fix: close Pi subagent review gaps

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

@@ -0,0 +1,43 @@
+import { spawn } from 'node:child_process';
+import { mkdtemp, rm } from 'node:fs/promises';
+import { tmpdir } from 'node:os';
+import { join, resolve } from 'node:path';
+
+import { bundlePiRuntime } from './bundle-pi-runtime.mjs';
+import { defaultPiBundleTarget } from './lib/pi-runtime-bundle.mjs';
+
+function runVitest(runtimeRoot) {
+  return new Promise((resolvePromise, reject) => {
+    const child = spawn(process.execPath, [
+      resolve('node_modules/vitest/vitest.mjs'),
+      'run',
+      'tests/unit/pi-worker-process-real.test.ts',
+    ], {
+      cwd: process.cwd(),
+      env: { ...process.env, MAKELORE_PI_STAGED_RUNTIME_ROOT: runtimeRoot },
+      stdio: 'inherit',
+      windowsHide: true,
+    });
+    child.once('error', reject);
+    child.once('exit', (code, signal) => {
+      if (code === 0) resolvePromise();
+      else {
+        reject(new Error(
+          `Packaged subagent smoke failed with code ${code ?? 'null'} signal ${signal ?? 'none'}`,
+        ));
+      }
+    });
+  });
+}
+
+const outputRoot = await mkdtemp(join(tmpdir(), 'makelore-pi-subagent-package-'));
+try {
+  const [bundle] = await bundlePiRuntime({
+    outputRoot,
+    targets: [defaultPiBundleTarget()],
+  });
+  if (!bundle) throw new Error('Pi runtime bundler returned no staged runtime');
+  await runVitest(bundle.destination);
+} finally {
+  await rm(outputRoot, { recursive: true, force: true, maxRetries: 5, retryDelay: 200 });
+}