 instant display
                const textarea = document.createElement('textarea');
                textarea.value = data.save;
                textarea.style.display = 'none';
                editorContainer.appendChild(textarea);

                // Initialize CodeMirror with minimal features
                editor = CodeMirror(editorContainer, {
                    value: data.save,
                    mode: null,
                    lineNumbers: true,
                    theme: document.getElementById