Add Repowarden to AI tools list

[joshghent]

🚀 Summary

Adding Repowarden to the AI productivity dev tools list.

✅ Checklist

• I have read the contribution guidelines
• The tool is AI-related and useful for developers
• I have added a short, clear description of the tool
• The link is not a duplicate of an existing one
• The title of the link is properly capitalized
• The link follows the Awesome List format (- [Tool Name](link) – description)
• My change does not include unrelated files or changes

📌 Why is this tool awesome?

Most AI tools focus on feature development. This is firmly stuff that humans should be kept in the loop for.
But maintenance, dependency upgrades, engine upgrades, CVE monitoring, license checks - these are all clearly defined problem spaces and are a huge burden on developers - even using claude or codex.
This tool takes care of all of that toil and hassle.

🔗 Link

https://repowarden.dev

📝 Additional context

Nope! Thanks for the great project :)