REFACTOR external service and improve websocket training

services/external/app/models/__init__.py

@@ -16,6 +16,9 @@ from .weather import (
     WeatherForecast,
 )
 
+from .city_weather import CityWeatherData
+from .city_traffic import CityTrafficData
+
 # List all models for easier access
 __all__ = [
     # Traffic models
@@ -25,4 +28,7 @@ __all__ = [
     # Weather models
     "WeatherData",
     "WeatherForecast",
+    # City-based models (new)
+    "CityWeatherData",
+    "CityTrafficData",
 ]