Features
- Add error check for invalid user agreement
([49](https://github.com/Python-roborock/python-roborock/pull/49),
[`0374449`](https://github.com/Python-roborock/python-roborock/commit/0374449d7280c93ceb772b7fbe009c6d19d0c462))
* minor: add error check for invalid user agreement
* fix: lint
* feat: add no user agreement error
* fix: version issue
* fix: added account to str