Fix CustomerType and OwnerType enums: send int instead of string

- CustomerType: PERSONAL=0, FAMILY=1 (was 'Personal', 'Family')
- OwnerType: PERSON=0, REAL_ESTATE_AGENCY=1 (was 'peerson', 'RealEstateAgency')
- Backend Type column is int(11), sending strings caused 415 errors

app/enums/CustomerType.js

@@ -4,8 +4,8 @@
  * Used in: Customer registration (Customer/Add)
  */
 const CustomerType = Object.freeze({
-  PERSONAL: 'Personal',
-  FAMILY: 'Family',
+  PERSONAL: 0,
+  FAMILY: 1,
 });
 
 // Map value → Arabic label