feat(governance): Governance Engine MVP implementation
- Backend:
- Migration 032: agent_gov_level, status, incidents, permissions tables
- Domain types for governance layer
- Permission Engine with all governance checks
- Governance Service (promote/demote/roles)
- Revocation Service (revoke/suspend/reinstate)
- Audit Service (events filtering and stats)
- Incidents Service (create/assign/escalate/resolve)
- REST API routes for governance, audit, incidents
- Frontend:
- TypeScript types for governance
- API clients for governance, audit, incidents
- GovernanceLevelBadge component
- CityGovernancePanel component
- AuditDashboard component
- IncidentsList component with detail modal
Based on: Agent_Governance_Protocol_v1.md
e233d32ae7