feat: Add toast notifications to all wizards

- Imported showToast utility from react-hot-toast wrapper
- Added success toast after successful API calls in all 7 wizards
- Added error toast on API failures for better user feedback
- Replaced silent errors with user-visible toast notifications

Wizards updated:
- CustomerWizard: Toast on customer creation
- EquipmentWizard: Toast on equipment creation
- QualityTemplateWizard: Toast on template creation
- SupplierWizard: Toast on supplier + price list creation
- RecipeWizard: Toast on recipe creation
- SalesEntryWizard: Toast on sales record creation
- CustomerOrderWizard: Toast on customer + order creation

This completes the toast notification implementation (High Priority item).
Users now get immediate visual feedback on success/failure instead of
relying on console.log or error state alone.

frontend/src/components/domain/unified-wizard/wizards/RecipeWizard.tsx

@@ -6,6 +6,7 @@ import { recipesService } from '../../../../api/services/recipes';
 import { inventoryService } from '../../../../api/services/inventory';
 import { IngredientResponse } from '../../../../api/types/inventory';
 import { RecipeCreate, RecipeIngredientCreate, MeasurementUnit } from '../../../../api/types/recipes';
+import { showToast } from '../../../../utils/toast';
 
 interface WizardDataProps extends WizardStepProps {
   data: Record<string, any>;
@@ -259,11 +260,14 @@ const IngredientsStep: React.FC<WizardDataProps> = ({ data, onDataChange, onComp
       };
 
       await recipesService.createRecipe(currentTenant.id, recipeData);
+      showToast.success('Receta creada exitosamente');
       onDataChange({ ...data, ingredients: selectedIngredients });
       onComplete();
     } catch (err: any) {
       console.error('Error creating recipe:', err);
-      setError(err.response?.data?.detail || 'Error al crear la receta');
+      const errorMessage = err.response?.data?.detail || 'Error al crear la receta';
+      setError(errorMessage);
+      showToast.error(errorMessage);
     } finally {
       setSaving(false);
     }