Add Claude Code commands for agent orchestration

[MatthewMckee4]

Summary

• Add custom Claude Code commands for a manager/sub-agent workflow: /work-on-issue, /review, /refactor, /audit, /next-issues
• Each command has scoped tool permissions (e.g., review and audit are read-only)
• Enables parallel development sessions across multiple terminals

Test plan

• Verify each command loads correctly in Claude Code
• Run /next-issues to confirm issue fetching works
• Run /audit to confirm codebase scanning works

Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
see 1 file with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.