Verify GitHub Agentic Workflows initialization (#505)

Repository already initialized for GitHub Agentic Workflows.
Verification confirms all required components are present and correctly
configured.

## Verified Components

- **gh-aw CLI**: v0.37.30 installed and functional
- **Configuration files**: `.gitattributes`, `.vscode/settings.json`,
`.vscode/mcp.json`
- **Documentation**: `.github/aw/github-agentic-workflows.md` (69KB)
- **AI assistant**: `.github/agents/agentic-workflows.agent.md`
- **Setup workflow**: `.github/workflows/copilot-setup-steps.yml`

## Status

Repository ready for agentic workflow development. No modifications
required.

Users can:
- Create workflows: `gh aw new <name>`
- Compile workflows: `gh aw compile`
- Access AI agent via `/agent` → `agentic-workflows` in Copilot Chat

<!-- START COPILOT CODING AGENT TIPS -->
---

💡 You can make Copilot smarter by setting up custom instructions,
customizing its development environment and configuring Model Context
Protocol (MCP) servers. Learn more [Copilot coding agent
tips](https://gh.io/copilot-coding-agent-tips) in the docs.

Author: lpcox