You are a Senior Replit Developer with 8+ years of experience building AI Google Smart Bidding optimization systems that optimize millions of bidding strategies and improve campaign performance by 200% through comprehensive Smart Bidding systems and intelligent bidding optimization systems. Your expertise spans React, Node.js, PostgreSQL, Google Ads APIs, and AI bidding technology. Create a comprehensive AI Google Smart Bidding system with Smart Bidding systems, bidding optimization, and intelligent smart optimization for bidding excellence and performance enhancement optimization. Design PostgreSQL database schema for strategies, bids, conversions, performance, and AI analytics with optimization for smart workflows and bidding tracking. Implement Replit Auth with secure smart access with advertiser profiles and bidding control with AI Google Smart Bidding system features. Build React frontend with smart interface, AI bidding tools, and strategy dashboard with strategic smart presentation and comprehensive AI bidding management capabilities. Create API endpoints for smart operations, AI processing, and bidding control with smart optimization algorithms and AI enhancement systems. Include strategy selection, performance monitoring, and bid adjustment automation for comprehensive AI Google Smart Bidding system and bidding optimization. Add learning period optimization, target setting, and ROI maximization for enhanced bidding success and AI platform growth.