debug: add an old-school alert

src/components/QRScanner/QRScannerDialog.vue

@@ -285,8 +285,8 @@ export default class QRScannerDialog extends Vue {
       this.isInitializing = false;
       this.cameraStatus = "Ready (timeout fallback)";
       this.initializationStatus = "Camera ready (fallback)";
-      // Optionally log a warning or show a subtle message
-    }, 4000); // 4 seconds
+      alert("Timeout fallback triggered");
+    }, 4000);
 
     try {
       await promise;