Feature Request: Customizable label for the 'Other / type something' option in AskUserQuestion

Summary

When Claude Code presents multiple-choice questions via the AskUserQuestion tool, the last option is always a free-text entry labeled something like \"Other\" or \"type something else\". This label is hardcoded and cannot be customized.

Requested Change

Allow the label for the free-text / custom input option to be configurable — either:

• Via a settings.json field (e.g. askUserQuestion.otherLabel)
• Or via a parameter on the AskUserQuestion tool itself (e.g. otherLabel: \"Enter custom response\")

Use Case

Users and teams may want this label to feel more contextual or action-oriented. For example:

• Instead of \"Other\" → \"Do this instead\"
• Instead of \"type something else\" → \"Enter your own answer\"
• Teams with specific UX conventions may want consistent terminology across their workflows

Current Behavior

The free-text option label is hardcoded in the CLI UI and cannot be changed by the user or via any config/markdown file.

Expected Behavior

The label for the free-text option should be customizable via user settings or a tool parameter.

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Submitted via Claude Code on behalf of a user.