkill")
-                        .args(["/IM", "daw_vst_bridge.exe", "/T", "/F",
-                        "/IM", "fx_vst_bridge.exe", "/T", "/F"])
-                        .status();
+                    // taskkill chi nhan MOT /IM moi lan goi — goi rieng cho tung
+                    // process, khong gop /IM ... /IM (truoc day chi cai dau chay,
+                    // fx_vst_bridge/plugin_host song sot thanh orphan).
+                    for im in ["daw_engine.exe", "daw_vst_bridge.exe",
+                               "fx_vst_bridge.exe", "plugin_host.exe"] {
+                        let _ = std::process::Command::new("taskkill")
+                            .args(["/IM", im, "/T", "/F"])
+                            .status();
+                    }
                     window.app_handle().exit(0);
                 }
             }