fix: wrap OAuth login URL to prevent truncation in narrow terminals

[georgehulme]

Summary

The authorization URL displayed during OAuth login was truncating on narrow terminals that don't break long tokens.

Details

This fix uses the existing wrap-ansi dependency to properly wrap the URL to the current terminal width, ensuring the full authorization link is displayed.

Both the NO_BROWSER user-code flow and the web login flow now display wrapped URLs that fit within the terminal width while maintaining readability.

Related Issues

Issue: #12137

How to Validate

Pre-Merge Checklist

• Validated on required platforms/methods:
  • MacOS
    • npm run
    • npx
    • Docker
    • Podman
    • Seatbelt
  • Windows
    • npm run
    • npx
    • Docker
  • Linux
    • npm run
    • npx
    • Docker

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[gemini-code-assist]

Summary of Changes

Hello @georgehulme, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a display bug where lengthy OAuth authorization URLs were not properly formatted in terminal output, leading to truncation. By integrating text wrapping functionality using an existing library, the change ensures that these critical URLs are always fully visible and readable, adapting to various terminal widths and enhancing the user's authentication experience.

Highlights

• OAuth URL Truncation Fix: The pull request resolves an issue where OAuth authorization URLs were truncated in narrow terminals, making them difficult to read or copy.
• Text Wrapping Implementation: The existing wrap-ansi dependency is now utilized to properly wrap long URLs to the current terminal width, ensuring full visibility.
• Affected Flows: Both the NO_BROWSER user-code flow and the standard web login flow now display wrapped URLs, improving user experience across different authentication methods.

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[gemini-code-assist]

Code Review

This pull request fixes an issue where long OAuth login URLs could be truncated in narrow terminals. The solution uses the wrap-ansi package to wrap the URL to the terminal width, which has been correctly applied to both the web login and user-code authentication flows. My review includes one suggestion to improve code consistency and maintainability by refactoring the duplicated logic for determining terminal width.