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.py

@@ -1,34 +1,32 @@
-from fastapi import APIRouter, Depends, HTTPException, Request, status
+# /opt/docker/dev/service_finder/backend/app/api/v1/endpoints/auth.py
+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, UserLogin, Token
+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", status_code=status.HTTP_201_CREATED)
+@router.post("/register", response_model=Token, status_code=status.HTTP_201_CREATED)
 async def register(
-    request: Request, 
-    user_in: UserRegister, 
+    request: Request,
+    user_in: UserRegister = Body(...), 
     db: AsyncSession = Depends(get_db)
 ):
-    # 1. Email check
-    is_available = await AuthService.check_email_availability(db, user_in.email)
-    if not is_available:
+    # 1. Foglalt email ellenőrzése
+    if not await AuthService.check_email_availability(db, user_in.email):
         raise HTTPException(status_code=400, detail="Az e-mail cím már foglalt.")
 
-    # 2. Process
-    try:
-        user = await AuthService.register_new_user(
-            db=db, 
-            user_in=user_in, 
-            ip_address=request.client.host
-        )
-        return {"status": "success", "message": "Regisztráció sikeres!"}
-    except Exception as e:
-        raise HTTPException(status_code=500, detail=f"Szerver hiba: {str(e)}")
-
-@router.post("/login")
-async def login(user_in: UserLogin, db: AsyncSession = Depends(get_db)):
-    # ... A korábbi login logika itt maradhat ...
-    pass
+    # 2. Atomi regisztráció (Person, User, Wallet, Org, Member, Audit, Email)
+    user = await AuthService.register_new_user(
+        db=db, 
+        user_in=user_in, 
+        ip_address=request.client.host
+    )
+    
+    # 3. Token kiállítása
+    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"}