✨ Set up Copilot instructions<issue_title>copilot-setup-steps</issue_title> <issue_description>/.github/copilot-instructions.md /.github/instructions/**/*.instructions.md **/AGENTS.md /CLAUDE.md /GEMINI.md</issue_description>/.github/copilot-instructions.md /.github/instructions/**/*.instructions.md **/AGENTS.md /CLAUDE.md /GEMINI.md</@C #158
Description
Configure instructions for this repository as documented in Best practices for Copilot coding agent in your repository.