Enhancements to AI Scriptless

[3dgiordano]

This pull request introduces significant enhancements to the AI Scriptless formatter and its related models and tests. The main focus is on improving the representation, validation, and editing of script step arguments and parameters, providing more detailed metadata, and supporting richer contract-based command definitions. Several utility functions and data models have been added or refactored to support these improvements.

Formatter and Model Enhancements:

• Added new models: ScriptStepArgument, ScriptStepParameter, and ScriptStepDetail in models/ai_scriptless.py to represent detailed step argument and parameter metadata, including validation rules, allowed values, data sources, and display labels.
• Implemented format_step_detail and supporting utility functions in formatters/ai_scriptless.py to provide a comprehensive view of a script step, including its arguments, unset parameters, and editing notes.
• Improved argument value formatting and display logic, including better handling of multivalued parameters and secured values.
• Enhanced display names for loops and conditions to better reflect variable-driven and labeled constructs.

Command Contracts and Validation:

• Updated the offline test fixtures to use a more comprehensive command contract model, supporting richer parameter and command metadata for validation and editing. The fixture was renamed from declare_command_parameters to declare_commands and now handles full command contracts, not just parameter lists.

Documentation and Policy Clarifications:

• Updated command selection policy and argument binding documentation to clarify the use of DataTable bindings and validation against declared types, ranges, and allowed values. [1] [2]

Test and Utility Adjustments:

• Adjusted test utility functions and test cases to align with new argument and contract models, including changes to how IfStatement and group elements are constructed for tests. [1] [2]
• Added format_step_detail to the test imports to enable direct testing of the new detailed formatting.

These changes improve the reliability, clarity, and editability of scriptless test steps, making it easier to inspect, validate, and modify script steps programmatically or through the UI.