Add enums, AuthService, and integrate backend registration endpoints

- Add separate enum files: BuildingType, PropertyStatus, BookingStatus, CommissionType, IdentityType, UserRole, City, LoginMethod, OwnerType, CustomerType
- Add AuthService (addToken/getToken/deleteToken)
- Update api.js: use AuthService, add Owner/Add and Customer/Add endpoints
- Update login page to use AuthService for token storage
- Rewrite owner register: 3-step flow with OwnerType dropdown, backend integration, OTP verification
- Rewrite tenant register: 2-step flow with CustomerType dropdown, backend integration, OTP verification
- Update homepage and property detail to use enums instead of hardcoded maps
- Update AddPropertyForm to import from enums directly
- Add console logs and status toasts linked to API response messages

app/page.js

@@ -29,6 +29,7 @@ import PropertyMap from './components/home/PropertyMap';
 import Link from 'next/link';
 import Image from 'next/image';
 import { getRentProperties, getSaleProperties } from './utils/api';
+import { BuildingTypeKeys, PropertyStatusKeys, extractCity } from './enums';
 
 // Map API property data to the format the UI expects
 // API returns { propertyInformationId, deposit, monthlyRent, dailyRent, rating, propertyInformation: {...}, ... }
@@ -38,13 +39,8 @@ function mapApiProperty(item, index) {
   const dailyPrice = item.dailyRent ?? item.monthlyRent ?? item.price ?? 0;
   const monthlyPrice = item.monthlyRent ?? 0;
 
-  // BuildingType: 0=Apartment, 1=Villa, 2=House
-  const buildingTypeMap = { 0: 'apartment', 1: 'villa', 2: 'house' };
-  const propType = buildingTypeMap[info.buildingType] ?? buildingTypeMap[item.type] ?? 'apartment';
-
-  // Status: 0=Available, 1=Booked, 2=Maintenance
-  const statusMap = { 0: 'available', 1: 'booked', 2: 'maintenance' };
-  const status = statusMap[info.status] ?? statusMap[item.status] ?? 'available';
+  const propType = BuildingTypeKeys[info.buildingType] ?? BuildingTypeKeys[item.type] ?? 'apartment';
+  const status = PropertyStatusKeys[info.status] ?? PropertyStatusKeys[item.status] ?? 'available';
 
   const features = [];
   if (item.isSmokeAllow) features.push('يسمح بالتدخين');
@@ -86,14 +82,7 @@ function mapApiProperty(item, index) {
   };
 }
 
-function extractCity(address) {
-  if (!address) return '';
-  const cities = ['دمشق', 'حلب', 'حمص', 'اللاذقية', 'درعا', 'طرطوس', 'السويداء', 'دير الزور', 'الرقة', 'إدلب', 'الحسكة', 'القامشلي', 'ريف دمشق'];
-  for (const city of cities) {
-    if (address.includes(city)) return city;
-  }
-  return '';
-}
+// extractCity is now imported from @/app/enums
 
 // Fallback dummy data
 const FALLBACK_PROPERTIES = [