feat(cli): add stability annotations to generated Markdown documentation #87

Description
Our CLI currently includes stability annotations (e.g., stable, experimental, deprecated) in Cobra command help templates, but these annotations are missing from the generated Markdown documentation.

This feature aims to:

• Ensure stability information is included in Markdown documentation, maintaining parity with Cobra help output.
• Allow customization of the command document generation process to improve flexibility and consistency.

Acceptance Criteria

• Stability annotations are added to generated Markdown documentation.
• Stability information in Markdown matches Cobra help output.
• The command document generation process supports customization for future enhancements.
• Documentation updates reflect these changes.

Implementation Notes

• Modify the Markdown generation process to include stability annotations.
• Ensure generated output remains clear and structured for readability.
• Maintain consistency across CLI help and Markdown documentation.

Additional Context
This enhancement improves documentation clarity and ensures users have accurate information across all command references.

Related Issues
#76

Priority: Low