fix: prevent duplicate desktop notifications

packages/ui/src/App.tsx

@@ -386,6 +386,7 @@ function App({ apis }: AppProps) {
           title?: string;
           body?: string;
           tag?: string;
+          desktopStdoutActive?: boolean;
         };
       };
 
@@ -401,6 +402,10 @@ function App({ apis }: AppProps) {
         return;
       }
 
+      if (payload.properties?.desktopStdoutActive === true) {
+        return;
+      }
+
       const tag = typeof payload.properties?.tag === 'string' ? payload.properties.tag : '';
       if (tag) {
         const now = Date.now();