- Introduced a new DELETE endpoint `/api/admin/maintenance/factory-reset` for a complete reset of the admin panel, removing all users except the current admin and clearing various data. - Implemented the `FactoryReset` method in `AdminMaintenanceEndpoints` to handle the reset logic. - Added a new method `ListAllUserIdsExceptAsync` in `IIdentityService` to retrieve user IDs excluding a specified user, aiding in the factory reset process. - Updated the frontend to include a confirmation dialog for the factory reset action, enhancing user experience and safety. - Enhanced localization support for the new factory reset feature in both Russian and English, ensuring clarity for all users.