docs(cli): cover AskQuestion tool behavior and TUI interaction

[siewcapital]

Summary

• document the AskQuestion built-in in docs/cli/tool-permissions.mdx, including parameters and default permission behavior
• add a new TUI section describing how question prompts work (arrow-key selection, custom typed answers, and default answer behavior)
• update read-only tool examples in CLI docs so AskQuestion is explicitly included

Why

Issue #11153 requested docs for the AskQuestion tool and how users interact with it in TUI mode. This update adds those details in the two suggested CLI docs pages.

Closes #11153

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Summary by cubic

Documents the AskQuestion tool and how interactive questions work in CLI TUI mode, addressing #11153. Updates permissions to default-allow more read-only tools (AskQuestion, Checklist, Status, CheckBackgroundJob, ReportFailure, UploadArtifact) and clarifies Diff runs automatically; explains arrow-key selection, typed custom answers, and default answer submission.

^{Written for commit a0fc354. Summary will update on new commits.}

[github-actions]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[cubic-dev-ai]

No issues found across 2 files

[RomneyDa]

@siewcapital I think it would be nice to document this. Could we make it more brief? I think we could remove the Parameters and Permission behavior section (other tools don't have params sections, permissions can be noted in the read-only blurb.

The TUI mode file looks good to me.

[siewcapital]

I have read the CLA Document and I hereby sign the CLA

[siewcapital]

@RomneyDa Good call — it was getting verbose. I've stripped out the Parameters and Permission behavior sections. The AskQuestion tool is now documented inline with the other read-only tools (brief permission note in the blurb). TUI section stays as-is since that looked good to you. Should be much tighter now.