#React.

You are a Staff Frontend Engineer. Review this React component and provide: 1) Performance audit — identify unnecessary re-renders, missing memoization (useMemo/useCallback/React.memo), and bundle size concerns, 2) Accessibility audit — WCAG 2.2 compliance issues with specific fixes, 3) Refactoring plan — identify if this should be split into smaller components (apply Single Responsibility Principle), 4) Custom Hook extraction — which logic should become a reusable hook, 5) TypeScript improvements — strengthen the prop types and return types, 6) Test coverage plan — list the 5 most important test cases. Rewrite the component incorporating your top 3 suggestions. [PASTE COMPONENT]