Fix newline escape characters in GitHub messages

[bhouston]

Problem\n\nWhen using the GitHub mode, text sent to GitHub via the gh CLI tool often gets rendered with literal '\n\n' sequences in the GitHub issue text, rather than being properly formatted as newlines.\n\n## Expected Behavior\n\nText with newlines should be properly formatted when displayed in GitHub issues and PRs.\n\n## Possible Causes\n\nThis is likely due to how escape characters are handled in the config.ts file when forming the prompt or commands for the gh CLI tool. The solution may need to be platform-specific (Windows, Linux, macOS).\n\n## Acceptance Criteria\n\n- [ ] Identify the root cause of the escape character issue\n- [ ] Implement a fix that works across different platforms (Windows, Linux, macOS)\n- [ ] Add tests to verify the fix works as expected

[github-actions]

🎉 This issue has been resolved in version mycoder-agent-v1.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[github-actions]

🎉 This issue has been resolved in version mycoder-v1.0.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀