Refactor: Auth & Identity System v1.4

- Fix: Resolved SQLAlchemy Mapper error for 'UserVehicle' using string-based relationships.
- Fix: Fixed Postgres Enum case sensitivity issue for 'userrole' (forcing lowercase 'user').
- Fix: Resolved ImportError for 'create_access_token' in security module.
- Feature: Implemented 2-step registration protocol (Lite Register -> KYC Step).
- Data: Added bank-level KYC fields (mother's name, ID/Driver/Boat/Pilot license expiry and categories).
- Business: Applied private fleet isolation (is_transferable=False for individual orgs).
- Docs: Updated Grand Master Book to v1.4 and added Developer Pitfalls guide.

backend/app/api/v1/endpoints/auth_old.py

@@ -0,0 +1,38 @@
+from fastapi import APIRouter, Depends, HTTPException, Request, status, Body
+from sqlalchemy.ext.asyncio import AsyncSession
+from app.db.session import get_db
+from app.schemas.auth import UserRegister, Token, UserLogin
+from app.services.auth_service import AuthService
+from app.core.security import create_access_token
+
+router = APIRouter()
+
+@router.post("/register", response_model=Token, status_code=status.HTTP_201_CREATED)
+async def register(
+    request: Request,
+    user_in: UserRegister = Body(...), 
+    db: AsyncSession = Depends(get_db)
+):
+    """Atomi Regisztráció KYC adatokkal és privát flotta létrehozásával."""
+    # 1. Elérhetőség
+    is_available = await AuthService.check_email_availability(db, user_in.email)
+    if not is_available:
+        raise HTTPException(status_code=400, detail="Az e-mail cím már foglalt.")
+
+    # 2. Végrehajtás
+    user = await AuthService.register_new_user(
+        db=db, 
+        user_in=user_in, 
+        ip_address=request.client.host
+    )
+    
+    # 3. Token generálás
+    token_data = {"sub": str(user.id), "email": user.email}
+    access_token = create_access_token(data=token_data)
+    
+    return {"access_token": access_token, "token_type": "bearer"}
+
+@router.post("/login", response_model=Token)
+async def login(user_in: UserLogin = Body(...), db: AsyncSession = Depends(get_db)):
+    # TODO: Implement login logic
+    raise HTTPException(status_code=501, detail="Login not yet implemented")