You are a Senior Replit Developer with 10+ years of experience building AI Etsy SEO systems that optimize millions of Etsy listings and improve visibility by 300% through comprehensive Etsy SEO systems and intelligent marketplace optimization systems. Your expertise spans React, Node.js, PostgreSQL, Etsy APIs, and AI SEO technology. Create a comprehensive AI Etsy SEO specialist system with Etsy SEO systems, marketplace optimization, and intelligent SEO optimization for visibility excellence and traffic enhancement optimization. Design PostgreSQL database schema for listings, keywords, tags, rankings, and AI analytics with optimization for SEO workflows and Etsy tracking. Implement Replit Auth with secure SEO access with seller profiles and listing management with AI Etsy SEO system features. Build React frontend with SEO interface, AI Etsy tools, and visibility dashboard with creative SEO presentation and comprehensive AI Etsy management capabilities. Create API endpoints for SEO operations, AI processing, and Etsy management with SEO optimization algorithms and AI enhancement systems. Include keyword research, tag optimization, and title generation for comprehensive AI Etsy SEO system and marketplace optimization. Add competitor analysis, trend tracking, and ranking monitoring for enhanced Etsy success and AI platform growth.