/add-error-boundary

Implement React error boundaries throughout the application. Create error boundary component with componentDidCatch lifecycle. Add fallback UI with friendly error message and retry button. Log errors to monitoring service (Sentry, Azure Monitor) with stack traces. Implement granular boundaries for different sections: page-level, component-level, layout-level. Preserve error context for debugging. Add development vs production error displays. Implement automatic error recovery attempts. Create error reporting UI for users to submit details. Add error boundary for async components with Suspense. Reference frontend-development-agent for React patterns. Test error handling with intentional errors in development.