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/schemas/auth.py

@@ -28,7 +28,15 @@ class UserKYCComplete(BaseModel):
     phone_number: str
     birth_place: str
     birth_date: date
-    mothers_name: str
+    mothers_last_name: str
+    mothers_first_name: str
+    # Hibrid Címmezők
+    address_zip: str
+    address_city: str
+    address_street_name: str
+    address_street_type: str
+    address_house_number: str
+    address_hrsz: Optional[str] = None # Helyrajzi szám
     identity_docs: Dict[str, DocumentDetail]
     ice_contact: ICEContact
 
@@ -36,7 +44,6 @@ class UserKYCComplete(BaseModel):
 class PasswordResetRequest(BaseModel):
     email: EmailStr
 
-# EZ HIÁNYZOTT KORÁBBAN:
 class PasswordResetConfirm(BaseModel):
     email: EmailStr
     token: str