Vendor OpenClaw source as Adolf fork baseline

Adolf is a fork/vendored clone of github.com/openclaw/openclaw (v2026.6.11),
free to diverge. Tree copied sans upstream .git; upstream remote added for
future syncs. Node pinned to 24 (.nvmrc); engines already require >=22.19.
Preserves docs/ARCHITECTURE.md.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LeqyaxJF2nbRXJtae2kNB2

test/extension-package-tsc-boundary.test.ts

@@ -0,0 +1,38 @@
+// Extension package TypeScript boundary tests cover package compile isolation.
+import { spawnSync } from "node:child_process";
+import { resolve } from "node:path";
+import { describe, expect, it } from "vitest";
+
+const REPO_ROOT = resolve(import.meta.dirname, "..");
+const CHECK_EXTENSION_PACKAGE_BOUNDARY_BIN = resolve(
+  REPO_ROOT,
+  "scripts/check-extension-package-tsc-boundary.mjs",
+);
+const SHOULD_RUN_BOUNDARY_SCRIPT_WRAPPER =
+  process.env.OPENCLAW_RUN_EXTENSION_PACKAGE_BOUNDARY_TEST === "1";
+
+function runNode(args: string[], timeout: number) {
+  return spawnSync(process.execPath, args, {
+    cwd: REPO_ROOT,
+    encoding: "utf8",
+    maxBuffer: 16 * 1024 * 1024,
+    timeout,
+  });
+}
+
+// The CI check-additional job and package scripts run this script directly. Keep this
+// wrapper opt-in so full Vitest runs do not duplicate the cold extension compile.
+describe.skipIf(!SHOULD_RUN_BOUNDARY_SCRIPT_WRAPPER)(
+  "opt-in extension package TypeScript boundaries",
+  () => {
+    it("typechecks each opt-in extension cleanly through @openclaw/plugin-sdk", () => {
+      const result = runNode([CHECK_EXTENSION_PACKAGE_BOUNDARY_BIN, "--mode=compile"], 420_000);
+      expect(result.status, `${result.stdout}\n${result.stderr}`).toBe(0);
+    }, 300_000);
+
+    it("fails when opt-in extensions import src/cli through a relative path", () => {
+      const result = runNode([CHECK_EXTENSION_PACKAGE_BOUNDARY_BIN, "--mode=canary"], 180_000);
+      expect(result.status, `${result.stdout}\n${result.stderr}`).toBe(0);
+    });
+  },
+);