Fix 4: useHashTab navigate() uses history.replaceState instead of
window.location.hash assignment — no spurious history entries, no
anchor-jump scroll side-effect.
Fix 5: Tabs ArrowLeft/ArrowRight keyboard nav (WAI-ARIA tabs pattern).
Fix 6: TabId union type in EngagementDetailPage, cast from string for
type-safe switch on activeTab without breaking Tabs.onChange signature.
Fix 7: intentional comment on UsersAdminPage reset-password aerated row.
Tests: 236/236 (+2 arrow-key assertions in Tabs.test.tsx).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Fix 1 (A): move row height constraint from min-height on tbody tr
(CSS no-op on table-row) to height: 32px on td (works on table-cell).
Fix 2 (A): table header text-[11px] -> text-[12px] to align with
documented caption scale.
Fix 3: add aria-controls + id to Tabs buttons; wrap active tab content
in role="tabpanel" + aria-labelledby in EngagementDetailPage.
Test: add aria-controls/id assertion to Tabs.test.tsx (234 total).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
