You have commit messages with errors ⧗ input: Add roborock.testing — stateful device simulators for integration testing Introduces a new roborock.testing package that provides stateful firmware simulators, fake transport channels, and cloud environment fakes. This allows downstream consumers (like the Home Assistant integration) to write high-fidelity integration tests using the real client library classes instead of fragile top-level mocks. New modules: - channel.py: FakeChannel in-memory transport implementing Channel protocol - simulator.py: RoborockDeviceSimulator base class - v1_simulator.py: V1VacuumSimulator with stateful command handlers - cloud.py: FakeRoborockCloud with HTTP endpoint mocking Tests split by module: - test_channel.py: FakeChannel subscribe/publish/notify - test_cloud.py: Discovery, login errors, dynamic device addition - test_v1_simulator.py: Trait refresh/reset, state transitions, push updates ✖ subject may not be empty [subject-empty] ✖ type may not be empty [type-empty] ✖ found 2 problems, 0 warnings ⓘ Get help: https://github.com/conventional-changelog/commitlint/#what-is-commitlint ⧗ input: Fix channel_fixtures re-export stripped by ruff ✖ subject may not be empty [subject-empty] ✖ type may not be empty [type-empty] ✖ found 2 problems, 0 warnings ⓘ Get help: https://github.com/conventional-changelog/commitlint/#what-is-commitlint

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