diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
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--- /dev/null
+++ b/ARCHITECTURE.md
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+# TestDrive-JSUI Architecture
+
+**Last Updated**: 2025-12-16
+**Status**: Refactoring to JavaScript-first architecture
+
+---
+
+## π― Core Principle
+
+**TestDrive-JSUI is a JavaScript library, not a Python package.**
+
+The JavaScript code provides all functionality. Python, Ruby, Java, or other language bindings are **integration adapters** that help serve, configure, and test the JavaScript library - they do not provide core functionality.
+
+---
+
+## π Architectural Layers
+
+### Layer 1: Core JavaScript Library (Functionality)
+
+**Location**: `/js/`
+**Purpose**: Complete standalone JavaScript UI framework
+**Dependencies**: Only `marked.js` (markdown parsing)
+**Language**: Pure JavaScript (ES6+)
+
+```
+js/
+βββ testdrive-jsui.js # Main library bundle (future)
+βββ core/ # Core systems
+β βββ debug-system.js # Debug infrastructure
+β βββ section-manager.js # Document section management
+βββ components/ # UI components
+β βββ dom-renderer.js # DOM rendering engine
+β βββ debug-panel.js # Debug UI
+β βββ document-controls.js # Document control UI
+βββ controls/ # Interactive control panels
+β βββ control-base.js # Base control class
+β βββ edit-control.js # Edit mode controls
+β βββ debug-control.js # Debug controls
+β βββ status-control.js # Status indicator
+β βββ contents-control.js # Table of contents
+βββ widgets/ # Reusable UI widgets
+βββ plugins/ # Extension system
+βββ utils/ # Shared utilities
+```
+
+**Key Characteristics**:
+- β
Works standalone in any browser
+- β
No backend required (can load from file://)
+- β
Self-contained markdown rendering
+- β
All UI logic in JavaScript
+- β
Configuration via JSON
+
+**Standalone Usage**:
+```html
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
+---
+
+### Layer 2: Language Adapters (Integration)
+
+**Purpose**: Integration helpers for different backend languages
+**Function**: Serve assets, provide testing, backend integration
+**NOT**: Core functionality implementation
+
+#### Python Adapter
+
+**Location**: `/src/testdrive_jsui/` (optional, for Python projects)
+**Purpose**: Python project integration
+
+```python
+# Python is just a helper to serve/test the JS library
+from testdrive_jsui import TestDriveJSUIAdapter
+
+adapter = TestDriveJSUIAdapter()
+
+# Adapter helps with:
+# 1. Asset serving
+assets = adapter.get_asset_urls()
+
+# 2. HTML template generation
+html = adapter.generate_html(
+ markdown="# Content",
+ mode="edit",
+ config={...}
+)
+
+# 3. Testing JavaScript
+test_result = adapter.run_js_tests()
+```
+
+**Python Adapter Responsibilities**:
+- β
Asset path resolution
+- β
HTML template generation
+- β
Configuration serialization (Python dict β JSON)
+- β
JavaScript test runner integration (pytest β Jest)
+- β
Development server (optional)
+- β **NOT** markdown rendering (JS does this)
+- β **NOT** UI logic (JS does this)
+- β **NOT** content transformation (JS does this)
+
+#### Ruby Adapter (Future)
+
+```ruby
+# Similar concept for Ruby/Rails projects
+adapter = TestDriveJSUI::Adapter.new
+
+# Generate view helper
+<%= testdrive_jsui_editor(
+ markdown: @document.content,
+ mode: :edit
+) %>
+```
+
+#### Java Adapter (Future)
+
+```java
+// Similar concept for Java/Spring projects
+TestDriveJSUIAdapter adapter = new TestDriveJSUIAdapter();
+String html = adapter.generateHtml(markdown, "edit", config);
+```
+
+---
+
+## π Data Flow
+
+### Standalone Mode (No Backend)
+
+```
+1. Browser loads HTML
+2. HTML includes testdrive-jsui.js
+3. JS initializes with config
+4. JS fetches/parses markdown β marked.js
+5. JS renders UI β DOM
+6. User interacts β JS handles everything
+7. Save via JS (localStorage, download, etc.)
+```
+
+### With Backend Adapter (Python/Ruby/Java)
+
+```
+1. Backend serves HTML template
+2. Backend injects config JSON
+3. Backend includes JS/CSS assets
+4. Browser runs JavaScript (same as standalone)
+5. JS may call backend APIs for save/load
+```
+
+**Key Point**: Backend is optional and only for convenience!
+
+---
+
+## π¨ Current vs Target Architecture
+
+### Current (Hybrid - Needs Refactoring)
+
+```
+β Python generates HTML structure
+β Python does markdown fallback rendering
+β JavaScript enhances the Python-generated HTML
+β Tight coupling between Python and JavaScript
+```
+
+### Target (Clean Separation)
+
+```
+β
JavaScript is the complete UI library
+β
JavaScript handles all rendering (markdown β HTML β DOM)
+β
Python/Ruby/Java are thin adapters
+β
Zero coupling - JS works without any backend
+```
+
+---
+
+## π¦ Distribution Models
+
+### Model 1: CDN (Simplest)
+
+```html
+
+
+
+```
+
+### Model 2: npm Package
+
+```bash
+npm install testdrive-jsui
+```
+
+```javascript
+import TestDriveJSUI from 'testdrive-jsui';
+```
+
+### Model 3: With Language Adapter
+
+```bash
+# Python projects
+pip install testdrive-jsui-python
+
+# Ruby projects
+gem install testdrive-jsui
+
+# Java projects
+maven: com.testdrive:testdrive-jsui-java
+```
+
+**Important**: Language adapters are separate packages that bundle/reference the core JS library.
+
+---
+
+## π§ͺ Testing Architecture
+
+### JavaScript Tests (Core)
+
+**Framework**: Jest with jsdom
+**Location**: `/js/tests/`
+**What**: Tests the JavaScript library itself
+
+```javascript
+describe('TestDriveJSUI', () => {
+ test('renders markdown to HTML', () => {
+ const ui = new TestDriveJSUI({...});
+ expect(ui.render('# Hello')).toContain('');
+ });
+});
+```
+
+### Python Integration Tests (Adapter)
+
+**Framework**: pytest
+**Location**: `/tests/` (in Python adapter)
+**What**: Tests Python β JavaScript integration
+
+```python
+def test_python_adapter_runs_js_tests():
+ adapter = TestDriveJSUIAdapter()
+ result = adapter.run_js_tests()
+ assert result.success
+```
+
+**Key**: Python tests verify the adapter works, not the JS functionality!
+
+---
+
+## π§ Configuration System
+
+### JavaScript Configuration (Core)
+
+```javascript
+{
+ // Core JS library config
+ "mode": "edit", // 'edit' | 'view'
+ "theme": "github", // CSS theme
+ "markdown": "# Content", // Initial content
+ "autosave": false, // Auto-save behavior
+ "shortcuts": true, // Keyboard shortcuts
+ "sections": true, // Section management
+ "debug": false // Debug mode
+}
+```
+
+### Adapter Configuration (Language-specific)
+
+```python
+# Python adapter config (separate from JS)
+{
+ "asset_base_url": "/static", # Where to serve JS/CSS
+ "development_mode": True, # Dev vs production
+ "template_path": "...", # HTML template location
+}
+```
+
+**Separation**: JS config controls the library, adapter config controls integration.
+
+---
+
+## π― Migration Path
+
+### Phase 1: Improve Current Structure β
(Starting)
+
+1. β
Document architecture (this file)
+2. βΈοΈ Rename Python code to clearly show it's an adapter
+3. βΈοΈ Ensure JS can work standalone
+4. βΈοΈ Separate JS config from adapter config
+
+### Phase 2: Pure JavaScript Rendering
+
+1. βΈοΈ Move all markdown rendering to JavaScript (use marked.js)
+2. βΈοΈ Remove Python HTML generation
+3. βΈοΈ Make Python adapter purely serve assets + config
+4. βΈοΈ Create standalone HTML example
+
+### Phase 3: Proper Distribution
+
+1. βΈοΈ Bundle JavaScript library (`testdrive-jsui.js`)
+2. βΈοΈ Publish to npm
+3. βΈοΈ Publish to CDN
+4. βΈοΈ Separate Python adapter package
+
+### Phase 4: Additional Adapters
+
+1. βΈοΈ Ruby adapter
+2. βΈοΈ Java adapter
+3. βΈοΈ PHP adapter (if needed)
+
+---
+
+## π Documentation Structure
+
+```
+docs/
+βββ javascript/ # Core JS library docs
+β βββ getting-started.md # Standalone usage
+β βββ api-reference.md # JavaScript API
+β βββ configuration.md # JS config options
+β βββ examples/ # Pure JS examples
+βββ adapters/ # Language adapter docs
+β βββ python/
+β β βββ installation.md
+β β βββ django-integration.md
+β β βββ flask-integration.md
+β βββ ruby/
+β β βββ rails-integration.md
+β βββ java/
+β βββ spring-integration.md
+βββ architecture/
+ βββ ARCHITECTURE.md # This file
+```
+
+---
+
+## π Key Principles
+
+1. **JavaScript First**: All functionality in JavaScript
+2. **Backend Optional**: Works without any backend
+3. **Adapters Not Implementations**: Language bindings help integrate, don't implement
+4. **Clear Boundaries**: JS does UI, backend does serving/storage
+5. **Language Agnostic**: Core library works with any backend
+6. **Zero Lock-in**: Use testdrive-jsui without any specific backend framework
+
+---
+
+## π« Anti-Patterns to Avoid
+
+β **Don't**: Implement UI logic in Python/Ruby/Java
+β
**Do**: Implement UI logic in JavaScript
+
+β **Don't**: Render markdown in backend
+β
**Do**: Render markdown in JavaScript (marked.js)
+
+β **Don't**: Generate HTML structure in backend
+β
**Do**: Generate HTML structure in JavaScript
+
+β **Don't**: Make JavaScript depend on backend APIs
+β
**Do**: Make JavaScript work standalone, optionally call APIs
+
+β **Don't**: Create language-specific forks
+β
**Do**: Create thin adapters around single JS library
+
+---
+
+## π Success Metrics
+
+- [ ] Can use testdrive-jsui with pure HTML file (no backend)
+- [ ] Can use testdrive-jsui with Python/Flask
+- [ ] Can use testdrive-jsui with Ruby/Rails
+- [ ] Can use testdrive-jsui with Java/Spring
+- [ ] JavaScript library < 100KB minified
+- [ ] Zero runtime dependencies except marked.js
+- [ ] Works in all modern browsers
+- [ ] Published to npm and CDN
+
+---
+
+## π€ Contributing
+
+When contributing:
+- Core functionality β JavaScript
+- Integration helpers β Language adapters
+- Keep adapters thin and similar across languages
+- Test JavaScript with Jest
+- Test adapters with language-native tools (pytest, rspec, junit)
+
+---
+
+**Remember**: TestDrive-JSUI is a JavaScript library with optional backend adapters, not a backend framework with JavaScript assets!
diff --git a/JS_FIRST_REFACTORING.md b/JS_FIRST_REFACTORING.md
new file mode 100644
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+++ b/JS_FIRST_REFACTORING.md
@@ -0,0 +1,709 @@
+# JavaScript-First Refactoring Plan
+
+**Goal**: Transform testdrive-jsui from a Python package with JS assets into a **pure JavaScript library** with optional backend adapters.
+
+**Date**: 2025-12-16
+**Status**: Planning
+
+---
+
+## π― Vision
+
+### Before (Current - Hybrid)
+```
+Python (TestDriveJSUIEngine)
+ β generates HTML template
+ β does fallback markdown rendering
+ β injects configuration
+Browser receives: HTML with embedded JS config
+JavaScript: Enhances the pre-rendered HTML
+```
+
+### After (Target - JS-First)
+```
+JavaScript Library (testdrive-jsui.js)
+ β Standalone, works in any browser
+ β Renders markdown using marked.js
+ β Creates full UI
+ β Handles all interactions
+
+Optional: Python/Ruby/Java Adapter
+ β Just serves JS/CSS files
+ β Passes config as JSON
+ β Provides testing helpers
+```
+
+---
+
+## π Phase 1: Create Standalone JavaScript Bundle
+
+### Goal
+Create a single `testdrive-jsui.js` file that works completely standalone in a browser.
+
+### Tasks
+
+#### 1.1: Create Main Library Entry Point
+
+**Create**: `js/testdrive-jsui.js`
+
+```javascript
+/**
+ * TestDrive-JSUI - Standalone JavaScript Markdown Editor
+ *
+ * A complete markdown editing and viewing UI that runs entirely in the browser.
+ * No backend required!
+ *
+ * @version 1.0.0
+ * @requires marked.js (for markdown parsing)
+ */
+
+class TestDriveJSUI {
+ /**
+ * Initialize TestDrive-JSUI
+ *
+ * @param {Object} config - Configuration options
+ * @param {string|HTMLElement} config.container - Container element or selector
+ * @param {string} config.mode - 'edit' or 'view'
+ * @param {string} config.markdown - Initial markdown content
+ * @param {string} config.theme - Theme name (default: 'github')
+ * @param {boolean} config.autosave - Enable autosave (default: false)
+ * @param {Object} config.callbacks - Event callbacks
+ */
+ constructor(config) {
+ this.config = this._validateConfig(config);
+ this.container = this._resolveContainer(config.container);
+
+ // Initialize core systems
+ this.debugSystem = new MarkitectDebugSystem();
+ this.sectionManager = new SectionManager();
+ this.domRenderer = new DOMRenderer(this.sectionManager, this.container);
+
+ // Initialize controls based on mode
+ this._initializeControls();
+
+ // Load initial content
+ if (config.markdown) {
+ this.setContent(config.markdown);
+ }
+ }
+
+ /**
+ * Set markdown content
+ * @param {string} markdown - Markdown text
+ */
+ setContent(markdown) {
+ // Parse markdown to sections
+ const sections = this.sectionManager.createSectionsFromMarkdown(markdown);
+
+ // Render to DOM
+ this.domRenderer.renderAllSections(sections);
+
+ // Emit event
+ this._emit('contentLoaded', { markdown, sections });
+ }
+
+ /**
+ * Get current markdown content
+ * @returns {string} Current markdown
+ */
+ getContent() {
+ return this.sectionManager.getAllSectionsAsMarkdown();
+ }
+
+ /**
+ * Switch between edit and view modes
+ * @param {string} mode - 'edit' or 'view'
+ */
+ setMode(mode) {
+ if (!['edit', 'view'].includes(mode)) {
+ throw new Error(`Invalid mode: ${mode}`);
+ }
+
+ this.config.mode = mode;
+ this._reinitializeControls();
+ this._emit('modeChanged', { mode });
+ }
+
+ /**
+ * Save current content (triggers callback)
+ */
+ save() {
+ const markdown = this.getContent();
+
+ if (this.config.callbacks?.onSave) {
+ this.config.callbacks.onSave(markdown);
+ } else if (this.config.autosave) {
+ // Default: save to localStorage
+ localStorage.setItem('testdrive-jsui-content', markdown);
+ }
+
+ this._emit('saved', { markdown });
+ }
+
+ /**
+ * Destroy the editor and clean up
+ */
+ destroy() {
+ // Clean up controls
+ this.controls?.forEach(control => control?.destroy?.());
+
+ // Clear container
+ this.container.innerHTML = '';
+
+ this._emit('destroyed');
+ }
+
+ // Internal methods
+ _validateConfig(config) {
+ const defaults = {
+ mode: 'edit',
+ theme: 'github',
+ autosave: false,
+ shortcuts: true,
+ sections: true,
+ debug: false,
+ callbacks: {}
+ };
+
+ return { ...defaults, ...config };
+ }
+
+ _resolveContainer(selector) {
+ if (typeof selector === 'string') {
+ const element = document.querySelector(selector);
+ if (!element) {
+ throw new Error(`Container not found: ${selector}`);
+ }
+ return element;
+ }
+ return selector;
+ }
+
+ _initializeControls() {
+ this.controls = [];
+
+ if (this.config.mode === 'edit') {
+ this.controls.push(
+ new EditControl(this),
+ new StatusControl(this),
+ new ContentsControl(this)
+ );
+ }
+
+ if (this.config.debug) {
+ this.controls.push(new DebugControl(this));
+ }
+
+ // Initialize all controls
+ this.controls.forEach(control => control.initialize());
+ }
+
+ _reinitializeControls() {
+ // Destroy old controls
+ this.controls?.forEach(control => control?.destroy?.());
+
+ // Create new controls for current mode
+ this._initializeControls();
+ }
+
+ _emit(event, data) {
+ const callback = this.config.callbacks?.[`on${event.charAt(0).toUpperCase()}${event.slice(1)}`];
+ if (callback) {
+ callback(data);
+ }
+
+ // Also emit as custom event
+ this.container.dispatchEvent(new CustomEvent(`testdrive:${event}`, { detail: data }));
+ }
+}
+
+// Expose globally
+if (typeof window !== 'undefined') {
+ window.TestDriveJSUI = TestDriveJSUI;
+}
+
+// ES module export
+if (typeof module !== 'undefined' && module.exports) {
+ module.exports = TestDriveJSUI;
+}
+```
+
+#### 1.2: Create Standalone HTML Example
+
+**Create**: `examples/standalone.html`
+
+```html
+
+
+
+
+
+ TestDrive-JSUI Standalone Demo
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
+#### 1.3: Update Components to Work Standalone
+
+**Tasks**:
+- Ensure all JS components work without Python-generated HTML
+- Remove any assumptions about server-side rendering
+- Make all components initialize from JavaScript
+
+#### 1.4: Add Markdown Rendering Helper
+
+**Update**: `js/utils/markdown-helper.js` (create if needed)
+
+```javascript
+/**
+ * Markdown rendering utilities
+ * Uses marked.js for parsing
+ */
+const MarkdownHelper = {
+ /**
+ * Render markdown to HTML
+ * @param {string} markdown - Markdown text
+ * @returns {string} HTML string
+ */
+ render(markdown) {
+ if (!window.marked) {
+ throw new Error('marked.js is required but not loaded');
+ }
+
+ // Configure marked
+ marked.setOptions({
+ gfm: true,
+ breaks: true,
+ headerIds: true,
+ mangle: false
+ });
+
+ return marked.parse(markdown);
+ },
+
+ /**
+ * Extract sections from markdown
+ * @param {string} markdown - Markdown text
+ * @returns {Array} Array of section objects
+ */
+ extractSections(markdown) {
+ // Split on headers
+ const sections = [];
+ const lines = markdown.split('\n');
+ let currentSection = { level: 0, title: '', content: '' };
+
+ for (const line of lines) {
+ const headerMatch = line.match(/^(#{1,6})\s+(.+)$/);
+
+ if (headerMatch) {
+ // Save previous section
+ if (currentSection.content) {
+ sections.push(currentSection);
+ }
+
+ // Start new section
+ currentSection = {
+ level: headerMatch[1].length,
+ title: headerMatch[2],
+ content: line + '\n'
+ };
+ } else {
+ currentSection.content += line + '\n';
+ }
+ }
+
+ // Add final section
+ if (currentSection.content) {
+ sections.push(currentSection);
+ }
+
+ return sections;
+ }
+};
+
+if (typeof window !== 'undefined') {
+ window.MarkdownHelper = MarkdownHelper;
+}
+```
+
+---
+
+## π Phase 2: Refactor Python as Thin Adapter
+
+### Goal
+Transform Python code from "rendering engine" to "integration adapter".
+
+### Tasks
+
+#### 2.1: Rename Python Package Structure
+
+```
+src/testdrive_jsui/ # OLD NAME
+ β
+src/testdrive_jsui_python/ # NEW NAME (makes it clear it's an adapter)
+```
+
+Or keep name but rename classes to show they're adapters:
+
+```python
+# Old (implies it does rendering)
+class TestDriveJSUIEngine
+
+# New (clear it's just an adapter)
+class TestDriveJSUIAdapter
+class PythonIntegrationAdapter
+```
+
+#### 2.2: Simplify Python Adapter
+
+**New**: `src/testdrive_jsui/adapter.py`
+
+```python
+"""
+Python Integration Adapter for TestDrive-JSUI
+
+This is NOT the rendering engine - it's a helper for Python projects.
+The JavaScript library does all the actual work.
+"""
+from pathlib import Path
+from typing import Dict, Optional
+import json
+
+class TestDriveJSUIAdapter:
+ """
+ Python integration adapter for TestDrive-JSUI JavaScript library.
+
+ Purpose:
+ - Serve JS/CSS assets
+ - Generate HTML templates with config
+ - Provide testing helpers
+
+ Does NOT:
+ - Render markdown (JS does this)
+ - Implement UI (JS does this)
+ - Transform content (JS does this)
+ """
+
+ def __init__(self):
+ self.js_library_path = self._find_js_library()
+
+ def _find_js_library(self) -> Path:
+ """Locate the JavaScript library files."""
+ # Look in capability directory
+ current = Path(__file__).parent
+ while current.parent != current:
+ js_dir = current / "js"
+ if js_dir.exists() and (js_dir / "testdrive-jsui.js").exists():
+ return js_dir
+ current = current.parent
+ raise FileNotFoundError("testdrive-jsui.js not found")
+
+ def get_asset_urls(self, base_url: str = "/static") -> Dict[str, list]:
+ """
+ Get URLs for JS/CSS assets.
+
+ Helper for web frameworks to include assets in templates.
+ """
+ return {
+ "css": [
+ f"{base_url}/testdrive-jsui/css/editor.css",
+ f"{base_url}/testdrive-jsui/css/controls.css",
+ f"{base_url}/testdrive-jsui/css/themes/github.css",
+ ],
+ "js": [
+ "https://cdn.jsdelivr.net/npm/marked/marked.min.js",
+ f"{base_url}/testdrive-jsui/js/testdrive-jsui.js",
+ ]
+ }
+
+ def generate_html(self,
+ markdown: str,
+ mode: str = "edit",
+ config: Optional[Dict] = None) -> str:
+ """
+ Generate HTML that loads and initializes the JS library.
+
+ This is just a convenience helper - you can write your own template!
+ """
+ config = config or {}
+ config.update({
+ "markdown": markdown,
+ "mode": mode
+ })
+
+ assets = self.get_asset_urls()
+
+ return f"""
+
+
+
+ TestDrive-JSUI
+ {''.join(f'' for url in assets['css'])}
+
+
+
+
+ {''.join(f'' for url in assets['js'])}
+
+
+
+"""
+
+ def run_js_tests(self):
+ """Run JavaScript tests (existing functionality - keep this!)."""
+ from .testing import JavaScriptTestRunner
+ runner = JavaScriptTestRunner(self.js_library_path.parent)
+ return runner.run_js_tests()
+```
+
+#### 2.3: Update Documentation
+
+**Update**: README.md to show Python as optional
+
+```markdown
+## Installation
+
+### Option 1: Use JavaScript Directly (No Backend)
+
+```html
+
+
+```
+
+### Option 2: With Python Adapter (for Django/Flask)
+
+```bash
+pip install testdrive-jsui-python
+```
+
+```python
+from testdrive_jsui import TestDriveJSUIAdapter
+adapter = TestDriveJSUIAdapter()
+html = adapter.generate_html(markdown="# Hello")
+```
+
+### Option 3: With Ruby Adapter (for Rails) - Coming Soon
+
+### Option 4: With Java Adapter (for Spring) - Coming Soon
+```
+
+---
+
+## π Phase 3: Build and Distribution
+
+### Goal
+Package JavaScript library for easy distribution.
+
+### Tasks
+
+#### 3.1: Create Build Script
+
+**Create**: `js/build.js`
+
+```javascript
+/**
+ * Build script for testdrive-jsui
+ * Combines all modules into single distributable file
+ */
+const fs = require('fs');
+const path = require('path');
+
+// Files to concatenate in order
+const files = [
+ 'utils/markdown-helper.js',
+ 'core/debug-system.js',
+ 'core/section-manager.js',
+ 'components/dom-renderer.js',
+ 'components/debug-panel.js',
+ 'controls/control-base.js',
+ 'controls/edit-control.js',
+ 'controls/debug-control.js',
+ 'controls/status-control.js',
+ 'controls/contents-control.js',
+ 'testdrive-jsui.js' // Main class last
+];
+
+// Read and concatenate
+let bundle = '// TestDrive-JSUI v1.0.0 - MIT License\n';
+bundle += '(function() {\n';
+
+for (const file of files) {
+ const content = fs.readFileSync(path.join(__dirname, file), 'utf8');
+ bundle += '\n// === ' + file + ' ===\n';
+ bundle += content + '\n';
+}
+
+bundle += '})();\n';
+
+// Write bundle
+fs.writeFileSync(path.join(__dirname, 'dist', 'testdrive-jsui.js'), bundle);
+
+console.log('β
Built: dist/testdrive-jsui.js');
+```
+
+#### 3.2: Create package.json for npm
+
+**Update**: `package.json`
+
+```json
+{
+ "name": "testdrive-jsui",
+ "version": "1.0.0",
+ "description": "Standalone JavaScript markdown editor with interactive UI",
+ "main": "js/dist/testdrive-jsui.js",
+ "types": "js/testdrive-jsui.d.ts",
+ "files": [
+ "js/dist/",
+ "static/css/",
+ "README.md"
+ ],
+ "scripts": {
+ "build": "node js/build.js",
+ "test": "jest",
+ "prepublish": "npm run build"
+ },
+ "keywords": [
+ "markdown", "editor", "javascript", "standalone", "ui"
+ ],
+ "dependencies": {
+ "marked": "^4.0.0"
+ }
+}
+```
+
+---
+
+## β
Success Criteria
+
+### Phase 1 Complete When:
+- [ ] Can open `standalone.html` in browser (no server needed)
+- [ ] Can edit markdown completely in JavaScript
+- [ ] All UI controls work without Python
+- [ ] marked.js renders markdown in browser
+
+### Phase 2 Complete When:
+- [ ] Python adapter is < 200 lines of code
+- [ ] Python doesn't render markdown
+- [ ] Python doesn't generate HTML structure
+- [ ] Can use testdrive-jsui with Flask/Django via adapter
+
+### Phase 3 Complete When:
+- [ ] Single `testdrive-jsui.js` file works everywhere
+- [ ] Published to npm
+- [ ] Available via CDN
+- [ ] < 100KB minified + gzipped
+
+---
+
+## π
Timeline Estimate
+
+- **Phase 1**: 1-2 days (core JavaScript refactoring)
+- **Phase 2**: 1 day (simplify Python adapter)
+- **Phase 3**: 0.5 day (build and distribution)
+
+**Total**: 2-4 days of focused work
+
+---
+
+## π― Priority Order
+
+1. **Phase 1.2**: Create standalone.html example (proves concept)
+2. **Phase 1.4**: Markdown rendering in JS
+3. **Phase 1.1**: Main library class
+4. **Phase 2.2**: Simplify Python adapter
+5. **Phase 3**: Build and distribution
+
+Start with #1 to validate the approach!