- Replace aiohttp with camb SDK (AsyncCambAI client)
- Add support for passing existing SDK client instance
- Simplify API: no longer requires aiohttp_session parameter
- Update example to use simplified initialization
- Rewrite tests to mock SDK client instead of HTTP servers
- Add --voice-id CLI argument to example (default: 2681)
- Remove test_camb_quick.py from examples/ (tests belong in tests/)
- Update docstring with new usage