fix: close PI-090 review findings

scripts/run-pi-subagent-packaged-smoke.mjs

@@ -30,6 +30,28 @@ function runVitest(runtimeRoot) {
   });
 }
 
+function runElectronProductTools() {
+  return new Promise((resolvePromise, reject) => {
+    const child = spawn(process.execPath, [
+      resolve('scripts/run-electron-vitest.mjs'),
+      'tests/unit/pi-extension-bundle.test.ts',
+    ], {
+      cwd: process.cwd(),
+      stdio: 'inherit',
+      windowsHide: true,
+    });
+    child.once('error', reject);
+    child.once('exit', (code, signal) => {
+      if (code === 0) resolvePromise();
+      else {
+        reject(new Error(
+          `Packaged product-tools Electron smoke failed with code ${code ?? 'null'} signal ${signal ?? 'none'}`,
+        ));
+      }
+    });
+  });
+}
+
 const outputRoot = await mkdtemp(join(tmpdir(), 'makelore-pi-subagent-package-'));
 try {
   const [bundle] = await bundlePiRuntime({
@@ -38,6 +60,7 @@ try {
   });
   if (!bundle) throw new Error('Pi runtime bundler returned no staged runtime');
   await runVitest(bundle.destination);
+  await runElectronProductTools();
 } finally {
   await rm(outputRoot, { recursive: true, force: true, maxRetries: 5, retryDelay: 200 });
 }