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/engine.io-client/build/esm-debug/transports/websocket.d.ts

@@ -0,0 +1,36 @@
+import { Transport } from "../transport.js";
+import type { Packet, RawData } from "engine.io-parser";
+export declare abstract class BaseWS extends Transport {
+    protected ws: any;
+    get name(): string;
+    doOpen(): this;
+    abstract createSocket(uri: string, protocols: string | string[] | undefined, opts: Record<string, any>): any;
+    /**
+     * Adds event listeners to the socket
+     *
+     * @private
+     */
+    private addEventListeners;
+    write(packets: any): void;
+    abstract doWrite(packet: Packet, data: RawData): any;
+    doClose(): void;
+    /**
+     * Generates uri for connection.
+     *
+     * @private
+     */
+    private uri;
+}
+/**
+ * WebSocket transport based on the built-in `WebSocket` object.
+ *
+ * Usage: browser, Node.js (since v21), Deno, Bun
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket
+ * @see https://caniuse.com/mdn-api_websocket
+ * @see https://nodejs.org/api/globals.html#websocket
+ */
+export declare class WS extends BaseWS {
+    createSocket(uri: string, protocols: string | string[] | undefined, opts: Record<string, any>): any;
+    doWrite(_packet: Packet, data: RawData): void;
+}