Add --ask flag to help command for interactive query support

[dreamer-coding]

Summary

Add an --ask flag to the help command to allow users to ask natural-language questions about commands.

Motivation

Traditional help systems require users to know command names and flags in advance. An interactive query mode improves discoverability and usability, especially for new users.

Proposed Solution

Introduce an --ask flag that allows users to input a question and receive relevant command suggestions, usage details, and examples.

Alternatives Considered

Static help text and manual documentation lookup, which are slower and less intuitive.

Additional Context

This feature bridges CLI usability with modern AI-assisted workflows