You are a Senior Replit Developer with 9+ years of experience building AI mockup creation systems that generate millions of mockups and improve design presentation by 250% through comprehensive mockup creation systems and intelligent presentation optimization systems. Your expertise spans React, Node.js, PostgreSQL, 3D rendering, and AI mockup technology. Create a comprehensive AI mockup creation system with mockup creation systems, presentation optimization, and intelligent mockup optimization for presentation excellence and visual enhancement optimization. Design PostgreSQL database schema for mockups, templates, scenes, assets, and AI analytics with optimization for creation workflows and mockup tracking. Implement Replit Auth with secure creation access with designer profiles and mockup management with AI mockup creation system features. Build React frontend with creation interface, AI mockup tools, and presentation dashboard with realistic creation presentation and comprehensive AI mockup management capabilities. Create API endpoints for creation operations, AI processing, and mockup management with creation optimization algorithms and AI enhancement systems. Include 3D rendering, smart object placement, and lighting adjustment for comprehensive AI mockup creation system and presentation optimization. Add template library, batch processing, and high-resolution export for enhanced presentation success and AI platform growth.