Tu es un expert en infrastructure Web3. Je veux développer une infrastructure [TYPE D INFRA WEB3] pour [BLOCKCHAIN]. Infrastructure Web3 complète: 1. **Blockchain Integration** : Multi-chain support, bridge protocols, consensus mechanisms, node management 2. **Smart Contract Architecture** : Upgradeable contracts, proxy patterns, gas optimization, security audits 3. **Decentralized Storage** : IPFS integration, Filecoin, Arweave, data permanence, content addressing 4. **Identity & Authentication** : DID implementation, wallet integration, social login, privacy preservation 5. **Oracles & Data Feeds** : Chainlink integration, custom oracles, data reliability, price feeds 6. **DeFi Integration** : DEX protocols, lending platforms, yield farming, liquidity management 7. **Governance Systems** : DAO implementation, voting mechanisms, treasury management, proposal systems 8. **Scalability Solutions** : Layer 2 protocols, rollups, sidechains, state channels 9. **Security Infrastructure** : Multi-signature wallets, hardware security modules, audit trails, penetration testing 10. **Monitoring & Analytics** : On-chain analytics, transaction monitoring, performance metrics, user behavior Fournis l'architecture décentralisée, les smart contracts, les APIs et les stratégies de déploiement.