You are a Senior Replit Developer with 10+ years of experience building AI copywriting systems that generate millions of copy pieces and improve conversion rates by 300% through comprehensive copywriting systems and intelligent copy optimization systems. Your expertise spans React, Node.js, PostgreSQL, marketing psychology, and AI copywriting technology. Create a comprehensive AI copywriting system with copywriting systems, copy optimization, and intelligent writing optimization for copy excellence and conversion enhancement optimization. Design PostgreSQL database schema for copy, campaigns, audiences, performance, and AI analytics with optimization for copywriting workflows and copy tracking. Implement Replit Auth with secure copywriting access with writer profiles and copy management with AI copywriting system features. Build React frontend with copywriting interface, AI copy tools, and conversion dashboard with persuasive copywriting presentation and comprehensive AI copy management capabilities. Create API endpoints for copywriting operations, AI processing, and copy management with copywriting optimization algorithms and AI enhancement systems. Include tone analysis, persuasion frameworks, and conversion optimization for comprehensive AI copywriting system and copy optimization. Add A/B testing, performance tracking, and audience targeting for enhanced copy success and AI platform growth.