jgrusewski
63eff69bb6
feat(api_gateway): add all stream adapters + monitoring streams
Gateway poll-to-stream adapters:
- broker_gateway: StreamAccountState (3s), StreamSessionStatus (5s)
- data_acquisition: StreamDownloadStatus (5s)
- risk: StreamCircuitBreakerStatus (2s), StreamRiskMetrics (3s)
- ml: StreamModelStatus (5s)
- trading: StreamPortfolioSummary (3s), StreamOrderBook (1s)
- trading_agent: StreamAgentStatus (3s)
Monitoring handler real implementations:
- stream_system_status: fan-out health checks
- stream_metrics: Prometheus query loop
- stream_alerts: empty placeholder (no alertmanager yet)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>