Catch errors in node main (#4627)

ui/desktop/src/main.ts

@@ -1675,7 +1675,7 @@ const registerGlobalHotkey = (accelerator: string) => {
   }
 };
 
-app.whenReady().then(async () => {
+async function appMain() {
   // Ensure Windows shims are available before any MCP processes are spawned
   await ensureWinShims();
 
@@ -2144,6 +2144,15 @@ app.whenReady().then(async () => {
       return false;
     }
   });
+}
+
+app.whenReady().then(async () => {
+  try {
+    await appMain();
+  } catch (error) {
+    dialog.showErrorBox('Goose Error', `Failed to create main window: ${error}`);
+    app.quit();
+  }
 });
 
 async function getAllowList(): Promise<string[]> {