fix(pi): strengthen final release proof

scripts/smoke-pi-real.mjs

@@ -1,6 +1,5 @@
 #!/usr/bin/env node
 
-import { spawn } from 'node:child_process';
 import { mkdir, writeFile } from 'node:fs/promises';
 import { arch, platform } from 'node:os';
 import { dirname, resolve } from 'node:path';
@@ -10,25 +9,14 @@ import { verifyPiProductArtifact } from './lib/pi-product-artifact.mjs';
 import { runLocalProviderContracts } from './probe-pi-provider-contracts.mjs';
 import { parsePiArtifactVerifierArgs } from './verify-pi-product-artifact.mjs';
 import { runProbe } from './probe-pi-runtime.mjs';
+import { runPackagedProductProof } from './run-pi-subagent-packaged-smoke.mjs';
 
-function runExtensionSmoke(projectRoot, artifact) {
-  return new Promise((resolvePromise, reject) => {
-    const child = spawn(process.execPath, [
-      resolve(projectRoot, 'scripts', 'run-pi-subagent-packaged-smoke.mjs'),
-      '--runtime-root', artifact.artifact.runtimeRoot,
-      '--electron-executable', artifact.artifact.executable,
-    ], {
-      cwd: projectRoot,
-      stdio: 'inherit',
-      windowsHide: true,
-    });
-    child.once('error', reject);
-    child.once('exit', (code, signal) => {
-      if (code === 0) resolvePromise({ result: 'pass' });
-      else reject(new Error(
-        `Final product extension/subagent smoke failed with code ${code ?? 'null'} signal ${signal ?? 'none'}`,
-      ));
-    });
+async function runExtensionSmoke(projectRoot, artifact) {
+  return await runPackagedProductProof({
+    projectRoot,
+    runtimeRoot: artifact.artifact.runtimeRoot,
+    electronExecutable: artifact.artifact.executable,
+    reportPath: undefined,
   });
 }