implement websocket in TS

[afsalthaj]

This PR raised against: #3039 , which has WIT changes and host implementation

Also this PR requires: golemcloud/wasm-rquickjs#83

TS agent

import { agent, BaseAgent } from "@golemcloud/golem-ts-sdk";

@agent()
class WebSocketTest extends BaseAgent {
    constructor(name: string) {
        super();
    }

    async echo(url: string, msg: string): Promise<string> {
        return new Promise((resolve, reject) => {
            const ws = new WebSocket(url);
            ws.onopen = () => ws.send(msg);
            ws.onmessage = (event) => { ws.close(); resolve(event.data); };
            ws.onerror = (event) => reject(new Error(event.message));
        });
    }
}

Server

npx wscat --listen 9090  
Listening on port 9090 (press CTRL+C to quit)
Client connected
< hello websocket
> hi
Disconnected (code: 1000, reason: "")

Test

~/my-ts ❯
~/my-ts ❯ golem agent invoke 'WebSocketTest("t1")' 'echo' '"ws://localhost:9090"' '"hello websocket"'

Using generated idempotency key: dfbf4f8a-84a3-4d48-b4c5-cb52653fa406
Selected app: my-ts, env: local, server: local - builtin (http://localhost:9881)
Fuzzy matched pattern echo as echo
Invoking agent my:ts/WebSocketTest("t1")/echo
[2026-03-20T05:36:25.874Z] [INVOKE  ] STARTED  golem:agent/guest@1.5.0.{invoke} (dfbf4f8a-84a3-4d48-b4c5-cb52653fa406)
[2026-03-20T05:36:38.116Z] [INVOKE  ] FINISHED echo (dfbf4f8a-84a3-4d48-b4c5-cb52653fa406)
[2026-03-20T05:36:38.118Z] [STREAM  ] Stream closed

Invocation results in TypeScript syntax:
  - "hi"
~/my-ts ❯

[afsalthaj]

Change this before merge!