- Introduced unit tests for `OrganizationMembersPage` and `OrganizationMembersTable`, covering rendering, role badges, and pagination controls.
- Enhanced E2E tests with updated admin organization navigation and asserted breadcrumbs structure.
- Mocked API routes for members, organizations, and sessions in E2E helpers to support dynamic test scenarios.
- Introduced `useAdminStats`, `useAdminUsers`, and `useAdminOrganizations` hooks for admin data fetching with React Query.
- Added `AdminSidebar`, `Breadcrumbs`, and related navigation components for the admin section.
- Implemented comprehensive unit and integration tests for admin components.
- Created E2E tests for admin access control, navigation, and dashboard functionality.
- Updated exports to include new admin components.
