admin notifications and data explorer backend

app/api/my.py

@@ -27,6 +27,7 @@ from app.schemas.service_center import (
     VehicleUpdate,
 )
 from app.schemas.user import UserRead
+from app.services.admin_notifications import create_admin_notification
 from app.services.odometer import (
     add_odometer_history,
     recalculate_current_odometer,
@@ -381,6 +382,20 @@ async def create_vehicle(
             changed_by=current_user.id,
         )
     await log_audit(session, actor=current_user, action="vehicle.create", target_type="vehicle", target_id=car.id)
+    vehicle_count = (
+        await session.execute(select(Car.id).where(Car.owner_id == current_user.id).limit(2))
+    ).scalars().all()
+    if len(vehicle_count) == 1:
+        await create_admin_notification(
+            session,
+            event_type="vehicle_created",
+            title="Пользователь впервые добавил авто",
+            body=f"{current_user.first_name or current_user.username or current_user.telegram_id}: {car.name}",
+            entity_type="vehicle",
+            entity_id=car.id,
+            idempotency_key=f"first_vehicle:{current_user.id}",
+            metadata={"user_id": current_user.id, "vehicle_id": car.id},
+        )
     await session.commit()
     await session.refresh(car)
     return car