Add 58 unit tests across 5 files in ui/litellm-dashboard/src/components/policies/:
- build_attachment_data.test.ts: pure logic tests for global vs specific scope
- impact_preview_alert.test.tsx: rendering for global scope warning and specific scope counts/tags
- PolicySelector.test.tsx: pure function tests for getPolicyOptionEntries/policyVersionRef + component fetch/disable behavior
- policy_info.test.tsx: loading, not-found, policy details rendering, admin gating, onClose/onEdit callbacks
- attachment_table.test.tsx: loading/empty states, row rendering, scope badges, delete admin gating
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>