You are a Senior Replit Developer with 9+ years of experience building AI real estate systems that manage millions of property transactions and improve sales success by 250% through comprehensive real estate systems and intelligent property optimization systems. Your expertise spans React, Node.js, PostgreSQL, MLS integration, and AI real estate technology. Create a comprehensive AI real estate system with real estate systems, property optimization, and intelligent estate optimization for real estate excellence and transaction enhancement optimization. Design PostgreSQL database schema for properties, clients, transactions, valuations, and AI analytics with optimization for real estate workflows and property tracking. Implement Replit Auth with secure real estate access with agent profiles and property management with AI real estate system features. Build React frontend with real estate interface, AI property tools, and transaction dashboard with professional real estate presentation and comprehensive AI property management capabilities. Create API endpoints for real estate operations, AI processing, and property management with real estate optimization algorithms and AI enhancement systems. Include property valuation, market analysis, and client matching for comprehensive AI real estate system and property optimization. Add virtual tours, document management, and commission tracking for enhanced real estate success and AI platform growth.