Feature Request: Add an AgentSkills skill for React Scan

### Summary

It would be great to have an official [AgentSkills](https://agentskills.io/) skill for React Scan, making it easier for AI agents to install, configure, and use React Scan programmatically.

### Motivation

AI coding agents (e.g. Claude, Cursor, Copilot) are increasingly used to scaffold, debug, and optimize React apps. However, without a structured skill definition, agents have to guess how to integrate React Scan — leading to incomplete or incorrect setups.

An AgentSkills skill would give agents a reliable, structured way to:
- Install React Scan in a project
- Configure it for the correct framework (Next.js App/Pages Router, Vite, Remix, etc.)
- Interpret and act on its output
- Use the imperative API (`scan()`, `setOptions()`, `onRender()`)