add new entity: reference_range and enum gender

src/schema/public.ts

@@ -21,6 +21,7 @@ export * from "../entity/service_package"
 export * from "../entity/department"
 export * from "../entity/doctor_schedule"
 export * from "../entity/measurement_unit"
+export * from "../entity/reference_range"
 
 export * from "../types/action";
 export * from "../types/error";