Create a Hyperbrowser cloud browser session via the REST API and connect Playwright or Puppeteer over CDP

Documented steps

1. POST https://api.hyperbrowser.ai/api/session with header 'x-api-key: <YOUR_API_KEY>' and 'Content-Type: application/json'; send '{}' for defaults or a JSON body of CreateSessionParams (e.g. {"acceptCookies":true,"useStealth":true,"timeoutMinutes":30}).
2. Response is a SessionDetail object: {id, status, wsEndpoint, liveUrl, sessionUrl, createdAt, launchState, creditsUsed}. Save 'id' and 'wsEndpoint' (a wss:// URL).
3. Connect Playwright: chromium.connectOverCDP(session.wsEndpoint); use browser.contexts()[0] and its existing pages()[0] rather than opening a new page.
4. Connect Puppeteer instead: puppeteer.connect({ browserWSEndpoint: session.wsEndpoint, defaultViewport: null }).
5. Drive the page normally (page.goto, page.evaluate, etc.); watch it live at session.liveUrl while it runs.
6. Always stop the session when done: PUT https://api.hyperbrowser.ai/api/session/{id}/stop with the x-api-key header (SDK: client.sessions.stop(session.id)); wrap usage in try/finally so stop always runs.
7. SDK shortcut: `const client = new Hyperbrowser({ apiKey })` then `await client.sessions.create()` / `client.sessions.stop(id)` (Node: @hyperbrowser/sdk + playwright-core/puppeteer-core; Python: hyperbrowser package, session.ws_endpoint). Ref: https://docs.hyperbrowser.ai/get-started/quickstart