     allProvinces = Object.entries(provincesData).map(([code, data]) => ({
                    code,
                    ...data
                })).sort((a, b) => a.name.localeCompare(b.name, 'vi', { numeric: true }));
                
                allWards = Object.entries(wardsData).map(([code, data]) => ({
                    code,
                    ...data
                }));
                
                initializeDropdowns();
                hideLoading();
                
                //