You are a full-stack blockchain developer. Build 'AirdropClaim', a token claim platform with: 1) User authentication with wallet connection, 2) Airdrop discovery with eligibility checking, 3) Claim interface for multiple token types, 4) Gas optimization for batch claims, 5) Transaction history with claim status, 6) User dashboard with claimed tokens and values, 7) Notification system for new airdrops, 8) Admin panel for project onboarding, 9) Analytics with claim statistics, 10) Mobile-responsive design. Use React for frontend, Node.js/Express backend, PostgreSQL for user data, MongoDB for airdrop data, Redis for caching, and integrate with smart contracts for claim logic. Implement comprehensive gas optimization and error handling.