feat(customers): add DTOs for individual and legal customer creation

- Created CreateCustomerIndividualDto for individual customer data with fields: first_name, last_name, national_code, postal_code, is_favorite, and economic_code.
- Created CreateCustomerLegalDto for legal customer data with fields: company_name, economic_code, registration_number, and postal_code.

src/generated/prisma/client.ts

@@ -42,6 +42,16 @@ export { Prisma }
  * 
  */
 export type Customer = Prisma.CustomerModel
+/**
+ * Model CustomerIndividual
+ * 
+ */
+export type CustomerIndividual = Prisma.CustomerIndividualModel
+/**
+ * Model CustomerLegal
+ * 
+ */
+export type CustomerLegal = Prisma.CustomerLegalModel
 /**
  * Model Device
  *