Python-клиент robotex: sync/async, сессии, задачи v2, ошибки

Пакет в client/ (зависимость — httpx), установка через pip из git или
wheel (make client-build). Тесты против api и воркера из harness.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -83,6 +83,7 @@ src/
     known_providers/   # cloudflare.py, recaptcha.py
     humanize.py        # human-like mouse moves and typing
   captcha/             # 2captcha solvers: Turnstile, reCAPTCHA, hCaptcha
+client/                # Python client package robotex (pip install, make client-build)
 docs/                  # API, deployment, anti-bot notes
 tests/
   unit/                # pytest without a browser: make test
@@ -148,6 +149,12 @@ Full reference — fields, action types, errors, sessions, v2:
 [docs/API.md](docs/API.md). How to use the API from your client (same UA and proxy as the browser, sessions,
 retries) — [docs/Usage.md](docs/Usage.md).
 
+Python client: [client/README.md](client/README.md).
+
+```bash
+pip install "robotex @ git+https://git.sokolab.xyz/s0k0l/robotex.git@v0.1.0#subdirectory=client"
+```
+
 ## Roadmap
 
 Not done yet: