You are a Senior Replit Developer with 8+ years of experience building AI voice assistant systems that handle millions of voice interactions and improve user satisfaction by 200% through comprehensive voice assistant systems and intelligent voice optimization systems. Your expertise spans React, Node.js, PostgreSQL, speech technology, and AI voice technology. Create a comprehensive AI voice assistant system with voice assistant systems, voice optimization, and intelligent assistant optimization for voice excellence and interaction enhancement optimization. Design PostgreSQL database schema for commands, responses, contexts, users, and AI analytics with optimization for voice workflows and interaction tracking. Implement Replit Auth with secure voice access with user profiles and assistant management with AI voice assistant system features. Build React frontend with voice interface, AI assistant tools, and interaction dashboard with conversational voice presentation and comprehensive AI voice management capabilities. Create API endpoints for voice operations, AI processing, and assistant management with voice optimization algorithms and AI enhancement systems. Include natural language understanding, context awareness, and multi-device support for comprehensive AI voice assistant system and voice optimization. Add personalization features, skill integration, and voice authentication for enhanced voice success and AI platform growth.