Update app.py

app.py

@@ -275,7 +275,7 @@ class EnergyMLPredictor:
                 prediction = self.rf_model.predict(X_processed)[0]
                 
                 results.append({
-                    "data": date_obj.strftime('%d-%m-%Y'),
+                    "data": date_obj.strftime('%Y-%m-%d'),
                     "predicted_energy": float(prediction)
                 })