chore: audit Copilot auto-review against DevKit standard

[HerbHall]

Context

Runbooks was the reference implementation for Copilot auto-review. DevKit has now standardized the pattern (devkit#194). Audit this repo to ensure full compliance.

Steps

1. Run the audit:

   bash /path/to/devkit/scripts/copilot-review-setup.sh audit HerbHall/Runbooks

2. Fix any failing checks. The ruleset name may need updating from "Copilot Code Review" to "Copilot PR Review" for consistency (optional).

3. Verify CODEOWNERS file exists.

Reference

• DevKit PR: HerbHall/devkit#207
• Docs: devkit/docs/copilot-integration.md