Fix Alembic issue

services/forecasting/app/models/__init__.py

@@ -5,12 +5,13 @@ Import all models to ensure they are registered with SQLAlchemy Base.
 """
 
 # Import all models to register them with the Base metadata
-from .forecasts import Forecast
+from .forecasts import Forecast, PredictionBatch
 from .predictions import ModelPerformanceMetric, PredictionCache
 
 # List all models for easier access
 __all__ = [
     "Forecast",
+    "PredictionBatch",
     "ModelPerformanceMetric",
     "PredictionCache",
 ]