// Extracted from newOS4 index.html — SimpleGUIModule
        class SimpleGUIModule {
            constructor() { this.commands = {}; this.terminal = null; this.guiElements = {}; }
            getHelpInfo() {
                return {
                    'gui': 'gui — Show the GUI builder overview',
                    'gui-button': 'gui-button <label> <command> — Add a clickable button',
                    'gui-input': 'gui-input <placeholder> <varName> — Add a text input field',
                    'gui-text': 'gui-text <content> — Add a text element',
                    'gui-clear': 'gui-clear — Clear all GUI elements',
                    'gui-run': 'gui-run <command> — Run a terminal command from the GUI'
                };
            }
            registerCommands() {
                this.commands['gui'] = () => this.showGUI();
                this.commands['gui-button'] = (args) => this.createButton(args);
                this.commands['gui-input'] = (args) => this.createInput(args);
                this.commands['gui-text'] = (args) => this.createText(args);
                this.commands['gui-clear'] = () => this.clearGUI();
                this.commands['gui-run'] = (args) => this.runCommand(args);
            }
            showGUI() {
                this.terminal.print("=== Simple GUI Builder ===", "info");
                this.terminal.print("Commands: gui-button, gui-input, gui-text, gui-clear", "info");
            }
            createButton(args) {
                if (args.length < 2) {
                    this.terminal.print("Usage: gui-button <label> <command>", "warning"); return;
                }
                const label = args[0], command = args.slice(1).join(' ');
                const id = 'gui-btn-' + Date.now();
                // v4.5.68: Use addEventListener instead of onclick attribute to prevent quote-breaking XSS
                this.terminal.printHTML(`<div style="margin: 5px 0;">
                    <button class="qa-btn" id="${id}">${this._escapeHtml(label)}</button>
                </div>`);
                const btn = document.getElementById(id);
                if (btn) {
                    btn.addEventListener('click', () => {
                        (window.webx11 || window).executeCommand(command);
                    });
                }
                this.guiElements[id] = { type: 'button', label, command };
                this.terminal.print(`Button '${label}' created`, "success");
            }
            _escapeHtml(str) {
                return String(str).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;').replace(/'/g, '&#039;');
            }
            createInput(args) {
                if (args.length < 2) {
                    this.terminal.print("Usage: gui-input <placeholder> <varName>", "warning"); return;
                }
                const placeholder = args[0], varName = args[1], id = 'gui-input-' + Date.now();
                this.terminal.printHTML(`<div style="margin: 5px 0;">
                    <input type="text" id="${id}" placeholder="${placeholder}" 
                           style="background: #0a0a0a; border: 1px solid #005500; 
                                  color: #00ff00; padding: 8px; width: 100%;" />
                </div>`);
                this.guiElements[id] = { type: 'input', placeholder, varName };
                this.terminal.print(`Input '${placeholder}' created (var: ${varName})`, "success");
            }
            createText(args) {
                if (!args[0]) {
                    this.terminal.print("Usage: gui-text <content>", "warning"); return;
                }
                const content = args.join(' ');
                this.terminal.printHTML(`<div style="margin: 5px 0; padding: 8px; 
                    background: #111111; border-left: 3px solid #00aaff;">${content}</div>`);
                this.terminal.print("Text element created", "success");
            }
            clearGUI() { this.guiElements = {}; this.terminal.print("GUI elements cleared", "success"); }
            runCommand(args) {
                if (!args[0]) {
                    this.terminal.print("Usage: gui-run <command>", "warning"); return;
                }
                this.terminal.executeCommand(args.join(' '));
            }
        }