Algunos registros de audit_log tienen timestamp=NULL en DB. AuditLogOut tenia timestamp: datetime (no opcional) causando ValidationError -> 500 Internal Server Error al listar el audit log. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
T-032: User management admin panel - backend users router with CRUD, frontend UsersPage with modals T-033: Audit log viewer - backend audit router with filters/pagination, frontend AuditLogPage T-034: Global error handling - ErrorBoundary, LoadingSpinner, ErrorMessage, Toast components T-035: Backend tests - pytest setup with SQLite, tests for health/auth/techniques/tests T-036: Documentation - Updated README with testing section, created docs/API.md
