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

scripts/e2e/lib/plugin-update/registry-server.mjs

@@ -0,0 +1,52 @@
+// Fixture npm registry server for plugin update E2E scenarios.
+import fs from "node:fs";
+import http from "node:http";
+import { readTcpPortEnv } from "../env-limits.mjs";
+
+const portFile = process.argv[2];
+if (!portFile) {
+  console.error("usage: registry-server.mjs <port-file>");
+  process.exit(2);
+}
+
+function buildMetadata(req) {
+  const host = req.headers.host ?? "127.0.0.1";
+  return {
+    name: "@example/lossless-claw",
+    "dist-tags": { latest: "0.9.0" },
+    versions: {
+      "0.9.0": {
+        name: "@example/lossless-claw",
+        version: "0.9.0",
+        dist: {
+          integrity: "sha512-same",
+          shasum: "same",
+          tarball: `http://${host}/@example/lossless-claw/-/lossless-claw-0.9.0.tgz`,
+        },
+      },
+    },
+  };
+}
+
+const server = http.createServer((req, res) => {
+  if (req.url === "/@example%2flossless-claw" || req.url === "/@example%2Flossless-claw") {
+    res.writeHead(200, { "content-type": "application/json" });
+    res.end(JSON.stringify(buildMetadata(req)));
+    return;
+  }
+  res.writeHead(404, { "content-type": "text/plain" });
+  res.end(`not found: ${req.url}`);
+});
+
+const requestedPort =
+  process.env.OPENCLAW_PLUGIN_UPDATE_REGISTRY_PORT === undefined
+    ? 0
+    : readTcpPortEnv("OPENCLAW_PLUGIN_UPDATE_REGISTRY_PORT");
+
+server.listen(requestedPort, "127.0.0.1", () => {
+  const address = server.address();
+  if (!address || typeof address === "string") {
+    throw new Error("plugin update registry did not expose a TCP port");
+  }
+  fs.writeFileSync(portFile, `${address.port}\n`);
+});