Fix error propagation in forms

src/components/admin/ManufacturerForm.tsx

@@ -98,6 +98,9 @@ export function ManufacturerForm({ onSubmit, onCancel, initialData }: Manufactur
               action: initialData?.id ? 'Update Manufacturer' : 'Create Manufacturer',
               metadata: { companyName: data.name }
             });
+            
+            // Re-throw so parent can handle modal closing
+            throw error;
           }
         })} className="space-y-6">
           {/* Basic Information */}