GoaLoop 0.1.1

- First runtime dependency: python-dotenv>=1.0 (parses ~/.goaloop.env)
- Load ~/.goaloop.env into environment at CLI startup
- Recognize session-limit message as quota (wait, don't die)
- Treat missing `claude` at spawn as transient (backoff-retry)
- Reap detached Runner jobs via opt-in job_cleanup_pattern
- Docs: reframe around loop engineering

GoaLoop 0.1.0 — first PyPI release