build: PaddedCell-style install.mjs + SDK-aligned packaging

install.mjs (--install/--build-only/--uninstall/--openclaw-profile-path),
tsconfig outDir dist/fabric, package.json openclaw file dep + main.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

node_modules/socket.io-client/build/cjs/index.d.ts

@@ -0,0 +1,29 @@
+import { Manager, ManagerOptions } from "./manager.js";
+import { DisconnectDescription, Socket, SocketOptions } from "./socket.js";
+/**
+ * Looks up an existing `Manager` for multiplexing.
+ * If the user summons:
+ *
+ *   `io('http://localhost/a');`
+ *   `io('http://localhost/b');`
+ *
+ * We reuse the existing instance based on same scheme/port/host,
+ * and we initialize sockets for each namespace.
+ *
+ * @public
+ */
+declare function lookup(opts?: Partial<ManagerOptions & SocketOptions>): Socket;
+declare function lookup(uri?: string, opts?: Partial<ManagerOptions & SocketOptions>): Socket;
+/**
+ * Protocol version.
+ *
+ * @public
+ */
+export { protocol } from "socket.io-parser";
+/**
+ * Expose constructors for standalone build.
+ *
+ * @public
+ */
+export { DisconnectDescription, Manager, ManagerOptions, Socket, SocketOptions, lookup as io, lookup as connect, lookup as default, };
+export { Fetch, NodeXHR, XHR, NodeWebSocket, WebSocket, WebTransport, } from "engine.io-client";