fix(gstack2): harden integrated runtime verification

scripts/gstack2/test-suite.ts

@@ -0,0 +1,22 @@
+#!/usr/bin/env bun
+
+import { collectFreeTestFiles } from '../test-free-shards';
+import { runStrictTestShard } from '../test-free-strict';
+
+const GSTACK2_TEST_TIMEOUT_MS = 30_000;
+const files = collectFreeTestFiles().filter((file) => /^test\/gstack2-.*\.test\.ts$/.test(file));
+
+if (files.length === 0) {
+  throw new Error('No GStack 2 test files were discovered.');
+}
+
+console.log(`[test:gstack2] ${files.length} files across ${files.length} isolated processes`);
+for (let index = 0; index < files.length; index += 1) {
+  const file = files[index];
+  console.log(`[test:gstack2] file ${index + 1}/${files.length}: ${file}`);
+  const exitCode = await runStrictTestShard([file], GSTACK2_TEST_TIMEOUT_MS);
+  if (exitCode !== 0) {
+    process.exitCode = exitCode;
+    break;
+  }
+}