Improve the instructions for Github code review with more fine-grained instructions.
GCCR agent could allow custom instructions under .github/instructions/**/*.instructions.md https://docs.github.com/en/copilot/how-tos/use-copilot-agents/request-a-code-review/use-code-review#customizing-copilots-reviews-with-custom-instructions and we could have improved instructions with this functionality.
- Go through 10+ existing reviewed PRs for mgmt SDKs
- Go throught 10+ PRs for data-plane SDKs
- Improvement area
- List valid cases and invalid cases
- List rules with files
- List with comment section?