- Introduced comprehensive test coverage for `OAuthButtons` and `LinkedAccountsSettings`, including loading states, button behaviors, error handling, and custom class support.
- Implemented `LinkedAccountsPage` tests for rendering and component integration.
- Adjusted E2E coverage exclusions in various components, focusing on UI-heavy and animation-based flows best suited for E2E tests.
- Refined Jest coverage thresholds to align with improved unit test additions.
- Consolidated `recharts` imports for `BarChart`, `AreaChart`, and `LineChart` components.
- Reformatted inline styles for tooltips and axis elements to enhance readability and maintain consistency.
- Applied minor cleanups for improved project code styling.
- Introduced `RegistrationActivityChart` to display user registration trends over 14 days.
- Enhanced `AdminStatsResponse` with `registration_activity`, providing improved insights for admin users.
- Updated demo data to include realistic registration activity and organization details.
- Refactored admin page to use updated statistics data model and improved query handling.
- Fixed inconsistent timezone handling in statistical analytics and demo user timestamps.
