[Copilot-generated] Add support for the cause property in error pretty printing

[arcanis]

This is mostly a test to see how well Copilot works.

Adds support for handling the cause property of errors in the error formatting logic of the Cli class, enabling the display of nested error information.

• Error Formatting Enhancement: Modifies the error method to recursively handle the cause property of errors. This allows for the display of nested error information, providing more context on the error cause.
• Recursive Error Handling: Implements recursive error handling to ensure deeply nested errors are formatted and displayed correctly.

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For more details, open the Copilot Workspace session.