Organization modern slavery service

Assess modern-slavery risk across suppliers under /organization/local/suppliers. Resolves missing identity.json from resource.json via the Ploutonion organization-identity agent, reads firmographics from identity, discovers modern slavery statements and adverse media via the Ploutonion organization-compliance agent, scores governance and operational mitigation via LLM, combines with deterministic geographic/industry inherent risk, writes modern-slavery-risk-assessment.json, skips fresh assessments (≤7 days), and delivers a portfolio PDF risk report.