Replaced string-based entity identifiers in CRUD procedure and command classes with a strongly-typed EntityType enum. Updated all relevant handlers and records to use the new enum property, improving type safety and maintainability. Added necessary using directives and updated documentation comments to reflect these changes.
Renamed InsertProfileProcedure, UpdateProfileProcedure, and DeleteProfileProcedure (and their handlers) to use the "Command" suffix for consistency. Updated all usages in controllers, handlers, and tests. No logic changes; only type names were updated for improved clarity.
