Update app.py

app.py

@@ -837,7 +837,13 @@ def round_floats(obj: Union[float, Dict, List], ndigits: int = 3) -> Union[float
     elif isinstance(obj, (list, tuple)):
         return [round_floats(x, ndigits) for x in obj]
     return obj
-
+if __name__ == "__main__":
+    try:
+        calculator = NutrientCalculator(volume_liters=VOLUME_LITERS)
+        calculator.calculate()
+        calculator.print_report()
+    except Exception as e:
+        print(f"Критическая ошибка: {str(e)}")
 @app.route('/calculation', methods=['POST'])
 def handle_calculation():
     try: