This commit marks the `IUserReceiverRepository` and `IUserReceiverService` as obsolete and removes their implementations. The `UserReceiverDto`, `UserReceiver`, `UserReceiverService`, and `UserReceiverRepository` classes have been deleted, along with their mappings in the `MappingProfile`. Additionally, the `TestUserReceiverController` has been removed, reflecting the complete removal of user receiver functionality from the codebase.
