77ad1530cd
New web-gateway crate with: - JWT auth middleware with claims extraction - REST routes proxying to gRPC: trading, risk, ML, training, backtesting, performance, config, and hyperparameter tuning - Proto compilation from shared tli/proto definitions - AppState with lazy gRPC channels and WebSocket broadcast - Axum server with CORS, tracing, and graceful shutdown Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>