Trading_Risk_Governance_Module

Acts as an autonomous risk auditor and gatekeeper for trading agents. Performs NAV validation, daily drawdown audit, risk-based position sizing, max position-size enforcement, and stop-loss/trailing-stop verification before authorizing any trade, triggers a kill-switch on daily drawdown breach, and logs all risk and ROI decisions to the devops-roi-ledger with ROI_Impact_Instrumentalist integration.