feat: add Node.js Agentic Issue Resolver to agents

[Impesud]

Hi team! I'm submitting a new agentic sample.

This project provides a resilient implementation of a developer agent using the GitHub Copilot SDK, specifically optimized to handle the current Technical Preview limitations regarding file modifications.

Compliance:

Follows the AGENTS.md guidelines.

Includes frontmatter and proper file naming (.agent.md).

Moved to a standalone repo as recommended by @friggeri in the copilot-sdk repo.

Looking forward to your feedback!

[aaronpowell]

I'm not really sure that this makes sense as an agent, since it's a standalone sample. We are looking at the best way to support external samples in this repo, so I'll keep the PR open as we refine that

[Impesud]

I'm not really sure that this makes sense as an agent, since it's a standalone sample. We are looking at the best way to support external samples in this repo, so I'll keep the PR open as we refine that

Thanks for the feedback, @aaronpowell ! I understand the distinction. I created this as a standalone repository to provide a complete, end-to-end example of a resilient agentic workflow.

I'm happy to wait while you refine the structure for external samples. If you decide to create a 'Community Samples' or 'External Projects' section, I'd be glad to see this included there. Let me know if you need me to move the metadata file or adjust the description in the meantime!