[Feature] Coinbase Advanced Trade API Integration

# The Opportunity BlackRock ($10T+ AUM), Fidelity ($4.5T+ AUM), and Goldman Sachs are tokenizing trillions in assets. BCG projects $16T in tokenized assets by 2030. EventTrader needs institutional-grade infrastructure to capture this massive market. # Why Coinbase Advanced Trade API? - Regulatory compliance: Only major US exchange with full regulatory clarity - Institutional custody: $130B+ in assets under custody - Tokenized securities ready: Infrastructure built for BlackRock's BUIDL fund and similar products - Advanced order types: Algo trading, portfolio rebalancing, institutional execution - Prime brokerage: Multi-venue execution, best price discovery - Coinbase received Conditional OCC Approval on 2.Apr.2026: https://www.coinbase.com/de/blog/coinbase-receives-conditional-occ-approval-building-the-future-of-finance - EventTrader already has developed auto-bridging to Base for unified liquidity: Coinbase Advanced Trade API would augment the already existing solid base. # Strategic Impact When institutions deploy AI trading strategies on tokenized Treasury bonds, corporate bonds, and equity funds, they'll need: ✅ Regulatory-compliant execution (Coinbase Advanced Trade) ✅ AI strategy deployment (EventTrader clone bots) ✅ Cross-asset trading (crypto + tokenized securities) # Revenue Potential - Institutional trading fees from high-volume tokenized asset trades - Bot deployment revenue from enterprise AI strategy licensing - Bridge the $250T traditional securities market with EventTrader's AI infrastructure # User Benefits - Access institutional markets previously unavailable to retail - Trade tomorrow's tokenized assets today - Deploy AI bots on the largest regulated crypto exchange This positions EventTrader as the premier AI trading terminal for the tokenized economy.