- Add `DepartmentLaneDynamicImageRouteTest` to verify dynamic image preview handling for studio lanes.
- Introduce `selfserve_machine_signal` class to standardize signal normalization, recording, and gateway signal management workflows.
- Add `selfserve_virtual_hardware` class to handle virtual hardware configurations, including gateway and binding management.
- Enhance structure with auxiliary methods for payload normalization, workspace merging, and validation warnings.
- Extend `department_selfserve_tasks_o` with `buttons` and `dynamic_images_vehicle_type` properties.
- Add normalization/validation methods for `buttons` and `dynamic_images_vehicle_type` parameters.
- Update `departmentSelfserveTasksRoute` to handle new fields in task creation and update.
- Add OpenAPI specifications for `buttons` and `dynamic_images_vehicle_type`.
- Include comprehensive tests for button normalization and vehicle type selection.