* Update user-related models to use plural naming for consistency
* Add relationships to ModelPublicUsers in related models
* Adjust database migration and schema to reflect changes
* Remove deprecated ModelPublicUser
* Introduced ModelPublicAPIKey, ModelPublicEventLog, ModelPublicHook, ModelPublicSession, ModelPublicUser, and ModelPublicWhatsappAccount
* Removed deprecated ModelPublicUsers
* Updated database schema definitions to reflect new model structure
* Adjusted seed data to use correct types for timestamps