- Introduced `selfserve_task_attachment_payloads` class for managing task attachments, including formatting and download URL generation.
- Added unit and API tests to validate attachment handling in self-serve tasks and customer-scoped workflows.
- Enhanced wash start simulation and studio graph projections to integrate task attachment data.
- 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.