chore: fix contribute script

[Aarebecca]

Optimize contribute script

[gemini-code-assist]

Summary of Changes

Hello @Aarebecca, 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 refactors the contribute script to significantly improve the developer experience for contributors. By migrating to an interactive prompt library and implementing robust state management, the script now offers a guided, fault-tolerant, and more intuitive workflow for setting up local branches from external GitHub repositories, making the contribution process smoother and less prone to manual errors.

Highlights

• Interactive CLI Upgrade: The contribute script has been upgraded to use @clack/prompts, replacing the basic readline interface for a more interactive and user-friendly command-line experience.
• Robust Git Operations: Enhanced handling of Git remotes and branches, including checks for existing remotes, more precise branch checkout logic, and improved error reporting during Git commands.
• Session State Management: Introduced a mechanism to save and recover the state of an ongoing contribution session, allowing users to resume or clean up after an interrupted process.
• Flexible Input Parsing: The script now supports both full GitHub branch URLs and a simplified user:branch shorthand for specifying the source of contributions.
• Automated Cleanup Options: Provides interactive options for cleaning up the local environment after a contribution, such as removing temporary remotes and local branches.

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[gemini-code-assist]

Code Review

This pull request significantly improves the contribute.mjs script by replacing the basic readline interface with the more interactive and user-friendly @clack/prompts. The refactoring introduces robust features like command-line argument parsing, support for URL and shorthand branch formats, and a state management system to recover from incomplete sessions. The code is well-structured and the error handling is more granular. My review includes a couple of suggestions to further improve consistency in error reporting to enhance the user experience. Overall, this is an excellent enhancement to the developer workflow.