Extract types, constants, helpers, and UI pieces (LoadingSkeleton,
EmptyState, StatCard, ComplianceRing, Modal, TenantCard,
CreateTenantModal, EditTenantModal, TenantDetailModal) into
_components/ and _types.ts to bring page.tsx from 1663 LOC to
432 LOC (under the 500 hard cap). Behavior preserved.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
