Maintenance

Adds agent guidance files and a unified /implement skill for coding agents working in this repository.

Files added:

• AGENTS.md — Repository architecture overview, module structure, code navigation, build/test commands, common crash patterns
• CLAUDE.md — Symlink to AGENTS.md
• .agents/skills/implement/SKILL.md — End-to-end implementation workflow (plan -> implement -> verify -> commit -> draft PR)
• .claude/skills — Symlink to .agents/skills

Test

• Check out the add-agents-md-skill branch
• Open it in an agentic IDE or CLI
• Ask the agent to implement a small feature. For example:

Implement a feature: the redacted action changes the background color to red and crosses out the selected text. Add a corresponding button to the toolbar. Create a new branch off this one for this feature.

• Verify the agent:
  • Presents an implementation plan for approval
  • Implements, verifies, and waits for your approval
  • Commits and creates a draft PR
• Delete the draft PR