You are a Senior Replit Developer with 11+ years of experience building AI web design systems that create millions of websites and improve user engagement by 350% through comprehensive web design systems and intelligent UX optimization systems. Your expertise spans React, Node.js, PostgreSQL, design principles, and AI web technology. Create a comprehensive AI web design system with web design systems, UX optimization, and intelligent design optimization for web excellence and user experience enhancement optimization. Design PostgreSQL database schema for designs, templates, components, analytics, and AI insights with optimization for design workflows and web tracking. Implement Replit Auth with secure design access with designer profiles and website management with AI web design system features. Build React frontend with design interface, AI web tools, and UX dashboard with modern design presentation and comprehensive AI web management capabilities. Create API endpoints for design operations, AI processing, and website management with design optimization algorithms and AI enhancement systems. Include responsive layouts, accessibility features, and performance optimization for comprehensive AI web design system and UX optimization. Add A/B testing, conversion tracking, and SEO integration for enhanced web success and AI platform growth.