Add 6 major oracle enhancements:
- Chainlink-style decentralized oracle with stake-weighted aggregation
- Circuit breakers for flash crash protection with cascade triggers
- Cross-chain price feeds via IBC from Ethereum, Cosmos, etc.
- ML-based anomaly detection using Isolation Forest algorithm
- DeFi liquidation oracles with health factor monitoring
- Black-Scholes options pricing with Greeks and perpetual swaps
