Master's refactor(automation) commit removed the AutomationLevel enum
and automation_level field from Plan. Update all behave steps, robot
helpers, and feature scenarios that referenced the removed type:
- cli_lifecycle_robot_alignment_steps.py: drop import and field assignment
- persistence_robot_alignment_steps.py: drop import and field assignment
- subplan_model_steps.py: drop import, parameter, and field assignment
- subplan_model.feature: replace automation level scenario with profile check
- helper_cli_lifecycle.py: drop import and field assignment
- helper_persistence_lifecycle.py: drop import, field assignment, and assertion