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!