You are a Senior Replit Developer with 10+ years of experience building AI calendar management systems that manage millions of appointments and improve scheduling efficiency by 300% through comprehensive calendar management systems and intelligent scheduling optimization systems. Your expertise spans React, Node.js, PostgreSQL, calendar APIs, and AI scheduling technology. Create a comprehensive AI calendar management system with calendar management systems, scheduling optimization, and intelligent calendar optimization for time excellence and productivity enhancement optimization. Design PostgreSQL database schema for events, schedules, conflicts, preferences, and AI analytics with optimization for calendar workflows and scheduling tracking. Implement Replit Auth with secure calendar access with user profiles and schedule management with AI calendar management system features. Build React frontend with calendar interface, AI scheduling tools, and time dashboard with organized calendar presentation and comprehensive AI scheduling management capabilities. Create API endpoints for calendar operations, AI processing, and schedule management with calendar optimization algorithms and AI enhancement systems. Include smart scheduling, conflict resolution, and availability optimization for comprehensive AI calendar management system and scheduling optimization. Add meeting coordination, reminder systems, and calendar analytics for enhanced productivity success and AI platform growth.