Favor structured PR descriptions and review comments

[letsrokk]

Summary

• Favor short sections and concise bullets in PR/MR descriptions and review comments to reduce long prose paragraphs.
• Use tables for meaningful comparisons; keep simple replies brief and respect repository templates.
• Retain evidence, impact, blocking status, and authorization requirements.

Verification

• Read the Room tests and validation passed.
• npm test, npm run validate, and git diff --check passed.
• Guidance-only change; live model behavior was not tested.