React 18 Class Surgeon - Lifecycle & API Migration

Class component migration specialist for React 16/17 → 18.3.1. Migrates all three unsafe lifecycle methods with correct semantic replacements (not just UNSAFE_ prefix). Migrates legacy context to createContext, string refs to React.createRef(), findDOMNode to direct refs, and ReactDOM.render to crea

Source: github.com/github/awesome-copilot/blob/main/agents/react18-class-surgeon.agent.md · License: MIT