feat: stabilize KYC, international assets and multi-currency schema

- Split mother's name in KYC (last/first)
- Added mileage_unit and fuel_type to Assets
- Expanded AssetCost for international VAT and original currency
- Fixed SQLAlchemy IndexError in asset catalog lookup
- Added exchange_rate and ratings tables to models

backend/app/models/__init__.py

@@ -1,19 +1,15 @@
-from app.db.base import Base
+from app.db.base_class import Base
 from .identity import User, Person, Wallet, UserRole, VerificationToken
-from .organization import Organization, OrgType
-from .vehicle import (
-    VehicleCatalog, 
-    Asset, 
-    AssetEvent, 
-    AssetRating, 
-    ServiceProvider,
-    Vehicle,       # Alias az Asset-re a kompatibilitás miatt
-    ServiceRecord  # Alias az AssetEvent-re a kompatibilitás miatt
-)
+from .organization import Organization, OrganizationMember
+from .asset import Asset, AssetCatalog, AssetCost, AssetEvent
+from .address import Address, GeoPostalCode, GeoStreet, GeoStreetType
+from .gamification import UserStats, PointsLedger
 
-# Aliasok a kód többi részének szinkronizálásához
-UserVehicle = Vehicle
-VehicleOwnership = Asset
+# Aliasok a kompatibilitás és a tiszta kód érdekében
+Vehicle = Asset
+UserVehicle = Asset
+VehicleCatalog = AssetCatalog
+ServiceRecord = AssetEvent
 
 __all__ = [
     "Base", 
@@ -23,14 +19,19 @@ __all__ = [
     "UserRole", 
     "VerificationToken",
     "Organization", 
-    "OrgType",
-    "VehicleCatalog", 
+    "OrganizationMember",
     "Asset", 
-    "AssetEvent", 
-    "AssetRating", 
-    "ServiceProvider",
+    "AssetCatalog", 
+    "AssetCost", 
+    "AssetEvent",
+    "Address", 
+    "GeoPostalCode", 
+    "GeoStreet", 
+    "GeoStreetType",
+    "UserStats", 
+    "PointsLedger",
     "Vehicle", 
     "UserVehicle", 
-    "ServiceRecord",
-    "VehicleOwnership"
+    "VehicleCatalog", 
+    "ServiceRecord"
 ]