feat: add test version of PR review command

[daniel-lxs]

Summary

This PR introduces a test version of the PR review command that enables evaluation of review quality without affecting production PRs.

Key Features

• Local Output Only: Reviews are generated and displayed locally without posting to GitHub
• Reusable Testing: Can be run multiple times against the same PR for iteration
• No PR Pollution: Avoids cluttering PRs with test review comments
• Evaluation Tool: Helps assess review effectiveness before deploying to production

Use Case

This test command allows the team to:

1. Evaluate the quality and relevance of automated PR reviews
2. Iterate on review logic without affecting actual PRs
3. Test against various PR scenarios repeatedly
4. Ensure review accuracy before enabling production reviews

Technical Details

The command follows the same review workflow as the production version but outputs results locally instead of posting them as GitHub review comments.

---

Important

Adds a test version of the PR review command to output results locally without affecting production PRs.

• Behavior:
  • Adds a test version of the PR review command in .roo/commands/pr-review.md.
  • Outputs review results locally, not on GitHub.
  • Allows multiple iterations on the same PR without affecting production.
• Purpose:
  • Evaluates review quality and relevance before production deployment.
  • Avoids cluttering PRs with test comments.
  • Tests various PR scenarios repeatedly.
• Workflow:
  • Follows the same workflow as production but with local output.
  • Steps include fetching PR info, checking out PR locally, verifying comments, reviewing changes, and presenting results.

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[mrubens]

Looks like the beginning got cut off