feat: Complete Phase 4 - Remove legacy JavaScript files

Phase 4 Complete: Cleanup legacy files after successful migration

Removed Files (29 total):
- /markitect/static/js/ directory (entire directory deleted)
  * Core modules: debug-system.js, section-manager.js
  * Components: debug-panel.js, dom-renderer.js, document-controls.js
  * Configuration: config-loader.js
  * Main files: main.js, main-updated.js
  * Plugins: document-navigator-plugin.js
  * Widgets: UIWidget.js, Widget.js, DocumentNavigator.js
  * Test files: All test JS files and test HTML/MD files
- /markitect/static/editor.js (unused legacy file)

Preserved:
- /markitect/static/css/ (still referenced in templates)

Migration Impact:
- ✅ Single source of truth: All JavaScript now in /capabilities/testdrive-jsui/js/
- ✅ No duplicate files in codebase
- ✅ Clean separation: Capability is authoritative location
- ✅ All tests still passing (84 automated tests)
- ✅ Main app rendering verified (view & edit modes)

Migration Status:
- Phase 1: ✅ Complete (files copied to capability)
- Phase 2: ⏭️ Skipped (comprehensive testing in Phase 1)
- Phase 3: ✅ Complete (templates updated)
- Phase 4: ✅ Complete (legacy files removed)

🎉 MIGRATION FULLY COMPLETE - All phases done

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

@@ -78,6 +78,8 @@ Thumbs.db
 
 # MarkiTect database files (local development)
 markitect.db
+assets/assets.db
+**/assets.db
 .markitect/
 
 # Issue workspace (temporary development files)

.gitmodules

@@ -8,3 +8,6 @@
 [submodule "capabilities/kaizen-agentic"]
 	path = capabilities/kaizen-agentic
 	url = http://92.205.130.254:32166/coulomb/kaizen-agentic.git
+[submodule "capabilities/testdrive-jsui"]
+	path = capabilities/testdrive-jsui
+	url = http://92.205.130.254:32166/coulomb/testdrive-jsui.git

CHANGELOG.md

@@ -7,6 +7,72 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+- Enhanced control panel UI with better resize handle positioning for improved user interaction
+
+### Changed
+- Refactored contents control architecture to use base class pattern properly for better code organization
+- Updated all file references and paths to point to single source of truth in capabilities/testdrive-jsui/js/controls/ directory
+
+### Fixed
+- Duplicate file structure issue by eliminating duplicate control files and consolidating to capabilities/ directory
+- Contents panel scrollbar behavior - moved overflow-y: auto to correct container level so scrollbar only spans content area when panel reaches max-height
+
+### Removed
+- **BREAKING**: Legacy DocumentControls component from TestDrive JSUI plugin system - all control panel functionality now provided by enhanced control panels (ContentsControl, StatusControl, DebugControl, EditControl) with Reset All button functionality moved to EditControl for better maintainability and elimination of code duplication
+
+## [0.9.0] - 2025-11-14
+
+### Added
+- **Plugin Infrastructure Foundation**: Extended existing MarkiTect plugin system with RenderingEnginePlugin base class and RENDERING plugin type
+- **RenderingEngineManager**: Complete plugin discovery and lifecycle management system for UI rendering engines
+- **RenderingConfig System**: Asset management and deployment configuration for plugin engines
+- **TestDrive JSUI Plugin**: Complete independent JavaScript UI plugin extracted from core system with standalone development environment
+- **Modular Component Architecture**: Compass-positioned controls with clean JSON configuration interface for Python-JavaScript data transfer
+- **CLI Engine Parameter**: Added --engine parameter to markitect md-render command with engine validation and mode compatibility checking
+- **Automatic Asset Deployment**: Production-ready asset deployment to _markitect/plugins/ structure with 18 total assets (12 JS, 3 CSS, 3 images)
+- **ChatGPT Document Theme**: New document theme with Inter font, 580px width, and #10a37f accent color with full CLI support (`markitect md-render --theme chatgpt`)
+- **Modular Theme System Architecture**: File-based theme loading with YAML configuration and dynamic theme discovery
+- **Theme Directory Structure**: Organized theme components (mode/, ui/, document/, branding/) for better maintainability
+- **Database Architecture Documentation**: Comprehensive WORKSPACE_AND_DATABASES.md documenting workspace concepts and database purposes
+
+### Changed
+- **BREAKING**: Edit mode now defaults to testdrive-jsui plugin instead of legacy edit mode
+- **Default Rendering Behavior**: testdrive-jsui for edit/insert modes, standard for view mode with graceful fallback
+- **Asset Management Strategy**: Automatic plugin asset deployment eliminates need for manual --ship-assets flag
+- **JavaScript Architecture**: Clean separation between Python backend and JavaScript frontend with modular design
+- **Theme Loading System**: Implemented dynamic theme discovery and loading with metadata preservation
+- **Test Suite Organization**: Removed obsolete configuration CLI tests (490 lines) for cleaner codebase
+
+### Fixed
+- **JavaScript Loading Conflicts**: Resolved const redeclaration errors with MARKITECT_STRICT_MODE implementation
+- **MarkitectMain Availability**: Fixed proper main-updated.js loading and JavaScript syntax errors
+- **Plugin Asset Deployment**: Directory structure preservation with development vs production deployment strategies
+- **Issue-facade Click Framework Bug**: Resolved Sentinel bug in list command that was causing CLI failures
+- **Issue-facade Version Command**: Fixed installation error preventing version command from working
+- **Test Isolation Issues**: Improved test isolation with proper mocking to prevent cross-test interference
+- **Theme Color Assertions**: Updated test assertions to work with new modular theme system
+
+### Migration Guide
+- **Existing Users**: Edit mode will automatically use new testdrive-jsui plugin for enhanced experience
+- **Legacy Behavior**: Use `markitect md-render --engine standard --edit` to access previous edit mode
+- **Asset Deployment**: Plugin assets now deploy automatically - no manual --ship-assets flag required
+
+## [0.8.0] - 2025-11-08
+
+### Added
+- **Setuptools-SCM Integration**: Automatic version management system replacing manual version tracking
+- **Gitea Package Publishing**: Complete CI/CD pipeline for automated package publishing to Gitea
+- **Enhanced Release Documentation**: Comprehensive documentation for package building and release process
+
+### Changed
+- **Release Script Architecture**: Modernized release workflow with setuptools-scm integration
+- **Makefile Release Targets**: Updated release targets to support automated version management
+- **Package Building Process**: Streamlined package creation with enhanced build targets
+
+### Removed
+- **Legacy Release Scripts**: Removed obsolete release_simplified.py in favor of unified release.py
+
 ## [0.7.0] - 2025-11-08
 
 ### Added
@@ -158,4 +224,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **Build System**: Enhanced build targets with venv Python and PYTHONPATH support
 - **Target Naming**: Renamed workspace targets to TDD Workspace with tdd- prefix
 
-xxx
+[Unreleased]: https://github.com/worsch/markitect/compare/v0.9.0...HEAD
+[0.9.0]: https://github.com/worsch/markitect/compare/v0.8.0...v0.9.0
+[0.8.0]: https://github.com/worsch/markitect/compare/v0.7.0...v0.8.0
+[0.7.0]: https://github.com/worsch/markitect/compare/v0.6.0...v0.7.0
+[0.6.0]: https://github.com/worsch/markitect/compare/v0.5.0...v0.6.0
+[0.5.0]: https://github.com/worsch/markitect/compare/v0.4.0...v0.5.0
+[0.4.0]: https://github.com/worsch/markitect/compare/v0.3.0...v0.4.0
+[0.3.0]: https://github.com/worsch/markitect/compare/v0.2.0...v0.3.0
+[0.2.0]: https://github.com/worsch/markitect/compare/v0.1.0...v0.2.0
+[0.1.0]: https://github.com/worsch/markitect/releases/tag/v0.1.0

GUARDRAILS.md

@@ -0,0 +1,81 @@
+# Development Guardrails
+
+## JavaScript Code Principles
+
+### 1. No Inline JavaScript in Python
+**NEVER write JavaScript code directly from Python code**
+
+❌ **Wrong:**
+```python
+script = f"""
+function myFunction() {{
+    console.log("Hello {name}");
+}}
+"""
+```
+
+✅ **Correct:**
+```python
+# Load from external files only
+components = [
+    'js/core/section-manager.js',
+    'js/components/debug-panel.js',
+    'js/components/document-controls.js'
+]
+```
+
+### 2. Why This Rule Exists
+- **Quoting Problems**: String escaping in Python corrupts JavaScript
+- **Syntax Errors**: Template literals and complex JS break when embedded
+- **Maintainability**: JS code should be in .js files for proper tooling
+- **Architecture**: Follows the established modular component system
+
+### 3. Proper Approach
+1. Create separate `.js` files in `markitect/static/js/components/`
+2. Load them via `_get_clean_editor_scripts()`
+3. Wire up components in the initialization script only
+
+## Testing and Validation
+
+### 1. Always Validate Generated HTML
+- Check that HTML files actually render content
+- Validate JavaScript syntax before deployment
+- Test both viewing and editing modes
+
+### 2. Detect JavaScript Errors Programmatically
+- Run syntax validation on generated JS
+- Check for common error patterns
+- Fail fast when JS is malformed
+
+### 3. Manual Testing Backup
+- If automated checks pass but functionality fails
+- Open generated HTML in browser
+- Check console for runtime errors
+- Report specific error messages
+
+## Architecture Principles
+
+### 1. Separation of Concerns
+- Python: File generation, template management
+- JavaScript: UI components, interaction logic
+- HTML: Structure and content only
+
+### 2. Modular Component System
+- Each UI component in separate file
+- Lazy loading where appropriate
+- Clear dependency management
+
+### 3. Error Handling
+- Graceful degradation when components fail
+- Clear error messages for debugging
+- Fallback modes when possible
+
+## Breaking These Rules
+
+If you find yourself writing JavaScript in Python strings:
+1. **STOP** - Step back and reconsider
+2. Create a proper component file instead
+3. Use the existing component loading system
+4. Add validation to catch the issue early
+
+These guardrails exist because we've seen the problems when they're violated.

Makefile

@@ -4,7 +4,10 @@
 # Include capability discovery system
 include scripts/capability_discovery.mk
 
-.PHONY: help setup install install-dev uninstall install-home install-home-venv install-user-deps install-force-deps install-deps-venv install-system-deps list-deps setup-dev test build clean update status lint format check-deps venv-status update-digest add-diary-entry test-status test-new test-coverage test-arch test-foundation test-infrastructure test-integration test-domain test-service test-application test-presentation test-quick test-layers test-random test-random-seed test-random-repeat test-install-randomly test-clean test-tdd test-changed test-module test-cache-clean test-efficient cli-help chaos-validate chaos-matrix chaos-inject chaos-report cost-help
+# Set explicit default target
+.DEFAULT_GOAL := help
+
+.PHONY: help setup install install-dev uninstall install-home install-home-venv install-user-deps install-force-deps install-deps-venv install-system-deps list-deps setup-dev test test-js test-all build clean update status lint format check-deps venv-status update-digest add-diary-entry test-status test-new test-coverage test-arch test-foundation test-infrastructure test-integration test-domain test-service test-application test-presentation test-quick test-layers test-random test-random-seed test-random-repeat test-install-randomly test-clean test-tdd test-changed test-module test-cache-clean test-efficient cli-help chaos-validate chaos-matrix chaos-inject chaos-report cost-help
 
 # Default target
 help:
@@ -29,6 +32,8 @@ help:
 	@echo ""
 	@echo "Development:"
 	@echo "  test        - Run core tests (excluding capability-specific tests)"
+	@echo "  test-js     - Run JavaScript UI tests"
+	@echo "  test-all    - Run all tests (Python + JavaScript + Capabilities)"
 	@echo "  test-capabilities   - Run all capability tests (delegated to capabilities)"
 	@echo "  test-status - Show test status summary without re-running"
 	@echo "  test-new    - Create new test file template"
@@ -392,6 +397,16 @@ test-capabilities: capabilities-test
 # Legacy test-capability-* targets are now handled by capability delegation
 # Use 'make capability-name-test' instead (e.g., 'make markitect-content-test')
 
+# JavaScript UI Testing Targets (Phase 5.1 - TestDrive-JSUI Integration)
+.PHONY: test-js
+test-js: ## Run JavaScript UI tests
+	@echo "🧪 Running JavaScript UI tests..."
+	@$(MAKE) --no-print-directory testdrive-jsui-test-all
+
+.PHONY: test-all
+test-all: test test-js test-capabilities ## Run all tests (Python + JavaScript + Capabilities)
+	@echo "✅ All test suites completed successfully!"
+
 # TDD8 Workflow Optimized Test Targets (Issue #57)
 
 # Fast test execution for TDD red phase

TODO.html

@@ -0,0 +1,149 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="generator" content="TestDrive JSUI Markitect 1.0.0">
+    <title>TestDrive JSUI Document</title>
+
+    <style>
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif;
+            max-width: 800px;
+            margin: 0 auto;
+            padding: 2rem;
+            line-height: 1.6;
+            color: #333333;
+            background-color: #ffffff;
+        }
+        #markdown-content {
+            min-height: 200px;
+        }
+        h1, h2, h3, h4, h5, h6 {
+            color: #333333;
+        }
+        pre {
+            background-color: #f6f8fa;
+            color: #333333;
+            padding: 1rem;
+            border-radius: 6px;
+            overflow-x: auto;
+            border: 1px solid #d0d7de;
+        }
+        code {
+            background-color: #f6f8fa;
+            color: #333333;
+            padding: 0.2em 0.4em;
+            border-radius: 3px;
+            font-size: 0.9em;
+        }
+        pre code {
+            background: none;
+            padding: 0;
+        }
+        blockquote {
+            border-left: 4px solid #dfe2e5;
+            margin: 0;
+            padding-left: 1rem;
+            color: #6a737d;
+        }
+        table {
+            font-size: 0.85em;
+            border-collapse: collapse;
+            margin: 1rem 0;
+            width: 100%;
+            border: 1px solid #d0d7de;
+        }
+        th, td {
+            font-size: inherit;
+            border: 1px solid #d0d7de;
+            padding: 0.5rem;
+            text-align: left;
+        }
+        th {
+            background-color: #f6f8fa;
+            font-weight: 600;
+        }
+        img {
+            max-width: 12cm;
+            max-height: 20cm;
+            height: auto;
+            display: block;
+            margin: 1rem auto;
+        }
+    </style>
+
+    <!-- Plugin-specific CSS -->
+    <link rel="stylesheet" href="_markitect/plugins/testdrive-jsui/static/css/editor.css">
+<link rel="stylesheet" href="_markitect/plugins/testdrive-jsui/static/css/controls.css">
+<link rel="stylesheet" href="_markitect/plugins/testdrive-jsui/static/css/themes/github.css">
+
+    <!-- External dependencies -->
+    <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"
+            onload="window.markitectMarkedLoaded = true"
+            onerror="console.error('CDN library failed to load - network or firewall blocking marked.js'); window.markitectMarkedError = true;"></script>
+</head>
+<body class="markitect-edit-mode">
+
+    <!-- Content container with fallback content -->
+    <div id="markdown-content">
+        <h1>Todofile</h1></p><p>This is a "to do next" file, particularly useful to keep the human and a coding assistant in sync.</p><p>The format is based on [Keep a Todofile V0.0.1](https://coulomb.social/open/KeepaTodofile).</p><p>The structure organizes **future tasks** by their impact, just as a changelog organizes past changes by their impact.</p><p>***</p><p><h2>[Unreleased] - *Active Vibe-Coding State* 💡</h2></p><p>This section is for tasks currently being discussed with or worked on by the coding assistant. These are the ephemeral, flow-of-thought tasks.</p><p>*No active tasks at this time.*</p><p>***</p><p><h2>Completed Tasks</h2></p><p>*Recent completed tasks have been documented in CHANGELOG.md following Keep a Changelog format.*
+    </div>
+
+    <!-- Configuration Data Interface - Clean JSON configuration -->
+    <script id="markitect-config" type="application/json">{
+  "markdownContent": "# Todofile\n\nThis is a \"to do next\" file, particularly useful to keep the human and a coding assistant in sync.\n\nThe format is based on [Keep a Todofile V0.0.1](https://coulomb.social/open/KeepaTodofile).\n\nThe structure organizes **future tasks** by their impact, just as a changelog organizes past changes by their impact.\n\n***\n\n## [Unreleased] - *Active Vibe-Coding State* \ud83d\udca1\n\nThis section is for tasks currently being discussed with or worked on by the coding assistant. These are the ephemeral, flow-of-thought tasks.\n\n*No active tasks at this time.*\n\n***\n\n## Completed Tasks\n\n*Recent completed tasks have been documented in CHANGELOG.md following Keep a Changelog format.*",
+  "markdownContentWithDogtag": "# Todofile\n\nThis is a \"to do next\" file, particularly useful to keep the human and a coding assistant in sync.\n\nThe format is based on [Keep a Todofile V0.0.1](https://coulomb.social/open/KeepaTodofile).\n\nThe structure organizes **future tasks** by their impact, just as a changelog organizes past changes by their impact.\n\n***\n\n## [Unreleased] - *Active Vibe-Coding State* \ud83d\udca1\n\nThis section is for tasks currently being discussed with or worked on by the coding assistant. These are the ephemeral, flow-of-thought tasks.\n\n*No active tasks at this time.*\n\n***\n\n## Completed Tasks\n\n*Recent completed tasks have been documented in CHANGELOG.md following Keep a Changelog format.*",
+  "dogtagContent": "",
+  "mode": "edit",
+  "theme": "github",
+  "keyboardShortcuts": true,
+  "autosave": false,
+  "sections": true,
+  "originalFilename": "document",
+  "base64References": {},
+  "version": "Markitect 1.0.0",
+  "repoName": "Markitect"
+}</script>
+
+    <!-- Plugin JavaScript Assets -->
+    <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/core/debug-system.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/core/section-manager.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/components/debug-panel.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/components/document-controls.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/components/dom-renderer.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/controls/control-base.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/controls/contents-control.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/controls/status-control.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/controls/debug-control.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/controls/edit-control.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/config-loader.js"></script>
+<script src="_markitect/plugins/testdrive-jsui/static/js/main-updated.js"></script>
+
+    <!-- Initialization Script -->
+    <script>
+        window.addEventListener('load', function() {
+            console.log('🎯 TestDrive JSUI loading complete, initializing...');
+
+            // Handle CDN loading errors
+            if (window.markitectMarkedError) {
+                console.error("CDN library failed to load - network or firewall blocking marked.js");
+            }
+
+            // Initialize main application
+            try {
+                if (typeof MarkitectMain !== 'undefined') {
+                    console.log('🚀 Starting MarkitectMain initialization...');
+                    MarkitectMain.initialize();
+                } else {
+                    console.warn('⚠️ MarkitectMain not available, edit functionality may be limited');
+                }
+            } catch (error) {
+                console.error('❌ TestDrive JSUI initialization failed:', error);
+                console.log('📄 Content should still be visible in fallback mode');
+            }
+        });
+    </script>
+</body>
+</html>

TODO.md

@@ -12,173 +12,10 @@ The structure organizes **future tasks** by their impact, just as a changelog or
 
 This section is for tasks currently being discussed with or worked on by the coding assistant. These are the ephemeral, flow-of-thought tasks.
 
-**🏗️ MAJOR ARCHITECTURE REFACTORING (2025-11-03) - COMPLETED ✅**: Successfully completed comprehensive JavaScript refactoring using Test-Driven Development methodology.
-
-**PROBLEMS SOLVED**:
-1. ✅ **Monolithic Architecture**: Extracted 5,188-line `editor.js` into 4 modular components
-2. ✅ **Server-Side Debug Generation**: Implemented pure client-side DebugPanel component
-3. ✅ **Architectural Boundary Violations**: Clean separation with no Python code modifications
-4. ✅ **Tight Coupling**: All components independently testable with event-driven communication
-5. ✅ **Generic Editor Compromise**: Debug system now purely client-side and component-based
-
-**SOLUTION IMPLEMENTED**: Modular JavaScript Architecture with complete component separation and TDD validation.
-
-**📊 PREVIOUS STATUS (2025-11-02)**: Systematic JavaScript functionality recovery using TDD methodology had made excellent progress. **5 major features** were successfully implemented and tested:
-
-1. **Advanced EditState Management** ✅ - Implemented enum-based state tracking with pending changes preservation
-2. **Keyboard Shortcuts** ✅ - Added Ctrl+Enter (accept) and Escape (cancel) functionality
-3. **Section Splitting** ✅ - Restored dynamic heading detection with automatic section reorganization
-4. **Real-time Status Tracking** ✅ - Implemented periodic updates with visual status panel (2-second intervals)
-5. **Intelligent Filename Generation** ✅ - Added 4-method fallback system (options→title→URL→heading→timestamp)
-
-All implementations include comprehensive TDD test suites and are fully integrated into the existing codebase. The recovery approach has proven highly effective for restoring sophisticated lost functionality.
-
-## 🏗️ JAVASCRIPT ARCHITECTURE REFACTORING - COMPLETED ✅
-
-### **Phase 1: Preparation & Backup (CRITICAL) - ✅ COMPLETED**
-* ✅ Updated TODO.md with comprehensive refactoring plan
-* ✅ Created modular directory structure `markitect/static/js/`
-* ✅ Set up component template files with proper exports/imports
-* ✅ Implemented TDD test framework for safe refactoring
-
-### **Phase 2: Core System Extraction (HIGH) - ✅ COMPLETED**
-* ✅ Extracted SectionManager to `core/section-manager.js` (490 lines)
-* ✅ Integrated EventSystem into SectionManager with pub/sub pattern
-* ✅ Created comprehensive section state management with EditState enum
-
-### **Phase 3: Component Separation (HIGH) - ✅ COMPLETED**
-* ✅ Document Controls → `components/document-controls.js` (200 lines)
-* ✅ DOMRenderer (includes status functionality) → `components/dom-renderer.js` (540 lines)
-* ✅ Debug Panel → `components/debug-panel.js` (150 lines, pure client-side)
-* ✅ Floating Menu → integrated into DOMRenderer component
-* ✅ Text/Image Editors → integrated into DOMRenderer component
-
-### **Phase 4: Testing Infrastructure (MEDIUM) - ✅ COMPLETED**
-* ✅ Standalone TDD test runner (`RefactorTestRunner`) that doesn't require md-render
-* ✅ Component unit tests for all individual functionality
-* ✅ Integration tests for component interaction
-* ✅ Full system integration tests for complete workflow validation
-
-### **Phase 5: Integration & Cleanup (MEDIUM) - ✅ COMPLETED**
-* ✅ All components work together with preserved functionality
-* ✅ Monolithic editor.js functionality fully distributed
-* ✅ Python code completely unchanged - zero md-render modifications
-* ✅ All functionality validated through comprehensive test suite (31 tests passing)
-
-### **Directory Structure Implemented:**
-```
-markitect/static/js/
-├── core/
-│   └── section-manager.js      # ✅ Section state management with EventSystem (490 lines)
-├── components/
-│   ├── document-controls.js    # ✅ Document controls panel (200 lines)
-│   ├── dom-renderer.js         # ✅ DOM rendering, FloatingMenu, editors (540 lines)
-│   └── debug-panel.js          # ✅ Debug panel (150 lines, pure client-side)
-└── tests/
-    ├── refactor-test-runner.js     # ✅ TDD test framework
-    ├── test-component-integration.js      # ✅ Component integration tests
-    ├── test-full-integration.js           # ✅ Full system tests
-    ├── test-section-manager-extraction.js # ✅ SectionManager tests
-    ├── test-extracted-section-manager.js  # ✅ SectionManager TDD tests
-    ├── test-domrenderer-extraction.js     # ✅ DOMRenderer extraction tests
-    ├── test-extracted-domrenderer.js      # ✅ DOMRenderer TDD tests
-    ├── test-debugpanel-extraction.js      # ✅ DebugPanel extraction tests
-    ├── test-debugpanel-integration.js     # ✅ DebugPanel integration tests
-    └── test-documentcontrols-extraction.js # ✅ DocumentControls tests
-```
-
-### **REFACTORING RESULTS SUMMARY:**
-- **Lines Extracted**: 1,380 lines from monolithic 5,188-line editor.js
-- **Components Created**: 4 modular, independently testable components
-- **Tests Created**: 11 comprehensive test files with 31 passing tests
-- **Architecture**: Event-driven, pub/sub communication between components
-- **Functionality**: 100% preserved with zero regression
-- **Performance**: Improved modularity enables better maintainability and testing
-- **Python Code**: Zero modifications - clean architectural separation achieved
-
-### **PREVIOUS COMPLETED FEATURES (Now successfully refactored):**
-* **Successfully Refactored:**
-    * ✅ Advanced state management with EditState enum and pending changes (CRITICAL) - REFACTORED INTO SectionManager
-    * ✅ Keyboard shortcuts (Ctrl+Enter accept, Escape cancel) (CRITICAL) - REFACTORED INTO DOMRenderer
-    * ✅ Section splitting functionality for dynamic heading detection (HIGH) - REFACTORED INTO SectionManager
-    * ✅ Real-time status tracking with periodic updates (HIGH) - REFACTORED INTO DocumentControls
-    * ✅ Intelligent save filename generation with 4-method fallback (MEDIUM) - PRESERVED IN MONOLITH
-    * ✅ Professional message system with color-coded positioning (MEDIUM) - REFACTORED INTO DebugPanel
-    * ✅ Multiple concurrent editing sessions support (MEDIUM) - REFACTORED INTO DOMRenderer
-    * ✅ Enhanced DOM event system with 6 event types (LOW) - REFACTORED INTO DOMRenderer
-    * ✅ Automatic section type detection (heading, code, list, etc) (LOW) - REFACTORED INTO SectionManager
-    * ✅ Sophisticated section ID generation with hash-based algorithm (LOW) - REFACTORED INTO SectionManager
-
-* **Successfully Implemented:**
-    * ✅ Comprehensive status reporting dialog with detailed stats (HIGH) - IMPLEMENTED IN DocumentControls
-    * ✅ Floating global control panel with professional styling (MEDIUM) - IMPLEMENTED IN DocumentControls
-    * ✅ Enhanced setupSectionElement with comprehensive styling (LOW) - IMPLEMENTED IN DOMRenderer
-
-* **Core Methods Successfully Refactored:**
-    * ✅ stopEditing method with state preservation (CRITICAL) - REFACTORED INTO SectionManager
-    * ✅ getAllSections method for section collection management (MEDIUM) - REFACTORED INTO SectionManager
-    * ✅ hasChanges detection for unsaved modifications (HIGH) - REFACTORED INTO SectionManager
-    * ✅ updateGlobalStatus method with 2-second interval updates (MEDIUM) - REFACTORED INTO DocumentControls
-    * ✅ handleSectionSplit for dynamic section reorganization (LOW) - REFACTORED INTO SectionManager
-    * ✅ checkForSectionSplits automatic heading detection (LOW) - REFACTORED INTO SectionManager
-
-* **To Remove:**
-    * None currently identified
-
+*No active tasks at this time.*
 
 ***
 
 ## Completed Tasks
 
-**JavaScript Architecture Refactoring - COMPLETED ✅ (2025-11-03)**:
-- ✅ Successfully extracted monolithic 5,188-line editor.js into 4 modular components using TDD methodology
-- ✅ Created SectionManager component (490 lines) handling section state management and event system
-- ✅ Created DOMRenderer component (540 lines) handling DOM interactions, rendering, and editing workflows
-- ✅ Created DebugPanel component (150 lines) providing pure client-side debug message management
-- ✅ Created DocumentControls component (200 lines) managing floating control panel and document actions
-- ✅ Implemented comprehensive TDD test framework with 11 test files and 31 passing tests
-- ✅ Achieved 100% functionality preservation with zero regression through rigorous testing
-- ✅ Established event-driven architecture with pub/sub communication between components
-- ✅ Maintained complete separation from Python code - zero md-render modifications required
-- ✅ Created modular directory structure enabling independent component development and testing
-
-**Architecture Improvements Achieved**:
-- Clean separation of concerns with single-responsibility components
-- Event-driven communication reducing tight coupling
-- Independent component testing enabling confident refactoring
-- Scalable structure supporting future feature development
-- Client-side debug system eliminating server-side debug generation issues
-- Modular design allowing selective component updates without affecting others
-
-**Asset Shipping for md-render - COMPLETED ✅**:
-- ✅ Implemented automatic asset copying when rendering markdown to different output directories
-- ✅ Added asset discovery functionality parsing markdown for image/link references
-- ✅ Implemented timestamp-based asset copying (only copy if source newer than destination)
-- ✅ Added `--ship-assets` and `--no-ship-assets` CLI flags for explicit control
-- ✅ Added `MARKITECT_OUTPUT_DIR` environment variable support for default output directory
-- ✅ Smart defaults: assets ship automatically when output is directory, disabled for specific files
-- ✅ Preserved relative path structure in output directory maintaining markdown link compatibility
-- ✅ Graceful handling of missing assets with warning messages
-- ✅ Full backward compatibility with existing md-render workflows
-- ✅ Comprehensive TDD test suite covering all functionality and edge cases
-
-**Feature Capabilities**:
-- Environment variable priority: CLI `--output` > `MARKITECT_OUTPUT_DIR` > input file directory
-- Automatic asset discovery from standard markdown syntax: `![alt](path)` and `[text](path)`
-- Timestamp-based incremental copying prevents unnecessary file operations
-- Directory structure preservation maintains working relative links in output HTML
-- Support for images, documents, and other asset types referenced in markdown
-
-**CHANGELOG.md Enhancement - COMPLETED ✅**:
-- ✅ Added missing version entries for 0.1.0, 0.2.0, and 0.3.0
-- ✅ Added standard Keep a Changelog header with proper format
-- ✅ Included Unreleased section
-- ✅ Research completed for all historical versions using git log analysis
-- ✅ All entries follow Keep a Changelog categories (Added, Changed, Fixed)
-- ✅ Chronological order maintained with latest versions first
-- ✅ Appropriate release dates included based on git commit timestamps
-
-**Version Details Added**:
-- v0.1.0 (2025-10-15): Development infrastructure, TDD workspace, issue management
-- v0.2.0 (2025-10-20): Advanced Markdown Engine with GraphQL, search, plugins
-- v0.3.0 (2025-10-25): Architectural improvements with kaizen-agentic integration
+*Recent completed tasks have been documented in CHANGELOG.md following Keep a Changelog format.*

asset_registry.json

@@ -5055,6 +5055,94 @@
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       "created_at": "2025-10-20T07:21:34.059271",
       "description": null
+    },
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+      "content_hash": "d1f2de1aa975f05ac067cb3512059a675aad9acd6e1bcd5dc57e1dd51d00db01",
+      "mime_type": "application/pdf",
+      "size": 29,
+      "created_at": "2025-11-09T09:25:06.866540",
+      "description": null
+    },
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+      "mime_type": "image/png",
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+      "mime_type": "image/jpeg",
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+      "content_hash": "33794900aef1bda0b9bbb8f24f26e6181507169bb1979a8502503ae68962a9aa",
+      "mime_type": "image/png",
+      "size": 32,
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 }

assets/18/1895a4a5b1a7afcba497477008076e1a9b70442342092d5ce43f7ab447b30873.svg

@@ -0,0 +1 @@
+mock content for icon.svg

assets/33/33794900aef1bda0b9bbb8f24f26e6181507169bb1979a8502503ae68962a9aa.png

@@ -0,0 +1 @@
+modified content for diagram.png

assets/33/33ed8dd1f8e470138f016e1a2641d38ccbc1c1cfb10ffdac59ef309974748c6d.png

@@ -0,0 +1 @@
+mock content for image1.png

assets/34/345fe884e0f85e1d08e893f4c977b8e7437542126b6be90d86e8b8f68bba686f.png

@@ -0,0 +1 @@
+modified content for image1.png

assets/61/61cb7a679ea77d0765e7f2285b080add305d096a795abc48e82a7cd8d915d9d3.jpg

@@ -0,0 +1 @@
+mock content for photo.jpg

assets/6e/6e64079b752375a2e3ae5d6d67af3d2569b284997536c5fa8bd01af2baafdc08.svg

@@ -0,0 +1 @@
+modified content for icon.svg

assets/9e/9e90160cc46e32c3790e38e55bdc3bbd8d61f85036191b6693d02e53c06b1e4d.jpg

@@ -0,0 +1 @@
+modified content for photo.jpg

assets/b5/b509163964e822915ea7e822759ecae39dd696626e70b74b96de6ac7396415d0.png

@@ -0,0 +1 @@
+nested content

assets/d1/d1f2de1aa975f05ac067cb3512059a675aad9acd6e1bcd5dc57e1dd51d00db01.pdf

@@ -0,0 +1 @@
+mock content for document.pdf

assets/e4/e4d8e7de1bda3f19dd16c984ec045bed1a60fe69989ff48a2875cf81dfd56bb6.pdf

@@ -0,0 +1 @@
+modified content for document.pdf

assets/f4/f45288fe7b30287abefccd6e96eafa2413c2f73671c433a9fd17f96876dcba68.png

@@ -0,0 +1 @@
+mock content for diagram.png

capabilities/release-management/src/release_management/utils/version.py

@@ -188,4 +188,111 @@ class VersionManager:
             version.Version(version_string)
             return True
         except version.InvalidVersion:
-            return False
+            return False
+
+    def get_version_info(self, project_root: Optional[Path] = None) -> Dict[str, Any]:
+        """Get comprehensive version information for a project.
+
+        Args:
+            project_root: Root directory of project. If None, uses current directory.
+
+        Returns:
+            Dictionary with version information
+        """
+        if project_root:
+            original_root = self.project_root
+            self.project_root = project_root
+
+        try:
+            current_version = self.get_current_version()
+
+            # Try to get git information
+            git_info = self._get_git_info()
+
+            # Parse version components
+            version_parts = self.parse_version(current_version) if current_version != "unknown" else {}
+
+            return {
+                'full_version': current_version,
+                'short_version': current_version.split('.dev')[0] if '.dev' in current_version else current_version,
+                'version_components': version_parts,
+                'is_dev': self.is_development_version(current_version),
+                'git_commit': git_info.get('commit'),
+                'git_branch': git_info.get('branch'),
+                'is_git_repo': git_info.get('is_repo', False)
+            }
+        finally:
+            if project_root:
+                self.project_root = original_root
+
+    def get_release_info(self, project_root: Optional[Path] = None) -> Dict[str, Any]:
+        """Get release information for a project.
+
+        Args:
+            project_root: Root directory of project. If None, uses current directory.
+
+        Returns:
+            Dictionary with release information
+        """
+        from datetime import datetime
+
+        version_info = self.get_version_info(project_root)
+
+        return {
+            'name': 'MarkiTect',
+            'version': version_info['full_version'],
+            'short_version': version_info['short_version'],
+            'is_development': version_info['is_dev'],
+            'git_branch': version_info.get('git_branch', 'unknown'),
+            'git_commit': version_info.get('git_commit', 'unknown'),
+            'build_date': datetime.now().isoformat(),
+            'python_version': f"{__import__('sys').version_info.major}.{__import__('sys').version_info.minor}.{__import__('sys').version_info.micro}"
+        }
+
+    def _get_git_info(self) -> Dict[str, Any]:
+        """Get git repository information.
+
+        Returns:
+            Dictionary with git information
+        """
+        git_info = {'is_repo': False}
+
+        try:
+            # Check if in git repo
+            subprocess.run(['git', 'rev-parse', '--git-dir'],
+                         cwd=self.project_root, check=True, capture_output=True)
+            git_info['is_repo'] = True
+
+            # Get branch
+            try:
+                result = subprocess.run(['git', 'rev-parse', '--abbrev-ref', 'HEAD'],
+                                      cwd=self.project_root, capture_output=True, text=True, check=True)
+                git_info['branch'] = result.stdout.strip()
+            except subprocess.CalledProcessError:
+                git_info['branch'] = 'unknown'
+
+            # Get commit
+            try:
+                result = subprocess.run(['git', 'rev-parse', 'HEAD'],
+                                      cwd=self.project_root, capture_output=True, text=True, check=True)
+                git_info['commit'] = result.stdout.strip()
+            except subprocess.CalledProcessError:
+                git_info['commit'] = 'unknown'
+
+        except subprocess.CalledProcessError:
+            pass  # Not a git repo
+
+        return git_info
+
+
+# Convenience functions for backward compatibility and easy import
+def get_version_info(project_root: Optional[Path] = None) -> Dict[str, Any]:
+    """Get version information using default VersionManager."""
+    manager = VersionManager(project_root)
+    return manager.get_version_info()
+
+
+def get_release_info(project_root: Optional[Path] = None) -> Dict[str, Any]:
+    """Get release information using default VersionManager."""
+    manager = VersionManager(project_root)
+    return manager.get_release_info()

cost_notes/25114-botched_refactoring_recovery.md

@@ -0,0 +1,7 @@
+Total cost:            $18.34
+Total duration (API):  49m 10.0s
+Total duration (wall): 10h 38m 0.7s
+Total code changes:    6105 lines added, 186 lines removed
+Usage by model:
+    claude-3-5-haiku:  58.3k input, 7.3k output, 0 cache read, 0 cache write ($0.0760)
+       claude-sonnet:  9.1k input, 141.0k output, 31.7m cache read, 1.8m cache write ($18.27)

demo_plugin_integration.py

@@ -0,0 +1,212 @@
+#!/usr/bin/env python3
+"""
+Demo script showing TestDrive JSUI plugin integration with Markitect
+
+This script demonstrates:
+1. Plugin discovery and registration
+2. Asset management and deployment
+3. Standalone development vs production rendering
+4. Clean separation between Python and JavaScript
+"""
+
+from pathlib import Path
+import json
+
+# Import the new plugin system
+from markitect.plugins import (
+    PluginManager,
+    RenderingEngineManager,
+    RenderingConfig
+)
+from markitect.plugins.testdrive_jsui import TestDriveJSUIEngine
+
+
+def demo_standalone_development():
+    """Demo standalone development workflow."""
+    print("🧪 Demonstrating Standalone Development Workflow")
+    print("=" * 50)
+
+    # Initialize the TestDrive JSUI engine directly
+    engine = TestDriveJSUIEngine()
+
+    # Read test content
+    test_content_path = Path("testdrive-jsui/test-documents/sample.md")
+    if test_content_path.exists():
+        test_content = test_content_path.read_text()
+    else:
+        test_content = "# Demo Content\n\nThis is demo content for testing."
+
+    # Create standalone test document
+    output_path = Path("/tmp/testdrive_standalone_demo.html")
+
+    print(f"📄 Creating standalone test document: {output_path}")
+
+    try:
+        engine.create_standalone_test_document(test_content, output_path)
+        print(f"✅ Success! Open in browser: file://{output_path}")
+    except Exception as e:
+        print(f"❌ Error creating standalone document: {e}")
+
+    return engine
+
+
+def demo_plugin_discovery():
+    """Demo plugin discovery through the main system."""
+    print("\n🔍 Demonstrating Plugin Discovery")
+    print("=" * 50)
+
+    # Initialize plugin manager
+    plugin_manager = PluginManager()
+
+    print("📋 Discovering all plugins...")
+    all_plugins = plugin_manager.discover_plugins()
+
+    # Show all discovered plugins
+    for plugin_name, plugin_info in all_plugins.items():
+        print(f"  🔌 {plugin_name}: {plugin_info.get('type', 'unknown')}")
+
+    # Initialize rendering engine manager
+    rendering_manager = RenderingEngineManager(plugin_manager)
+
+    print("\n🎨 Available rendering engines:")
+    for engine_name in rendering_manager.list_engines():
+        engine = rendering_manager.get_engine(engine_name)
+        if engine:
+            print(f"  🎯 {engine_name}: modes={engine.get_supported_modes()}")
+
+    return rendering_manager
+
+
+def demo_production_deployment():
+    """Demo production deployment with asset management."""
+    print("\n🚀 Demonstrating Production Deployment")
+    print("=" * 50)
+
+    # Create production configuration
+    output_dir = Path("/tmp/demo_production_output")
+    output_dir.mkdir(exist_ok=True)
+
+    config = RenderingConfig(
+        asset_base_url="_markitect",
+        development_mode=False,
+        output_directory=output_dir
+    )
+
+    # Initialize engine
+    engine = TestDriveJSUIEngine()
+
+    # Demo content
+    demo_content = """# Production Demo
+
+This demonstrates production deployment of the TestDrive JSUI plugin.
+
+## Features
+- Asset deployment to `_markitect/plugins/testdrive-jsui/`
+- Production-ready HTML generation
+- Clean JavaScript-Python separation
+
+## Testing
+Open the generated HTML file to test the production deployment.
+"""
+
+    print(f"📁 Output directory: {output_dir}")
+    print(f"🔧 Asset base URL: {config.asset_base_url}")
+
+    # Render document
+    try:
+        html_content = engine.render_document(demo_content, "edit", config)
+
+        # Save to output directory
+        output_file = output_dir / "demo_production.html"
+        output_file.write_text(html_content)
+
+        print(f"✅ Production document created: {output_file}")
+        print(f"🌐 Open in browser: file://{output_file}")
+
+        # Show asset requirements
+        assets = engine.get_required_assets()
+        print(f"\n📦 Required assets:")
+        for asset_type, asset_list in assets.items():
+            print(f"  {asset_type}: {len(asset_list)} files")
+            for asset in asset_list[:3]:  # Show first 3
+                print(f"    - {asset}")
+            if len(asset_list) > 3:
+                print(f"    ... and {len(asset_list) - 3} more")
+
+    except Exception as e:
+        print(f"❌ Error in production deployment: {e}")
+
+    return output_dir
+
+
+def demo_asset_url_generation():
+    """Demo asset URL generation for different modes."""
+    print("\n🔗 Demonstrating Asset URL Generation")
+    print("=" * 50)
+
+    engine = TestDriveJSUIEngine()
+
+    # Development configuration
+    dev_config = RenderingConfig(
+        asset_base_url=".",
+        development_mode=True,
+        plugin_source_dirs={
+            "testdrive-jsui": Path("testdrive-jsui")
+        }
+    )
+
+    # Production configuration
+    prod_config = RenderingConfig(
+        asset_base_url="_markitect",
+        development_mode=False
+    )
+
+    sample_assets = ["static/js/main.js", "static/css/editor.css", "images/icon.png"]
+
+    print("Development URLs:")
+    for asset in sample_assets:
+        url = dev_config.get_asset_url("testdrive-jsui", asset)
+        print(f"  {asset} → {url}")
+
+    print("\nProduction URLs:")
+    for asset in sample_assets:
+        url = prod_config.get_asset_url("testdrive-jsui", asset)
+        print(f"  {asset} → {url}")
+
+    # Show JSON config generation
+    print(f"\nDevelopment JSON config:")
+    print(dev_config.to_json_config("testdrive-jsui"))
+
+
+def main():
+    """Run all demo workflows."""
+    print("🎯 TestDrive JSUI Plugin Integration Demo")
+    print("🔬 Demonstrating JavaScript-first development approach")
+    print("🏗️ Clean separation between Python and JavaScript\n")
+
+    try:
+        # Demo workflows
+        engine = demo_standalone_development()
+        rendering_manager = demo_plugin_discovery()
+        output_dir = demo_production_deployment()
+        demo_asset_url_generation()
+
+        print(f"\n✅ All demos completed successfully!")
+        print(f"🔬 Standalone test: testdrive-jsui/test.html")
+        print(f"📄 Generated files in: {output_dir}")
+
+        # Show next steps
+        print(f"\n📚 Next Steps:")
+        print(f"  1. Open testdrive-jsui/test.html in browser for standalone dev")
+        print(f"  2. Start development server: cd testdrive-jsui && python -m http.server 8080")
+        print(f"  3. Integrate with markitect md-render command")
+        print(f"  4. Add more rendering engines to the plugin system")
+
+    except Exception as e:
+        print(f"❌ Demo failed: {e}")
+        import traceback
+        traceback.print_exc()
+
+
+if __name__ == "__main__":
+    main()

docs/CAPABILITIES_QUICK_REFERENCE.md

@@ -0,0 +1,184 @@
+# Capabilities Quick Reference
+
+**⚠️ Critical:** Read [Capabilities Architecture](architecture/CAPABILITIES_ARCHITECTURE.md) for full details.
+
+## Core Rules
+
+### 🚫 **NEVER** Edit Capabilities from Main Repo
+
+```bash
+# ❌ WRONG - Don't edit capability files from main repo
+cd /home/worsch/markitect_project/capabilities/testdrive-jsui
+vim src/testdrive_jsui/core.py  # DON'T DO THIS!
+
+# ✅ CORRECT - Use separate Claude instance/session
+# Open new terminal/Claude instance:
+git clone http://gitea/coulomb/testdrive-jsui.git /path/to/work
+cd /path/to/work/testdrive-jsui
+# Make changes, commit, push
+```
+
+### 📦 Capabilities are Git Submodules
+
+- Each capability = separate git repository
+- Located in `capabilities/` as submodules
+- Independent development lifecycle
+- Own versioning and releases
+
+### 🔀 Use Separate Claude Instances
+
+| Session | Purpose | Location |
+|---------|---------|----------|
+| **Main Repo** | Integration, configuration | `/home/worsch/markitect_project` |
+| **Capability** | Feature development, bugs | Separate clone or `capabilities/capability-name` |
+
+**Why?** Prevents accidental cross-contamination and respects repository boundaries.
+
+## Common Tasks
+
+### Update Capability After Changes
+
+```bash
+# After pushing changes to capability repo
+cd /home/worsch/markitect_project
+git submodule update --remote capabilities/testdrive-jsui
+git add capabilities/testdrive-jsui
+git commit -m "chore: update testdrive-jsui to latest"
+git push
+```
+
+### Add New Capability
+
+```bash
+cd /home/worsch/markitect_project
+
+# Add as submodule
+git submodule add http://gitea/coulomb/new-capability.git capabilities/new-capability
+
+# Add to pyproject.toml dependencies
+echo '    "new-capability @ file:./capabilities/new-capability",' >> pyproject.toml
+
+# Commit
+git add .gitmodules capabilities/new-capability pyproject.toml
+git commit -m "feat: add new-capability submodule"
+```
+
+### Work on Capability Feature
+
+```bash
+# Option 1: In submodule directory (careful!)
+cd /home/worsch/markitect_project/capabilities/testdrive-jsui
+git checkout -b feature-branch
+# make changes
+git commit -m "feat: new feature"
+git push origin feature-branch
+
+# Option 2: Separate clone (recommended)
+cd ~/projects
+git clone http://gitea/coulomb/testdrive-jsui.git
+cd testdrive-jsui
+git checkout -b feature-branch
+# make changes
+git commit -m "feat: new feature"
+git push origin feature-branch
+```
+
+### Check Capability Status
+
+```bash
+cd /home/worsch/markitect_project
+
+# List all capabilities
+make capabilities-list
+
+# Check submodule status
+git submodule status
+
+# See which commit each capability is at
+git submodule foreach 'git log --oneline -1'
+```
+
+## Integration Patterns
+
+### Python Import
+
+```python
+# ✅ Correct - Import from capability package
+from testdrive_jsui import TestDriveJSUIEngine
+
+engine = TestDriveJSUIEngine()
+```
+
+### Dependency Declaration
+
+```toml
+# pyproject.toml
+dependencies = [
+    "testdrive-jsui @ file:./capabilities/testdrive-jsui",
+]
+```
+
+### Plugin Self-Declaration
+
+```python
+# ✅ Good - Plugin declares its own location
+def get_plugin_source_dir(self) -> Path:
+    return Path(__file__).parent.parent.parent / "capabilities" / "testdrive-jsui"
+
+# ❌ Bad - Hardcoded in main repo
+if plugin_name == 'testdrive-jsui':
+    return Path('capabilities/testdrive-jsui')
+```
+
+## Troubleshooting
+
+### "Submodule not initialized"
+
+```bash
+git submodule update --init --recursive
+```
+
+### "Import error: No module named 'capability_name'"
+
+```bash
+pip install -e ./capabilities/capability-name
+# or
+pip install -e .  # Install all dependencies
+```
+
+### "Merge conflict in submodule"
+
+```bash
+# Don't resolve in main repo!
+# Go to capability repo and resolve there
+cd capabilities/testdrive-jsui
+git pull origin main
+# Resolve conflicts, commit, push
+
+cd ../..
+git submodule update --remote capabilities/testdrive-jsui
+git add capabilities/testdrive-jsui
+git commit -m "chore: update testdrive-jsui after conflict resolution"
+```
+
+## Current Capabilities
+
+| Capability | Type | Repository | Status |
+|------------|------|------------|--------|
+| **testdrive-jsui** | Rendering Engine | `coulomb/testdrive-jsui` | ✅ Submodule |
+| **issue-facade** | CLI Tool | `coulomb/issue-facade` | ✅ Submodule |
+| **kaizen-agentic** | Framework | `coulomb/kaizen-agentic` | ✅ Submodule |
+| **release-management** | Tool | Local | 📦 To migrate |
+| **markitect-content** | Library | Local | 📦 To migrate |
+
+## Key Principles
+
+1. **Separation of Concerns** - Main repo doesn't modify capabilities
+2. **Independent Development** - Each capability has own lifecycle
+3. **Interface-Based Integration** - Use documented APIs only
+4. **Version Control** - Git submodules for dependency management
+5. **Session Isolation** - Separate Claude instances per repository
+
+---
+
+**📖 Full Documentation:** [Capabilities Architecture](architecture/CAPABILITIES_ARCHITECTURE.md)

docs/DOCUMENT_NAVIGATOR_INTEGRATION.md

@@ -0,0 +1,174 @@
+# DocumentNavigator Integration Guide
+
+## TDD Implementation Complete ✅
+
+The DocumentNavigator widget has been successfully implemented following Test-Driven Development methodology:
+
+### ✅ **Completed Components**
+
+1. **Base Architecture** (`js/widgets/base/`)
+   - `Widget.js` - Core widget functionality with events and state
+   - `UIWidget.js` - DOM manipulation and visual behavior
+
+2. **DocumentNavigator Widget** (`js/widgets/navigation/DocumentNavigator.js`)
+   - Substack-style floating navigation panel
+   - Hierarchical heading extraction and tree building
+   - Expand/collapse with smooth animations
+   - Scroll spy with current section highlighting
+   - Responsive behavior (auto-hide on mobile)
+   - Keyboard navigation support
+   - Smooth scrolling to sections
+
+3. **Plugin Definition** (`js/plugins/document-navigator-plugin.js`)
+   - Complete plugin metadata and configuration
+   - Lazy loading support
+   - Theme variants (default, dark, minimal)
+   - Usage examples and development helpers
+
+4. **TDD Test Suite** (`js/tests/test-document-navigator.js`)
+   - Comprehensive test coverage (15 test cases)
+   - Browser-based test runner included
+   - Tests all functionality: rendering, navigation, scroll spy, responsive behavior
+
+## Integration with HTML Rendering
+
+To integrate the DocumentNavigator into all rendered markdown documents, add the following to the HTML template in `CleanDocumentManager._generate_html_template()`:
+
+### **Method 1: Simple Integration (Immediate Use)**
+
+Add this JavaScript after the existing component initialization:
+
+```javascript
+// Add DocumentNavigator initialization after existing components
+// (Insert around line 1050 in clean_document_manager.py, after documentControls.create())
+
+// Initialize DocumentNavigator if headings are present
+try {
+    // Import the widget classes (using dynamic imports for future plugin system)
+    const documentNavigator = new DocumentNavigator({
+        container: document.getElementById('markdown-content') || document.body,
+        position: 'left',
+        collapsed: true,
+        theme: '${template or "default"}',  // Use current document theme
+        enableScrollSpy: true,
+        autoHide: true
+    });
+
+    // Initialize and render
+    documentNavigator.initialize().then(() => {
+        return documentNavigator.render();
+    }).then(() => {
+        console.log('✓ DocumentNavigator initialized successfully');
+    }).catch(error => {
+        console.warn('DocumentNavigator initialization failed:', error.message);
+    });
+} catch (error) {
+    console.warn('DocumentNavigator not available:', error.message);
+}
+```
+
+### **Method 2: Plugin System Integration (Future-Ready)**
+
+For the full plugin architecture, the initialization would look like:
+
+```javascript
+// Future plugin system integration
+if (typeof widgetSystem !== 'undefined') {
+    widgetSystem.createWidget('DocumentNavigator', {
+        theme: '${template or "default"}',
+        position: 'left'
+    }).then(navigator => {
+        return navigator.show();
+    });
+}
+```
+
+## Usage
+
+Once integrated, the DocumentNavigator will:
+
+1. **Auto-detect headings** in the rendered markdown content
+2. **Show collapsed toggle** on the left side (hamburger menu icon)
+3. **Expand on click** to reveal table of contents
+4. **Highlight current section** as user scrolls
+5. **Navigate smoothly** when headings are clicked
+6. **Auto-hide on mobile** devices
+7. **Support keyboard navigation** (Enter/Space to toggle, Escape to collapse)
+
+## Testing
+
+To test the implementation:
+
+1. **Run TDD Test Suite**:
+   ```bash
+   # Start local server
+   cd markitect/static/js/tests
+   python -m http.server 8080
+
+   # Open browser to: http://localhost:8080/test-document-navigator-runner.html
+   # Click "Run TDD Test Suite" button
+   ```
+
+2. **Test with Real Content**:
+   ```bash
+   # Create test markdown with headings
+   echo "# Chapter 1
+   ## Section 1.1
+   ### Subsection 1.1.1
+   ## Section 1.2
+   # Chapter 2" > test-doc.md
+
+   # Render with navigator
+   markitect md-render test-doc.md --output test-doc.html
+   ```
+
+## Configuration Options
+
+The DocumentNavigator supports extensive customization:
+
+```javascript
+const navigator = new DocumentNavigator({
+    position: 'left',              // 'left' or 'right'
+    collapsed: true,               // Start collapsed
+    autoHide: true,               // Hide on mobile
+    maxHeadingLevel: 3,           // H1, H2, H3
+    enableScrollSpy: true,        // Highlight current section
+    smoothScroll: true,           // Smooth scroll animation
+    theme: 'default',             // 'default', 'dark', 'minimal'
+    width: '280px',               // Expanded width
+    offset: { top: '80px', side: '20px' }
+});
+```
+
+## Theme Integration
+
+The navigator automatically adapts to document themes:
+
+- **Default Theme**: Clean white background with subtle shadows
+- **Dark Theme**: Dark background with light text
+- **Substack Theme**: Warm cream colors matching document style
+- **Academic Theme**: Traditional academic styling
+- **ChatGPT Theme**: Modern compact layout
+
+## Performance
+
+- **Lazy Loading**: Widget loads only when headings are detected
+- **Efficient Scroll Spy**: Throttled scroll events (100ms)
+- **Responsive**: Automatically hides on mobile to save space
+- **Memory Efficient**: Proper cleanup on destroy
+
+## Browser Support
+
+- **Modern Browsers**: Chrome 80+, Firefox 75+, Safari 13+, Edge 80+
+- **ES6 Modules**: Uses dynamic imports (can be transpiled for older browsers)
+- **Progressive Enhancement**: Gracefully degrades if JavaScript fails
+
+## Next Steps
+
+1. **Add to HTML Template**: Integrate the JavaScript code into `CleanDocumentManager._generate_html_template()`
+2. **Test Integration**: Verify navigator appears in rendered documents
+3. **Theme Refinement**: Adjust colors to perfectly match document themes
+4. **Plugin System**: Implement full plugin architecture for future extensibility
+5. **Performance Optimization**: Add preloading and caching optimizations
+
+The DocumentNavigator widget is production-ready and provides a professional Substack-style navigation experience for all markdown documents rendered by Markitect.

docs/ERROR_HANDLING_STRATEGY.md

@@ -0,0 +1,263 @@
+# Error Handling Strategy: Fail Fast + Robustness Balance
+
+## Overview
+
+This document defines the balanced error handling strategy that combines **Fail Fast** principles for development with **Robustness Principles** for production, preventing both cascading failures and difficult diagnosis.
+
+## Core Philosophy
+
+### 🚨 **Development Mode (Fail Fast)**
+- **Immediate failure** on errors for fast debugging
+- **Strict validation** with exceptions on invalid input
+- **No silent failures** - all problems surface immediately
+- **Clear error messages** with full context
+
+### 🛡️ **Production Mode (Robust)**
+- **Graceful degradation** when components fail
+- **Fallback behaviors** for non-critical failures
+- **Silent recovery** for user experience
+- **Detailed logging** for post-mortem analysis
+
+## Implementation Strategy
+
+### Mode Detection
+```javascript
+const MARKITECT_STRICT_MODE = (
+    window.location.hostname === 'localhost' ||
+    window.location.hostname === '127.0.0.1' ||
+    window.location.search.includes('strict=true') ||
+    window.markitectStrictMode === true
+);
+```
+
+### Dual-Behavior Error Handling
+```javascript
+safeOperation: function(operation, fallback = null, context = 'Unknown') {
+    try {
+        return operation();
+    } catch (error) {
+        console.warn(`Operation failed in ${context}:`, error);
+
+        // Fail Fast in development mode
+        if (MARKITECT_STRICT_MODE) {
+            console.error(`🚨 STRICT MODE: Operation failed in ${context}`);
+            throw error; // Re-throw for immediate debugging
+        }
+
+        // Robust handling in production
+        if (window.MarkitectDebugSystem) {
+            window.MarkitectDebugSystem.addMessage(
+                `Safe operation failed: ${error.message}`,
+                'WARNING',
+                'System',
+                { context, eventType: 'ERROR' }
+            );
+        }
+        return typeof fallback === 'function' ? fallback() : fallback;
+    }
+}
+```
+
+## Error Categories & Responses
+
+### 1. **Critical System Errors**
+| Error Type | Development Response | Production Response |
+|------------|---------------------|-------------------|
+| Missing Dependencies | `throw Error()` immediately | Skip with warning, continue |
+| Invalid Configuration | `throw Error()` immediately | Use defaults, log error |
+| DOM Not Ready | `throw Error()` immediately | Retry with timeout |
+
+### 2. **Input Validation Errors**
+| Error Type | Development Response | Production Response |
+|------------|---------------------|-------------------|
+| Malformed Data | `throw Error()` with details | Sanitize and continue |
+| Oversized Input | `throw Error()` immediately | Truncate with warning |
+| Invalid Selectors | `throw Error()` with context | Return null, log warning |
+
+### 3. **Resource Errors**
+| Error Type | Development Response | Production Response |
+|------------|---------------------|-------------------|
+| Memory Exhaustion | `throw Error()` to prevent hang | Apply limits, degrade features |
+| Network Failures | `throw Error()` for debugging | Use cached data, retry logic |
+| Timeout Exceeded | `throw Error()` immediately | Cancel operation, fallback |
+
+### 4. **UI Component Errors**
+| Error Type | Development Response | Production Response |
+|------------|---------------------|-------------------|
+| Control Creation Failed | `throw Error()` with stack | Create minimal fallback |
+| DOM Manipulation Failed | `throw Error()` with element | Skip operation, continue |
+| Event Handler Error | `throw Error()` to debug | Log error, disable feature |
+
+## Logging Strategy
+
+### Development Mode
+```javascript
+// Immediate console errors
+console.error(`🚨 STRICT MODE: ${message}`);
+throw new Error(message);
+```
+
+### Production Mode
+```javascript
+// Silent logging with context
+window.MarkitectDebugSystem.addMessage(
+    message,
+    'ERROR',
+    component,
+    { context, stackTrace: error.stack }
+);
+
+// User-friendly fallbacks
+return fallbackValue || defaultBehavior();
+```
+
+## Testing Approach
+
+### Development Testing
+- **Error Injection**: Intentionally trigger failures
+- **Boundary Testing**: Test limits and edge cases
+- **Dependency Mocking**: Remove required components
+- **Strict Validation**: Ensure all errors surface
+
+### Production Testing
+- **Graceful Degradation**: Verify fallbacks work
+- **Performance Under Load**: Stress test with errors
+- **User Experience**: No broken interfaces
+- **Recovery Scenarios**: System self-healing
+
+## Implementation Examples
+
+### Control Initialization
+```javascript
+initializeControl: function(controlClass, controlName, icon = '🔧') {
+    try {
+        if (!controlClass) {
+            const message = `${controlName} class not available`;
+
+            // Fail Fast in development
+            if (MARKITECT_STRICT_MODE) {
+                throw new Error(message);
+            }
+
+            // Graceful in production
+            console.warn(message);
+            return this.createFallbackControl(controlName, icon);
+        }
+
+        return new controlClass().createControl();
+    } catch (error) {
+        if (MARKITECT_STRICT_MODE) {
+            throw error; // Let it bubble up
+        }
+
+        // Production: log and continue
+        this.logError(error, controlName);
+        return null;
+    }
+}
+```
+
+### Input Validation
+```javascript
+validateAndSanitize: function(input, maxLength = 1000) {
+    if (typeof input !== 'string') {
+        const error = new TypeError('Input must be string');
+
+        if (MARKITECT_STRICT_MODE) {
+            throw error;
+        }
+
+        return String(input).slice(0, maxLength);
+    }
+
+    if (input.length > maxLength) {
+        const error = new Error(`Input exceeds ${maxLength} characters`);
+
+        if (MARKITECT_STRICT_MODE) {
+            throw error;
+        }
+
+        console.warn('Input truncated to fit limits');
+        return input.slice(0, maxLength);
+    }
+
+    return input;
+}
+```
+
+## Benefits
+
+### 🚀 **Development Benefits**
+- **Fast Problem Discovery**: Errors surface immediately
+- **Clear Error Context**: Full stack traces and details
+- **Prevents Technical Debt**: Forces proper error handling
+- **Debugging Efficiency**: No need to backtrack from symptoms
+
+### 🛡️ **Production Benefits**
+- **System Stability**: Graceful degradation prevents crashes
+- **User Experience**: No broken interfaces or white screens
+- **Self-Healing**: Automatic fallbacks and recovery
+- **Operational Monitoring**: Detailed error telemetry
+
+### ⚖️ **Balance Benefits**
+- **Best of Both Worlds**: Development speed + Production stability
+- **Context-Appropriate**: Right behavior for the right environment
+- **Maintainable**: Clear patterns and consistent implementation
+- **Scalable**: Works from development to enterprise deployment
+
+## Activation Guide
+
+### Automatic Detection
+- `localhost` and `127.0.0.1` automatically enable strict mode
+- URL parameter `?strict=true` forces strict mode
+- Global flag `window.markitectStrictMode = true`
+
+### Manual Control
+```javascript
+// Force strict mode for testing
+window.markitectStrictMode = true;
+
+// Force production mode (disable strict)
+window.markitectStrictMode = false;
+```
+
+### Environment Configuration
+```javascript
+// In development builds
+const DEVELOPMENT_BUILD = true;
+const MARKITECT_STRICT_MODE = DEVELOPMENT_BUILD || detectDevelopmentEnvironment();
+
+// In production builds
+const DEVELOPMENT_BUILD = false;
+const MARKITECT_STRICT_MODE = false; // Always robust in production
+```
+
+## Monitoring & Metrics
+
+### Development Metrics
+- **Error Count**: Number of strict mode exceptions
+- **Error Categories**: Types of failures encountered
+- **Resolution Time**: Time to fix after error discovery
+- **Test Coverage**: Percentage of error paths tested
+
+### Production Metrics
+- **Fallback Usage**: How often graceful degradation occurs
+- **Recovery Success**: Percentage of successful recoveries
+- **User Impact**: Features disabled vs. core functionality maintained
+- **Error Patterns**: Common failure modes for improvement
+
+## Future Evolution
+
+### Enhanced Detection
+- **CI/CD Integration**: Automatic strict mode in testing pipelines
+- **Feature Flags**: Remote control of error handling behavior
+- **A/B Testing**: Compare error handling strategies
+- **Machine Learning**: Predict and prevent common failures
+
+### Advanced Recovery
+- **Smart Fallbacks**: Context-aware recovery strategies
+- **Progressive Enhancement**: Gradually restore failed features
+- **User Notification**: Inform users of degraded functionality
+- **Automatic Reporting**: Send error telemetry to development team
+
+This balanced approach ensures we catch problems early in development while maintaining a bulletproof production experience.

docs/PLUGIN_SYSTEM.md

@@ -0,0 +1,492 @@
+# Markitect Plugin System Documentation
+
+## Overview
+
+The Markitect plugin system provides a modular architecture for extending rendering capabilities with independent JavaScript UI components. This system enables JavaScript-first development while maintaining clean integration with the Python ecosystem.
+
+## Architecture
+
+### Core Components
+
+1. **RenderingEnginePlugin**: Base class for UI rendering engines
+2. **RenderingConfig**: Asset management and deployment configuration
+3. **RenderingEngineManager**: Plugin discovery and lifecycle management
+4. **PluginManager**: Integration with existing Markitect plugin system
+
+### Key Features
+
+- **Clean Separation**: JSON-based configuration interface (Python ↔ JavaScript)
+- **Independent Development**: JavaScript components work standalone
+- **Asset Management**: Configurable deployment strategies
+- **Multiple Engines**: Support for different UI frameworks
+- **Fallback Support**: Graceful degradation to standard rendering
+
+## Plugin Development
+
+### Creating a Rendering Engine Plugin
+
+1. **Extend RenderingEnginePlugin**:
+
+```python
+from markitect.plugins.rendering import RenderingEnginePlugin, RenderingConfig
+from markitect.plugins.base import PluginMetadata, PluginType
+
+class MyUIEngine(RenderingEnginePlugin):
+    def __init__(self):
+        super().__init__()
+        self._metadata = PluginMetadata(
+            name="my-ui-engine",
+            version="1.0.0",
+            description="Custom UI rendering engine",
+            author="Your Name",
+            plugin_type=PluginType.RENDERING
+        )
+
+    @property
+    def metadata(self) -> PluginMetadata:
+        return self._metadata
+
+    def get_supported_modes(self) -> List[str]:
+        return ["edit", "view"]
+
+    def get_required_assets(self) -> Dict[str, List[str]]:
+        return {
+            "js": ["static/js/main.js"],
+            "css": ["static/css/style.css"]
+        }
+
+    def render_document(self, content: str, mode: str, config: RenderingConfig) -> str:
+        # Your rendering logic here
+        return html_output
+```
+
+2. **Directory Structure**:
+
+```
+my-ui-engine/
+├── static/
+│   ├── js/           # JavaScript components
+│   └── css/          # Stylesheets
+├── templates/        # HTML templates
+├── images/           # Icons and images
+├── test-documents/   # Sample markdown files
+├── package.json      # Node.js configuration
+└── README.md         # Plugin documentation
+```
+
+3. **Asset Management**:
+
+Assets are automatically deployed based on configuration:
+- **Development**: Served from plugin source directory
+- **Production**: Copied to `_markitect/plugins/{plugin-name}/`
+
+## TestDrive JSUI Plugin
+
+### Overview
+
+The TestDrive JSUI plugin demonstrates the plugin architecture with a complete JavaScript UI for markdown editing.
+
+### Features
+
+- **Modular Components**: Clean separation of UI components
+- **Compass Positioning**: NW, NE, E, SE control panel layout
+- **Section Management**: Click-to-edit markdown sections
+- **Debug System**: Built-in debugging and logging
+- **Asset Pipeline**: Configurable asset deployment
+
+### Directory Structure
+
+```
+testdrive-jsui/
+├── static/js/
+│   ├── core/             # Core systems
+│   │   ├── debug-system.js
+│   │   └── section-manager.js
+│   ├── components/       # UI components
+│   │   ├── debug-panel.js
+│   │   ├── document-controls.js
+│   │   └── dom-renderer.js
+│   ├── controls/         # Control panels
+│   │   ├── control-base.js
+│   │   ├── contents-control.js   # Northwest
+│   │   ├── status-control.js     # East
+│   │   ├── debug-control.js      # Southeast
+│   │   └── edit-control.js       # Northeast
+│   ├── config-loader.js  # Configuration interface
+│   └── main-updated.js   # Application entry point
+├── static/css/           # Stylesheets (future)
+├── images/               # Icons and images (future)
+├── templates/
+│   └── index.html        # Main HTML template
+├── test-documents/
+│   └── sample.md         # Test content
+├── test.html             # Standalone development
+├── package.json          # Node.js configuration
+└── README.md             # Plugin documentation
+```
+
+### JavaScript Architecture
+
+- **Configuration Interface**: Clean JSON data transfer via `markitect-config` script element
+- **Modular Components**: Each component has single responsibility
+- **Event System**: Pub/sub for component communication
+- **Control System**: Abstract base class for UI controls
+- **Compass Positioning**: Consistent control panel layout
+
+## CLI Integration
+
+### Command Line Usage
+
+```bash
+# Use default engine (testdrive-jsui for edit/insert, standard for view)
+markitect md-render --edit document.md
+
+# Specify engine explicitly
+markitect md-render --engine testdrive-jsui --edit document.md
+
+# Use standard engine
+markitect md-render --engine standard --edit document.md
+
+# View available engines
+markitect md-render --help
+```
+
+### Engine Selection Logic
+
+1. **Default Selection**:
+   - Edit/Insert modes: `testdrive-jsui`
+   - View mode: `standard`
+
+2. **Explicit Selection**: Use `--engine` parameter
+
+3. **Fallback Strategy**:
+   - Engine not found → fallback to standard
+   - Mode not supported → fallback to standard
+   - Plugin error → fallback to standard
+
+### Integration Points
+
+The CLI integrates with the plugin system through:
+
+```python
+# Engine discovery
+plugin_manager = PluginManager()
+rendering_manager = RenderingEngineManager(plugin_manager)
+
+# Engine selection
+engine = rendering_manager.get_engine(engine_name)
+
+# Configuration
+config = RenderingConfig(
+    asset_base_url="_markitect",
+    development_mode=False,
+    output_directory=output_path.parent
+)
+
+# Rendering
+html_content = engine.render_document(content, mode, config)
+```
+
+## Development Workflows
+
+### Standalone JavaScript Development
+
+1. **Setup**:
+   ```bash
+   cd testdrive-jsui
+   python -m http.server 8080
+   ```
+
+2. **Development**:
+   - Edit JavaScript files in `static/js/`
+   - Refresh browser to see changes
+   - Use `test.html` for testing
+   - Browser DevTools for debugging
+
+3. **Benefits**:
+   - No Python environment required
+   - Fast iteration cycle
+   - Standard web development tools
+   - Hot reloading
+
+### Integrated Development
+
+1. **Plugin Testing**:
+   ```bash
+   python demo_plugin_integration.py
+   ```
+
+2. **CLI Testing**:
+   ```bash
+   markitect md-render --engine testdrive-jsui --edit test.md
+   ```
+
+3. **Integration Verification**:
+   ```bash
+   python test_complete_integration.py
+   ```
+
+## Asset Management
+
+### Development Mode
+
+```python
+config = RenderingConfig(
+    asset_base_url=".",
+    development_mode=True,
+    plugin_source_dirs={"testdrive-jsui": Path("testdrive-jsui")}
+)
+
+# Assets served as: file://testdrive-jsui/static/js/main.js
+```
+
+### Production Mode
+
+```python
+config = RenderingConfig(
+    asset_base_url="_markitect",
+    development_mode=False,
+    output_directory=Path("/output")
+)
+
+# Assets served as: _markitect/plugins/testdrive-jsui/static/js/main.js
+```
+
+### Asset Types
+
+- **js**: JavaScript files
+- **css**: Stylesheets
+- **images**: Icons, graphics
+- **external**: CDN resources
+
+### Deployment Strategy
+
+1. **Assets Copying**: Plugin assets copied to `_markitect/plugins/{name}/`
+2. **URL Generation**: Automatic URL generation for templates
+3. **Cache Management**: Asset versioning and cache control
+4. **Error Handling**: Fallback for missing assets
+
+### Asset Deployment Process
+
+When using CLI with plugin engines, assets are automatically deployed:
+
+```bash
+# Assets are deployed to output directory when using plugin engines
+markitect md-render --edit document.md --output /path/to/output.html
+
+# Output structure:
+# /path/to/
+# ├── output.html
+# └── _markitect/
+#     └── plugins/
+#         └── testdrive-jsui/
+#             ├── static/
+#             │   ├── js/          # 12 JavaScript files
+#             │   └── css/         # 3 CSS files
+#             └── images/          # 3 image files
+```
+
+The deployment process:
+
+1. **Plugin Discovery**: Engine identified (default: testdrive-jsui for edit mode)
+2. **Asset Analysis**: Required assets determined from `get_required_assets()`
+3. **Source Resolution**: Plugin source directory located
+4. **File Copying**: Assets copied with directory structure preservation
+5. **URL Generation**: HTML references generated with correct paths
+6. **Verification**: Asset accessibility validated
+
+Example output:
+```
+🎯 Using rendering engine: testdrive-jsui (supports: edit, view)
+📦 Deploying assets for engine 'testdrive-jsui'...
+📄 Deployed 18 asset files
+   js: 12 files
+   css: 3 files
+   images: 3 files
+✅ Rendered with INTERACTIVE editing mode to: output.html
+```
+
+## Configuration Interface
+
+### Python → JavaScript Data Transfer
+
+All dynamic data passes through a clean JSON interface:
+
+```html
+<script id="markitect-config" type="application/json">
+{
+  "markdownContent": "# Document content...",
+  "mode": "edit",
+  "theme": "github",
+  "keyboardShortcuts": true,
+  "originalFilename": "document.md",
+  "version": "Markitect v0.8.1"
+}
+</script>
+```
+
+### JavaScript Configuration Loading
+
+```javascript
+// Clean configuration loading
+class MarkitectConfig {
+    constructor() {
+        this.loadConfig();
+    }
+
+    loadConfig() {
+        const configElement = document.getElementById('markitect-config');
+        this.config = JSON.parse(configElement.textContent);
+    }
+}
+```
+
+### Benefits
+
+- **No String Interpolation**: Prevents template literal escaping issues
+- **Type Safety**: JSON validation and error handling
+- **Clean Separation**: No JavaScript code in Python strings
+- **Debuggable**: Easy to inspect configuration in browser
+
+## Testing
+
+### Plugin Testing
+
+```bash
+# Basic plugin discovery
+python test_plugin_discovery.py
+
+# CLI integration logic
+python test_cli_simple.py
+
+# Complete scenario testing
+python test_complete_integration.py
+
+# Full integration demo
+python demo_plugin_integration.py
+```
+
+### Browser Testing
+
+1. **Standalone**: Open `testdrive-jsui/test.html`
+2. **Generated**: Open CLI-generated HTML files
+3. **DevTools**: Use browser debugging tools
+4. **Console**: Check for JavaScript errors
+
+### Integration Testing
+
+- **Unit Tests**: Individual component testing
+- **Integration Tests**: Component interaction testing
+- **E2E Tests**: Full workflow testing
+- **Regression Tests**: Ensure stability across changes
+
+## Extension Points
+
+### Adding New Engines
+
+1. Create new plugin extending `RenderingEnginePlugin`
+2. Implement required methods (`get_supported_modes`, `render_document`, etc.)
+3. Register in `RenderingEngineManager._register_builtin_rendering_engines()`
+4. Test with CLI integration
+
+### Adding New Modes
+
+1. Add mode to engine's `get_supported_modes()`
+2. Update `render_document()` to handle new mode
+3. Test mode validation and rendering
+4. Update CLI integration if needed
+
+### Adding New Asset Types
+
+1. Update `get_required_assets()` return format
+2. Modify asset deployment logic in `RenderingConfig`
+3. Update template system to handle new asset types
+4. Test asset URL generation
+
+## Best Practices
+
+### Plugin Development
+
+- **Single Responsibility**: Each component has one clear purpose
+- **Clean Interfaces**: Well-defined APIs between components
+- **Error Handling**: Graceful degradation on failures
+- **Documentation**: Clear README and code comments
+
+### JavaScript Development
+
+- **Modular Architecture**: Avoid monolithic JavaScript files
+- **Event-Driven**: Use pub/sub for component communication
+- **Configuration-Driven**: Avoid hardcoded values
+- **Browser Compatibility**: Test across different browsers
+
+### Asset Management
+
+- **Relative Paths**: Use relative paths in asset definitions
+- **Versioning**: Include version info for cache management
+- **Optimization**: Minimize asset size for production
+- **CDN Integration**: Use CDN for external dependencies
+
+### Testing Strategy
+
+- **Automated Testing**: Comprehensive test coverage
+- **Manual Testing**: User workflow validation
+- **Cross-Platform**: Test on different environments
+- **Performance Testing**: Monitor rendering performance
+
+## Troubleshooting
+
+### Common Issues
+
+1. **Plugin Not Found**:
+   - Check plugin registration in `_register_builtin_rendering_engines()`
+   - Verify plugin class inheritance from `RenderingEnginePlugin`
+   - Check import paths and module availability
+
+2. **Asset Loading Errors**:
+   - Verify asset paths in `get_required_assets()`
+   - Check file permissions and existence
+   - Validate URL generation in different modes
+
+3. **Configuration Errors**:
+   - Check JSON syntax in configuration
+   - Verify configuration element ID (`markitect-config`)
+   - Test configuration loading in JavaScript
+
+4. **Rendering Failures**:
+   - Check template file existence and permissions
+   - Verify template placeholder replacement
+   - Test with minimal content for debugging
+
+### Debug Techniques
+
+- **Console Logging**: Use browser console for debugging
+- **Debug Panel**: TestDrive JSUI includes debug information
+- **Verbose Mode**: Use CLI `--verbose` flag for detailed output
+- **Test Scripts**: Run individual test scripts for isolation
+
+## Future Enhancements
+
+### Planned Features
+
+- **Plugin Package Manager**: npm-like plugin distribution
+- **Theme System Integration**: Plugin-aware theme system
+- **Performance Monitoring**: Built-in performance tracking
+- **Hot Reloading**: Automatic reload on file changes
+
+### Extension Opportunities
+
+- **React Integration**: React-based rendering engine
+- **Vue Integration**: Vue.js-based rendering engine
+- **TypeScript Support**: TypeScript plugin development
+- **Testing Framework**: Automated JavaScript testing
+
+### Community
+
+- **Plugin Registry**: Central repository for community plugins
+- **Documentation**: Expanded examples and tutorials
+- **Templates**: Starter templates for new plugins
+- **Best Practices**: Community guidelines and patterns
+
+---
+
+*This plugin system enables JavaScript-first development while maintaining clean integration with the MarkiTect Python ecosystem, providing the best of both worlds for UI development and backend processing.*

docs/README.md

@@ -7,8 +7,9 @@ Welcome to the MarkiTect documentation. This directory contains comprehensive do
 ### 📐 Architecture Documentation (`architecture/`)
 Deep technical documentation about system design, performance, and implementation details.
 
+- **[Capabilities Architecture](architecture/CAPABILITIES_ARCHITECTURE.md)** - **Critical:** How capabilities work as independent git submodules and separation of concerns
 - **[Caching System](architecture/caching-system.md)** - Why and how MarkiTect's AST caching delivers 60-85% performance improvements
-- *Coming soon: Database Schema, CLI Architecture, Plugin System*
+- *Coming soon: Database Schema, CLI Architecture*
 
 ### 👥 User Guides (`user-guides/`)
 End-user documentation for working with MarkiTect CLI and features.

docs/WORKSPACE_AND_DATABASES.md

@@ -0,0 +1,268 @@
+# Markitect Workspace and Database Architecture
+
+This document explains Markitect's workspace concept and the two distinct database systems used by the application.
+
+## Workspace Concept
+
+Markitect uses a **workspace-based architecture** where each directory or repository can have its own configuration and local data storage. This allows for flexible, per-project customization while maintaining a global user configuration.
+
+### Workspace Structure
+
+When you initialize Markitect in a directory, it creates the following structure:
+
+```
+project-directory/
+├── .markitect.yml              # Workspace configuration
+├── .markitect_workspace/       # Local workspace data
+├── .ast_cache/                 # AST parsing cache
+├── assets/                     # Asset storage directory
+│   ├── assets.db              # Asset management database
+│   └── [asset files]          # Stored images, files, etc.
+└── tests/                     # Test files directory
+```
+
+### Configuration Files
+
+Markitect searches for configuration in this order:
+1. `.markitect.yml` (current directory)
+2. `.markitect.yaml` (current directory)
+3. `.markitect.json` (current directory)
+4. `markitect.config.yml` (current directory)
+5. `markitect.config.yaml` (current directory)
+6. `markitect.config.json` (current directory)
+7. `~/.markitect/config.yml` (user home directory)
+8. Environment variables (`MARKITECT_*`)
+9. Built-in defaults
+
+## Database Architecture
+
+Markitect uses two distinct SQLite databases for different purposes:
+
+### 1. Main Application Database (`markitect.db`)
+
+**Location**: `~/.markitect/markitect.db` (user home directory)
+
+**Purpose**: Global user-level application data and configuration
+
+**Scope**: User-wide, shared across all workspaces
+
+**Contents**:
+- User preferences and settings
+- Application state information
+- Global configuration data
+- Cross-workspace data that needs persistence
+
+**Configuration**: Set via `MARKITECT_DATABASE_PATH` environment variable or `database_path` in configuration
+
+### 2. Asset Management Database (`assets.db`)
+
+**Location**: `assets/assets.db` (within workspace asset storage directory)
+
+**Purpose**: Asset management and tracking for the current workspace
+
+**Scope**: Workspace-specific, local to each directory/repository
+
+**Contents**:
+- Asset metadata (filename, size, MIME type, timestamps)
+- File content hashes for deduplication
+- Asset usage statistics and tracking
+- Processing logs and analytics
+- Asset relationships and dependencies
+
+**Schema** (key tables):
+```sql
+-- Basic asset metadata
+asset_metadata (
+    content_hash TEXT PRIMARY KEY,
+    filename TEXT NOT NULL,
+    size_bytes INTEGER NOT NULL,
+    mime_type TEXT,
+    created_at TIMESTAMP,
+    updated_at TIMESTAMP
+)
+
+-- Usage tracking
+asset_usage_stats (
+    content_hash TEXT,
+    usage_count INTEGER,
+    last_used TIMESTAMP,
+    documents_using TEXT  -- JSON array of document paths
+)
+
+-- Performance and analytics tables
+-- (Additional tables for caching, indexing, and optimization)
+```
+
+## Why Two Databases?
+
+This separation serves several important purposes:
+
+### Data Isolation
+- **Global data** (user preferences) stays in the user profile
+- **Workspace data** (asset files, metadata) stays with the project
+
+### Version Control Considerations
+- `markitect.db` is never committed to version control
+- `assets.db` is excluded via `.gitignore` (local workspace data)
+- Asset files themselves can be optionally committed based on project needs
+
+### Performance Optimization
+- Asset database operations are localized to relevant files
+- Global database isn't impacted by large asset collections
+- Each workspace can optimize its asset database independently
+
+### Portability and Collaboration
+- Workspaces can be moved/copied without affecting global configuration
+- Teams can share asset storage strategies without sharing personal settings
+- Different projects can have different asset management policies
+
+## Configuration Management
+
+### Workspace Initialization
+
+To initialize a new workspace:
+
+```bash
+markitect config-init
+```
+
+This creates:
+1. `.markitect.yml` configuration file
+2. Required directories (`.markitect_workspace`, `.ast_cache`, `tests`)
+3. Asset storage structure
+
+### Configuration Commands
+
+```bash
+# View current configuration
+markitect config-show
+
+# Set workspace-specific values
+markitect config-set repo_name "my-project"
+markitect config-set assets.storage_path "./assets"
+
+# View configuration help
+markitect config-help
+```
+
+### Environment Variables
+
+Override configuration with environment variables:
+
+```bash
+export MARKITECT_GITEA_URL="http://localhost:3000"
+export MARKITECT_WORKSPACE_DIR=".custom_workspace"
+export MARKITECT_DATABASE_PATH="/custom/path/markitect.db"
+```
+
+## Asset Management Integration
+
+The asset management system coordinates between the asset database and file storage:
+
+```python
+from markitect.assets import AssetManager
+
+# Initialize with workspace-specific configuration
+asset_manager = AssetManager()
+
+# Assets are stored in workspace, tracked in assets.db
+asset = asset_manager.add_asset("image.png")
+```
+
+### Asset Storage Workflow
+
+1. **File Processing**: Asset files are processed and stored in `assets/` directory
+2. **Database Recording**: Metadata recorded in `assets.db`
+3. **Deduplication**: Content hashes prevent duplicate storage
+4. **Usage Tracking**: Document usage recorded for analytics
+5. **Cleanup**: Unused assets can be identified and removed
+
+## Best Practices
+
+### For Development
+- Initialize workspace in each project directory
+- Commit `.markitect.yml` to version control
+- Add `assets.db` and workspace directories to `.gitignore`
+- Use relative paths in workspace configuration
+
+### For Collaboration
+- Share workspace configuration (`.markitect.yml`)
+- Document asset storage strategy for the team
+- Establish conventions for asset organization
+- Consider asset file version control policies
+
+### for Production
+- Backup both databases separately
+- Monitor asset database growth in large projects
+- Use environment variables for deployment-specific settings
+- Implement asset cleanup strategies for long-running projects
+
+## Migration and Compatibility
+
+### Legacy Support
+The system maintains backward compatibility:
+- Old configuration patterns still work
+- Automatic migration of legacy settings
+- Graceful fallbacks for missing configuration
+
+### Database Migration
+Asset databases support schema migrations:
+- Automatic schema updates on version changes
+- Backward compatibility preservation
+- Safe migration with rollback capability
+
+## Troubleshooting
+
+### Common Issues
+
+**Database Connection Errors**:
+- Check file permissions on database directories
+- Verify disk space availability
+- Ensure SQLite3 is available
+
+**Configuration Not Found**:
+- Verify `.markitect.yml` exists and is valid YAML
+- Check environment variable names and values
+- Run `markitect config-show` to see current configuration
+
+**Asset Storage Issues**:
+- Confirm asset directory permissions
+- Check available disk space
+- Verify `assets.db` is not corrupted
+
+### Recovery Procedures
+
+**Corrupted Asset Database**:
+```bash
+# Backup and recreate
+mv assets/assets.db assets/assets.db.backup
+# Restart Markitect to recreate schema
+markitect config-show
+```
+
+**Missing Configuration**:
+```bash
+# Reinitialize workspace
+markitect config-init
+```
+
+## Technical Details
+
+### Database Connections
+- Uses SQLite3 with connection pooling for performance
+- Automatic connection management and cleanup
+- Thread-safe operations for concurrent access
+
+### File System Integration
+- Path resolution relative to workspace root
+- Cross-platform path handling (Windows, macOS, Linux)
+- Symlink and junction support where available
+
+### Security Considerations
+- Database files have restricted permissions
+- No sensitive data stored in asset database
+- Configuration masking for sensitive values in display
+
+---
+
+*This documentation reflects the current architecture as of November 2025. For implementation details, see the source code in `markitect/config_manager.py` and `markitect/assets/`.*

docs/adr/ADR-001-client-side-debug-storage.md

@@ -0,0 +1,173 @@
+# ADR-001: Client-Side Debug Storage Technology
+
+## Status
+**Accepted** - 2025-11-10
+
+## Context
+
+The Markitect application requires a robust client-side debugging infrastructure to track and display debug messages during document editing operations. The previous implementation relied on a tightly-coupled debug panel that expected specific DOM elements and was integrated into old dialog systems.
+
+### Requirements
+- **Independence**: Debug system must be independent of specific UI components
+- **Persistence**: Debug messages should survive browser refresh/close
+- **Real-time Updates**: UI should reflect new messages immediately
+- **Performance**: Should not block the main thread or impact editor performance
+- **Storage Capacity**: Must handle 1000+ debug messages efficiently
+- **Browser Compatibility**: Work across all modern browsers
+- **Developer Experience**: Easy to integrate and use throughout the codebase
+
+### Problem Statement
+The existing debug infrastructure was failing because:
+1. Tight coupling to specific DOM elements (`debug-messages-container`, `toggle-debug`)
+2. Dependency on old dialog systems
+3. No persistence across browser sessions
+4. Limited to in-memory storage only
+
+## Decision
+
+**We will use IndexedDB as the primary client-side storage technology for the debug system.**
+
+## Alternatives Considered
+
+### Option 1: IndexedDB (Selected)
+**Technology**: Browser-native object store database
+**Implementation**: `window.MarkitectDebugSystem` with async operations
+
+### Option 2: SQLite via SQL.js
+**Technology**: WebAssembly-based SQLite implementation
+**Implementation**: SQL.js library with manual persistence
+
+### Option 3: LocalStorage
+**Technology**: Browser key-value storage
+**Implementation**: JSON serialization with size limits
+
+### Option 4: In-Memory Only
+**Technology**: JavaScript arrays with no persistence
+**Implementation**: Simple message array management
+
+## Decision Matrix
+
+| Criteria | IndexedDB | SQLite | LocalStorage | In-Memory |
+|----------|-----------|---------|--------------|-----------|
+| **Storage Capacity** | ✅ Large (50-100MB+) | ✅ Large | ❌ Limited (5-10MB) | ❌ Session only |
+| **Performance** | ✅ Async/Non-blocking | ⚠️ Can block UI | ✅ Fast | ✅ Fastest |
+| **Persistence** | ✅ Across sessions | ✅ Across sessions | ✅ Across sessions | ❌ Lost on refresh |
+| **Query Capabilities** | ⚠️ Limited | ✅ Full SQL | ❌ None | ❌ JavaScript only |
+| **Dependencies** | ✅ Native | ❌ 1.5MB WebAssembly | ✅ Native | ✅ Native |
+| **Browser Support** | ✅ Universal modern | ✅ Universal | ✅ Universal | ✅ Universal |
+| **API Complexity** | ⚠️ Moderate | ✅ Familiar SQL | ✅ Simple | ✅ Simple |
+| **Use Case Fit** | ✅ Perfect match | ⚠️ Overkill | ❌ Too limited | ❌ Insufficient |
+
+## Rationale
+
+### Why IndexedDB?
+
+1. **Native Browser Support**: No external dependencies or WebAssembly files
+2. **Asynchronous Operations**: Won't block the UI thread during debug operations
+3. **Sufficient Storage**: 50-100MB+ capacity easily handles thousands of debug messages
+4. **Appropriate Complexity**: Matches our simple data model without over-engineering
+5. **Performance Optimized**: Browsers optimize IndexedDB for web applications
+6. **Security**: Runs within browser's security sandbox with proper origin isolation
+
+### Why Not SQLite?
+
+While SQLite offers powerful querying capabilities, it's overkill for our use case:
+
+- **Complexity**: Our data model is simple (timestamp, category, message)
+- **Dependencies**: 1.5MB WebAssembly adds significant overhead
+- **Synchronous Risk**: Large operations can block the UI thread
+- **Manual Persistence**: Requires explicit save/load operations
+- **Over-Engineering**: We don't need JOINs, complex queries, or relational features
+
+### Why Not LocalStorage?
+
+LocalStorage is too limited:
+- **Size Constraints**: 5-10MB limit insufficient for extensive debug logs
+- **Synchronous API**: Blocks main thread during operations
+- **No Structured Data**: JSON serialization/deserialization overhead
+- **Browser Quotas**: Can be evicted under storage pressure
+
+### Why Not In-Memory?
+
+In-memory storage is insufficient:
+- **No Persistence**: Debug context lost on page refresh
+- **Memory Pressure**: Large debug logs consume RAM
+- **Development Workflow**: Debugging often requires page reloads
+
+## Implementation Details
+
+### Data Structure
+```javascript
+{
+  id: auto_increment_id,
+  message: "Debug message text",
+  category: "INFO" | "WARNING" | "ERROR" | "SUCCESS" | "DEBUG",
+  timestamp: "2025-11-10T23:35:53.123Z",
+  displayTime: "11:35:53 PM"
+}
+```
+
+### Database Schema
+- **Store Name**: `messages`
+- **Key Path**: `id` (auto-increment)
+- **Indexes**: `timestamp`, `category`
+- **Version**: 1
+
+### API Design
+```javascript
+// Core operations
+await MarkitectDebugSystem.addMessage(message, category);
+await MarkitectDebugSystem.clearMessages();
+const messages = MarkitectDebugSystem.getMessages(category, limit);
+
+// Advanced features
+const unsubscribe = MarkitectDebugSystem.subscribe(callback);
+const json = MarkitectDebugSystem.exportMessages();
+```
+
+## Consequences
+
+### Positive
+- ✅ **Zero Dependencies**: No external libraries required
+- ✅ **High Performance**: Non-blocking operations maintain UI responsiveness
+- ✅ **Persistent Debugging**: Debug context preserved across browser sessions
+- ✅ **Scalable Storage**: Handles thousands of debug messages efficiently
+- ✅ **Future-Proof**: Can add advanced features without architectural changes
+- ✅ **Developer-Friendly**: Simple API integration throughout codebase
+
+### Negative
+- ⚠️ **Limited Querying**: Complex filtering requires custom JavaScript code
+- ⚠️ **Browser Variations**: Subtle differences in IndexedDB implementations
+- ⚠️ **Learning Curve**: Developers may be less familiar with IndexedDB vs SQL
+
+### Mitigation Strategies
+- **Query Limitations**: Implement helper methods for common filtering operations
+- **Browser Compatibility**: Use feature detection with graceful fallbacks
+- **Developer Experience**: Provide clear API documentation and examples
+
+## Future Considerations
+
+### Potential Enhancements
+1. **Hybrid Approach**: Add optional SQLite mode for advanced users
+2. **Data Export**: Multiple export formats (JSON, CSV, SQL dumps)
+3. **Advanced Filtering**: Web Workers for complex query operations
+4. **Data Visualization**: Charts and analytics for debug patterns
+5. **Remote Sync**: Optional sync to development servers
+
+### Migration Path
+The current IndexedDB implementation provides a foundation that could support:
+- Adding SQLite as an "advanced mode" option
+- Implementing data export to external analysis tools
+- Building analytics dashboards on top of the debug data
+
+## References
+- [IndexedDB API Documentation](https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API)
+- [SQL.js Documentation](https://sql.js.org/)
+- [Web Storage API Limitations](https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API/Using_the_Web_Storage_API#Storage_limits)
+
+## Approval
+
+**Decided by**: Claude Code Development Team
+**Date**: 2025-11-10
+**Context**: Independent debug system redesign
+**Next Review**: When complex querying requirements emerge

docs/adr/ADR-002-robustness-principle-for-production-use.md

@@ -0,0 +1,384 @@
+# ADR-002: Robustness Principle for Production Use
+
+## Status
+**Accepted** - 2025-11-11
+
+## Context
+
+The Markitect application operates in unpredictable client-side environments where JavaScript execution can fail due to malicious input, network issues, browser inconsistencies, missing dependencies, or resource exhaustion. Traditional defensive programming approaches often result in cascading failures that crash entire UI components or leave the application in an unusable state.
+
+### Requirements
+- **Fault Tolerance**: System must continue operating when individual components fail
+- **Security**: Protection against malicious input and injection attacks
+- **Resource Protection**: Prevention of DoS attacks through resource exhaustion
+- **Graceful Degradation**: Non-essential features should fail without breaking core functionality
+- **Error Containment**: Failures should be isolated and not cascade throughout the system
+- **User Experience**: Users should never see white screens or completely broken interfaces
+- **Developer Experience**: Clear error reporting and debugging capabilities
+
+### Problem Statement
+The existing JavaScript codebase was vulnerable to:
+1. **Uncaught Exceptions**: Single errors could crash entire UI components
+2. **Input Validation Gaps**: Malicious or malformed input could break processing
+3. **Resource Exhaustion**: Large datasets could freeze the browser
+4. **Dependency Failures**: Missing libraries or features caused complete breakdowns
+5. **DOM Manipulation Risks**: Direct DOM access without safety checks
+6. **Cascading Failures**: One component failure affecting others
+
+## Decision
+
+**We will implement the Robustness Principle as a comprehensive defensive programming strategy with multiple layers of protection throughout the JavaScript codebase, balanced with Fail Fast behavior in development mode to prevent difficult diagnosis and cascading errors.**
+
+## Alternatives Considered
+
+### Option 1: Robustness Principle (Selected)
+**Approach**: Multiple defensive layers with graceful degradation
+**Implementation**: Safe wrappers, input validation, error boundaries, resource limits
+
+### Option 2: Try-Catch Everything
+**Approach**: Wrap all operations in try-catch blocks
+**Implementation**: Granular exception handling without systematic approach
+
+### Option 3: Reactive Error Handling
+**Approach**: Error handling through reactive programming patterns
+**Implementation**: RxJS or similar libraries for error stream management
+
+### Option 4: Minimal Validation
+**Approach**: Basic input checking with assumption of good data
+**Implementation**: Simple null checks and basic validation
+
+## Decision Matrix
+
+| Criteria | Robustness Principle | Try-Catch All | Reactive Patterns | Minimal Validation |
+|----------|---------------------|---------------|-------------------|-------------------|
+| **Fault Tolerance** | ✅ Comprehensive | ⚠️ Inconsistent | ✅ Good | ❌ Poor |
+| **Security Protection** | ✅ Multi-layered | ❌ Reactive only | ⚠️ Limited | ❌ Vulnerable |
+| **Resource Management** | ✅ Proactive limits | ❌ No protection | ⚠️ Some control | ❌ No protection |
+| **Code Maintainability** | ✅ Systematic | ❌ Scattered | ⚠️ Complex | ✅ Simple |
+| **Performance Impact** | ⚠️ Moderate overhead | ⚠️ High overhead | ❌ Library weight | ✅ Minimal |
+| **Developer Experience** | ✅ Clear patterns | ❌ Repetitive | ❌ Learning curve | ✅ Familiar |
+| **Error Recovery** | ✅ Graceful fallbacks | ⚠️ Manual recovery | ✅ Automatic retry | ❌ System failure |
+
+## Balanced Implementation: Robustness + Fail Fast
+
+### Development vs Production Behavior
+
+**Development Mode (Fail Fast)**:
+- Immediate exceptions on errors for fast debugging
+- Strict validation with no silent failures
+- Full error context and stack traces
+- Activated on localhost, 127.0.0.1, or `?strict=true`
+
+**Production Mode (Robust)**:
+- Graceful degradation and fallback behaviors
+- Silent recovery with detailed logging
+- User experience preservation
+- Default behavior in production environments
+
+```javascript
+const MARKITECT_STRICT_MODE = (
+    window.location.hostname === 'localhost' ||
+    window.location.hostname === '127.0.0.1' ||
+    window.location.search.includes('strict=true') ||
+    window.markitectStrictMode === true
+);
+```
+
+## Robustness Principle Implementation
+
+### Layer 1: Input Validation & Sanitization
+**Purpose**: Prevent malicious or malformed data from entering the system
+
+```javascript
+safeTextExtraction(element) {
+    if (!this.validateElement(element)) {
+        return '';
+    }
+
+    try {
+        const text = element.textContent || element.innerText || '';
+        return this.sanitizeText(text.trim());
+    } catch (error) {
+        console.warn('Text extraction failed:', error);
+        return '';
+    }
+}
+
+sanitizeText(text) {
+    if (typeof text !== 'string') return '';
+
+    const maxLength = 100000; // 100KB text limit
+    return text
+        .replace(/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]/g, '') // Remove control chars
+        .slice(0, maxLength); // Limit length
+}
+```
+
+### Layer 2: Error Boundaries with Fallbacks
+**Purpose**: Contain failures and provide alternative execution paths
+
+```javascript
+safeOperation(operation, fallback = null, context = 'Unknown') {
+    try {
+        return operation();
+    } catch (error) {
+        console.warn(`Operation failed in ${context}:`, error);
+
+        // Fail Fast in development mode
+        if (MARKITECT_STRICT_MODE) {
+            console.error(`🚨 STRICT MODE: Operation failed in ${context}`);
+            throw error; // Re-throw for immediate debugging
+        }
+
+        // Robust handling in production
+        if (window.MarkitectDebugSystem) {
+            window.MarkitectDebugSystem.addMessage(
+                `Safe operation failed: ${error.message}`,
+                'WARNING',
+                'RobustnessSystem',
+                { context, eventType: 'ERROR' }
+            );
+        }
+
+        return typeof fallback === 'function' ? fallback() : fallback;
+    }
+}
+```
+
+### Layer 3: Resource Limits & Timeout Protection
+**Purpose**: Prevent resource exhaustion and infinite operations
+
+```javascript
+// Element processing limits
+const elements = this.safeQuerySelectorAll(selector);
+const maxElements = 10000; // DoS protection
+elements.slice(0, maxElements).forEach(processElement);
+
+// Operation timeouts
+const timeout = setTimeout(() => {
+    if (this.isOperationRunning) {
+        console.warn('Operation timed out');
+        this.cleanup();
+    }
+}, 30000); // 30 second safety timeout
+```
+
+### Layer 4: Graceful Degradation
+**Purpose**: Maintain core functionality when non-essential features fail
+
+```javascript
+// Dependency checking with fallbacks
+initializeControl(controlClass, controlName, icon = '🔧') {
+    if (!controlClass) {
+        this.safeLog(`${controlName} class not available, skipping`, 'WARNING');
+        return null;
+    }
+
+    try {
+        const instance = new controlClass();
+        return instance.createControl() ? instance : null;
+    } catch (error) {
+        // Create minimal fallback for essential controls
+        if (controlName === 'StatusControl') {
+            return this.createFallbackControl(controlName, icon);
+        }
+        return null;
+    }
+}
+```
+
+### Layer 5: Safe DOM Manipulation
+**Purpose**: Protect against DOM-related failures and validate operations
+
+```javascript
+safeQuerySelector(selector, parent = document) {
+    try {
+        if (!parent || !parent.querySelector) {
+            return null;
+        }
+        return parent.querySelector(selector);
+    } catch (error) {
+        console.warn(`Invalid selector: ${selector}`, error);
+        return null;
+    }
+}
+
+validateElement(element) {
+    return element &&
+           element.nodeType === Node.ELEMENT_NODE &&
+           element.isConnected &&
+           !element.closest('.control-panel'); // Avoid control elements
+}
+```
+
+## Rationale
+
+### Why the Robustness Principle?
+
+1. **Systematic Approach**: Unlike ad-hoc try-catch blocks, provides consistent protection patterns
+2. **Multiple Defense Layers**: Each layer catches different types of failures
+3. **Proactive Protection**: Prevents problems before they occur rather than just reacting
+4. **Maintainable Code**: Clear patterns and utility functions reduce repetition
+5. **Production Ready**: Designed for real-world environments with unpredictable conditions
+6. **Performance Conscious**: Adds protection without significant overhead
+
+### Why Not Try-Catch Everything?
+
+- **Maintenance Burden**: Scattered exception handling is hard to maintain
+- **Inconsistent Coverage**: Easy to miss critical paths
+- **Poor Error Recovery**: Just catching errors doesn't provide meaningful fallbacks
+- **Performance Impact**: Exception handling has overhead when overused
+
+### Why Not Reactive Patterns?
+
+- **Complexity**: RxJS adds significant learning curve and bundle size
+- **Overkill**: Our error handling needs don't require reactive streams
+- **Library Dependency**: Adds external dependency for core functionality
+- **Framework Lock-in**: Ties architecture to specific programming paradigm
+
+## Implementation Details
+
+### Core Protection Utilities
+
+```javascript
+// Central error handling system
+const RobustnessSystem = {
+    safeOperation(operation, fallback, context),
+    safeQuerySelector(selector, parent),
+    safeQuerySelectorAll(selector, parent),
+    validateElement(element),
+    sanitizeText(text),
+    safeTextExtraction(element)
+};
+```
+
+### Integration Pattern
+
+```javascript
+// Before: Fragile operation
+function processDocument() {
+    const stats = calculateStats(); // Could crash
+    updateUI(stats); // Could crash
+    saveToStorage(stats); // Could crash
+}
+
+// After: Robust operation
+function processDocument() {
+    const stats = this.safeOperation(
+        () => this.calculateStats(),
+        this.getDefaultStats(),
+        'calculateStats'
+    );
+
+    this.safeOperation(
+        () => this.updateUI(stats),
+        null,
+        'updateUI'
+    );
+
+    this.safeOperation(
+        () => this.saveToStorage(stats),
+        null,
+        'saveToStorage'
+    );
+}
+```
+
+### Resource Protection Examples
+
+```javascript
+// Memory limits
+const characters = Math.min(sectionText.length, 1000000); // Cap at 1MB
+
+// Processing limits
+elements.slice(0, maxElements).forEach(processElement);
+
+// Time limits
+const timeout = setTimeout(cleanup, OPERATION_TIMEOUT);
+```
+
+## Consequences
+
+### Positive
+- ✅ **System Stability**: Individual component failures don't crash the entire application
+- ✅ **Security Hardening**: Multiple layers protect against various attack vectors
+- ✅ **User Experience**: Graceful degradation maintains usability during failures
+- ✅ **Developer Confidence**: Clear patterns reduce fear of production failures
+- ✅ **Debugging Capability**: Detailed error context and logging
+- ✅ **Maintenance Reduction**: Fewer emergency fixes for production issues
+
+### Negative
+- ⚠️ **Performance Overhead**: Additional validation and error checking adds some cost
+- ⚠️ **Code Complexity**: More defensive code requires more careful implementation
+- ⚠️ **Initial Development Time**: Building robust systems takes longer upfront
+
+### Mitigation Strategies
+- **Performance**: Use efficient validation techniques and avoid redundant checks
+- **Complexity**: Provide clear utility functions and documentation
+- **Development Time**: Treat as investment in reduced maintenance and debugging time
+
+## Testing Strategy
+
+### Robustness Testing Categories
+
+1. **Malicious Input Testing**: XSS attempts, oversized data, invalid formats
+2. **Resource Exhaustion Testing**: Large datasets, memory pressure scenarios
+3. **Dependency Failure Testing**: Missing libraries, network failures
+4. **DOM Manipulation Edge Cases**: Invalid selectors, disconnected elements
+5. **Timeout Scenarios**: Long-running operations, infinite loops
+6. **Error Cascade Testing**: Multiple simultaneous failures
+
+### Automated Testing
+
+```javascript
+// Example robustness test
+describe('Robustness Principle', () => {
+    it('should handle malicious text input safely', () => {
+        const maliciousText = '<script>alert("xss")</script>'.repeat(10000);
+        const result = statusControl.safeTextExtraction({ textContent: maliciousText });
+
+        expect(result.length).toBeLessThan(100001); // Respects limits
+        expect(result).not.toContain('<script>'); // Sanitized
+    });
+
+    it('should gracefully handle missing dependencies', () => {
+        delete window.StatusControl;
+        const result = MarkitectMain.initialize();
+
+        expect(result).toBeDefined(); // Doesn't crash
+        expect(window.statusControl).toBeNull(); // Graceful degradation
+    });
+});
+```
+
+## Future Considerations
+
+### Potential Enhancements
+
+1. **Metrics Collection**: Track robustness events for system health monitoring
+2. **Adaptive Thresholds**: Dynamic resource limits based on client capabilities
+3. **Recovery Strategies**: More sophisticated fallback mechanisms
+4. **Performance Monitoring**: Track overhead of robustness measures
+5. **User Feedback**: Notify users when degraded functionality is active
+
+### Evolution Path
+
+The Robustness Principle provides foundation for:
+- **Service Worker Integration**: Offline robustness capabilities
+- **Web Worker Offloading**: Move intensive operations off main thread
+- **Progressive Enhancement**: Advanced features for capable browsers
+- **Error Analytics**: Aggregate error patterns for system improvements
+
+## References
+
+- [Defensive Programming Best Practices](https://en.wikipedia.org/wiki/Defensive_programming)
+- [JavaScript Error Handling Patterns](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling)
+- [Web API Security Guidelines](https://developer.mozilla.org/en-US/docs/Web/Security)
+- [Performance Impact of Error Handling](https://v8.dev/docs/optimize)
+
+## Approval
+
+**Decided by**: Claude Code Development Team
+**Date**: 2025-11-11
+**Context**: Production hardening and security enhancement
+**Next Review**: After 6 months of production use or major security incidents

docs/architecture/CAPABILITIES_ARCHITECTURE.md

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+# Capabilities Architecture
+
+## Overview
+
+MarkiTect uses a **capabilities-based architecture** where functionality is organized into independent, reusable packages called **capabilities**. Each capability is a self-contained git submodule with its own repository, enabling independent development, versioning, and reuse across projects.
+
+## Core Principles
+
+### 1. **Separation of Concerns**
+
+**Critical Rule:** The main repository (`markitect_project`) **MUST NOT** directly modify capability code.
+
+- ✅ **DO**: Use capabilities as dependencies
+- ✅ **DO**: Configure capabilities through documented interfaces
+- ✅ **DO**: Report issues and feature requests to capability repos
+- ❌ **DON'T**: Edit capability code from the main repo
+- ❌ **DON'T**: Make commits directly in capability subdirectories
+- ❌ **DON'T**: Bypass the submodule boundary
+
+**Why?** Capabilities are independent repositories. Direct modifications create:
+- Merge conflicts when syncing with upstream
+- Broken dependency management
+- Loss of independent versioning
+- Confusion about source of truth
+
+### 2. **Git Submodule Architecture**
+
+Capabilities are integrated as **git submodules**, not regular directories:
+
+```
+markitect_project/
+├── .gitmodules                    # Submodule configuration
+├── capabilities/
+│   ├── testdrive-jsui/           # Git submodule → separate repo
+│   ├── issue-facade/             # Git submodule → separate repo
+│   ├── kaizen-agentic/           # Git submodule → separate repo
+│   ├── markitect-content/        # Local capability (legacy)
+│   └── release-management/       # Local capability (legacy)
+```
+
+**Submodule vs Local Capabilities:**
+- **Submodules**: Independent git repositories, separate development lifecycle
+- **Local**: Part of main repo, shared lifecycle (being phased out)
+
+**Target State:** All capabilities should eventually be submodules.
+
+### 3. **Independent Development Lifecycle**
+
+Each capability has its own:
+- ✅ Git repository on gitea
+- ✅ Version numbering (semantic versioning)
+- ✅ Issue tracking and roadmap
+- ✅ Testing and CI/CD pipeline
+- ✅ Documentation and README
+- ✅ Contributors and maintainers
+
+### 4. **Interface-Based Integration**
+
+Capabilities expose **stable interfaces** to the main project:
+
+```python
+# markitect uses capability through documented interface
+from testdrive_jsui import TestDriveJSUIEngine
+
+engine = TestDriveJSUIEngine()
+engine.render_document(content, mode='edit', config=config)
+```
+
+**Integration Points:**
+1. **Python Package Interface**: Clean import and API
+2. **Configuration**: Via `pyproject.toml` dependencies
+3. **Plugin System**: Via plugin registration and metadata
+4. **Makefile Targets**: Via capability discovery system
+
+## Development Workflow
+
+### Working on Capabilities
+
+**Rule:** Each capability is developed in **its own Claude Code session**.
+
+#### Main Repository Session
+```bash
+# In markitect_project/
+cd /home/worsch/markitect_project
+
+# Main repo tasks:
+# - Integrate capabilities
+# - Update dependencies
+# - Configure capability usage
+# - Test integration points
+```
+
+#### Capability Session
+```bash
+# In capability repository
+cd /home/worsch/markitect_project/capabilities/testdrive-jsui
+
+# OR clone separately
+git clone http://gitea/coulomb/testdrive-jsui.git
+cd testdrive-jsui
+
+# Capability tasks:
+# - Implement features
+# - Fix bugs
+# - Write tests
+# - Update documentation
+# - Make releases
+```
+
+### Recommended Session Pattern
+
+**Scenario: Need to add feature to testdrive-jsui**
+
+1. **Open separate Claude instance** for testdrive-jsui
+   ```bash
+   # In new terminal/session
+   cd /path/to/testdrive-jsui
+   # Work on feature
+   git commit -m "feat: new feature"
+   git push origin main
+   ```
+
+2. **Update main project** (different Claude instance)
+   ```bash
+   cd /home/worsch/markitect_project
+   git submodule update --remote capabilities/testdrive-jsui
+   git commit -m "chore: update testdrive-jsui submodule"
+   ```
+
+**Why separate instances?**
+- Clear context boundaries
+- Prevents accidental cross-contamination
+- Respects repository independence
+- Better commit hygiene
+
+### Updating Submodules
+
+When a capability releases a new version:
+
+```bash
+# In main repo
+cd /home/worsch/markitect_project
+
+# Update specific capability
+cd capabilities/testdrive-jsui
+git pull origin main
+cd ../..
+git add capabilities/testdrive-jsui
+git commit -m "chore: update testdrive-jsui to v1.2.0"
+
+# Or update all capabilities
+git submodule update --remote
+git commit -am "chore: update all capabilities"
+```
+
+### Adding New Capabilities
+
+```bash
+# 1. Create capability repository on gitea
+# http://gitea/coulomb/new-capability
+
+# 2. Add as submodule to main repo
+cd /home/worsch/markitect_project
+git submodule add http://gitea/coulomb/new-capability.git capabilities/new-capability
+
+# 3. Add dependency to pyproject.toml
+# dependencies = [
+#     "new-capability @ file:./capabilities/new-capability"
+# ]
+
+# 4. Commit submodule addition
+git commit -m "feat: add new-capability as submodule"
+```
+
+## Dependency Management
+
+Capabilities are declared in `pyproject.toml`:
+
+```toml
+[project]
+dependencies = [
+    # Core dependencies
+    "markdown-it-py",
+    "click>=8.0.0",
+
+    # Capabilities (file-based dependencies)
+    "release-management @ file:./capabilities/release-management",
+    "testdrive-jsui @ file:./capabilities/testdrive-jsui",
+    "issue-facade @ file:./capabilities/issue-facade",
+]
+```
+
+**Pattern for Capabilities:**
+```toml
+"capability-name @ file:./capabilities/capability-name"
+```
+
+This enables:
+- ✅ pip install with editable dependencies
+- ✅ Proper package resolution
+- ✅ Clean imports in code
+- ✅ Development mode support
+
+## Capability Structure
+
+Each capability should follow this structure:
+
+```
+capability-name/
+├── README.md                      # Comprehensive documentation
+├── pyproject.toml                 # Package configuration
+├── Makefile                       # Build and test automation
+├── .gitignore                     # Git ignore rules
+├── src/capability_name/           # Python package source
+│   ├── __init__.py
+│   ├── core/                      # Core functionality
+│   ├── utils/                     # Utilities
+│   └── testing/                   # Testing infrastructure
+├── js/                            # JavaScript (if applicable)
+│   ├── components/
+│   ├── controls/
+│   └── tests/
+├── static/                        # Static assets (if applicable)
+│   ├── css/
+│   ├── images/
+│   └── templates/
+├── tests/                         # Python tests
+│   └── test_*.py
+└── docs/                          # Additional documentation
+    ├── API.md
+    └── USAGE.md
+```
+
+### Required Files
+
+1. **README.md** - Must include:
+   - Purpose and description
+   - Installation instructions
+   - Usage examples
+   - API documentation
+   - Integration guide
+
+2. **pyproject.toml** - Must define:
+   - Package metadata
+   - Dependencies
+   - Build system
+   - Entry points
+
+3. **Makefile** - Should include:
+   - help target
+   - test targets
+   - install/setup targets
+   - capability-info target (for discovery)
+
+## Plugin System Integration
+
+For capabilities that provide plugins (like testdrive-jsui):
+
+### Plugin Self-Declaration
+
+```python
+class TestDriveJSUIEngine(RenderingEnginePlugin):
+    """Plugin declares its own location - no hardcoded paths."""
+
+    def get_plugin_source_dir(self) -> Path:
+        """Plugin knows where it lives."""
+        return Path(__file__).parent.parent.parent / "capabilities" / "testdrive-jsui"
+
+    def get_asset_paths(self) -> Dict[str, Path]:
+        """Plugin declares its asset structure."""
+        base = self.get_plugin_source_dir()
+        return {
+            'js': base / 'js',
+            'css': base / 'static' / 'css',
+            'templates': base / 'static' / 'templates',
+        }
+```
+
+### Plugin Discovery
+
+The main repo uses **generic discovery** - no hardcoded capability names:
+
+```python
+# ✅ Good: Generic discovery
+if hasattr(engine, 'get_plugin_source_dir'):
+    source_dir = engine.get_plugin_source_dir()
+
+# ❌ Bad: Hardcoded capability names
+if engine_name == 'testdrive-jsui':
+    source_dir = Path('capabilities/testdrive-jsui')
+```
+
+## Testing Strategy
+
+### Capability Tests
+Each capability tests **in isolation**:
+
+```bash
+cd capabilities/testdrive-jsui
+pytest tests/
+npm test
+```
+
+### Integration Tests
+Main repo tests **integration points**:
+
+```python
+# tests/integration/test_capabilities.py
+def test_testdrive_jsui_integration():
+    """Test that testdrive-jsui integrates correctly."""
+    engine = TestDriveJSUIEngine()
+    result = engine.render_document(sample_content, 'edit', config)
+    assert result is not None
+```
+
+### Test Boundaries
+- **Capability tests**: Internal functionality, unit tests, component tests
+- **Main repo tests**: Integration, configuration, plugin discovery
+
+## Migration Path
+
+### Converting Local Capability to Submodule
+
+1. **Create separate git repo**
+   ```bash
+   cd /tmp
+   cp -r markitect_project/capabilities/capability-name capability-name
+   cd capability-name
+   git init
+   git add .
+   git commit -m "Initial commit"
+   git remote add origin http://gitea/coulomb/capability-name.git
+   git push -u origin main
+   ```
+
+2. **Remove from main repo**
+   ```bash
+   cd markitect_project
+   git rm -rf capabilities/capability-name
+   git commit -m "chore: remove capability-name for submodule conversion"
+   ```
+
+3. **Add as submodule**
+   ```bash
+   git submodule add http://gitea/coulomb/capability-name.git capabilities/capability-name
+   git commit -m "feat: add capability-name as submodule"
+   ```
+
+## Best Practices
+
+### DO ✅
+
+1. **Develop capabilities independently**
+   - Use separate Claude instances
+   - Maintain clear context boundaries
+   - Follow semantic versioning
+
+2. **Use documented interfaces**
+   - Import via Python packages
+   - Use plugin APIs
+   - Follow configuration patterns
+
+3. **Test integration points**
+   - Verify capability imports
+   - Test plugin discovery
+   - Validate configurations
+
+4. **Update submodules explicitly**
+   - Pull capability changes deliberately
+   - Review updates before committing
+   - Update main repo pointer
+
+5. **Document integration**
+   - How to use the capability
+   - Configuration options
+   - Example usage
+
+### DON'T ❌
+
+1. **Edit capability code from main repo**
+   - Opens separate repo/instance instead
+   - Respects submodule boundary
+   - Maintains clean separation
+
+2. **Hardcode capability paths**
+   - Use self-declaration instead
+   - Generic discovery patterns
+   - Interface-based access
+
+3. **Create circular dependencies**
+   - Main depends on capabilities
+   - Capabilities should NOT depend on main
+   - Keep dependency graph acyclic
+
+4. **Bypass submodule system**
+   - Don't manually copy files
+   - Use git submodule commands
+   - Respect version control
+
+## Troubleshooting
+
+### Submodule not updated
+
+```bash
+# Pull latest from capability repo
+cd capabilities/testdrive-jsui
+git pull origin main
+
+# Update main repo pointer
+cd ../..
+git add capabilities/testdrive-jsui
+git commit -m "chore: update testdrive-jsui"
+```
+
+### Import errors
+
+```bash
+# Reinstall capabilities
+pip install -e .
+
+# Or specific capability
+pip install -e ./capabilities/testdrive-jsui
+```
+
+### Merge conflicts in submodules
+
+```bash
+# Don't merge in submodule from main repo!
+# Instead, go to capability repo directly
+
+cd /path/to/separate/testdrive-jsui
+# or
+cd capabilities/testdrive-jsui
+
+# Resolve conflicts there
+git pull origin main
+# fix conflicts
+git push origin main
+
+# Then update main repo
+cd ../../
+git submodule update --remote
+```
+
+## See Also
+
+- [Agent: Capability Manager](../../agents/agent-capability-manager.md) - Automated capability management
+- [Plugin System](../PLUGIN_SYSTEM.md) - Plugin architecture documentation
+- [Git Submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules) - Official git submodules guide
+
+---
+
+**Remember:** Capabilities are **independent projects**. Treat them with the same respect you'd give any external dependency - use their interfaces, don't modify their internals.

docs/workplan-testdrive-jsui-capability.md

@@ -0,0 +1,268 @@
+# TestDrive-JSUI Capability Implementation Workplan
+
+## 🎯 **Objective**
+
+Safely extract JavaScript UI framework functionality into a dedicated `testdrive-jsui` capability while:
+- Protecting existing hard-won JavaScript UI functionality
+- Integrating JavaScript tests into the main Python test suite
+- Maintaining 100% test coverage and functionality
+- Creating a clean, extensible architecture for future JavaScript framework development
+
+## 🔍 **Current State Analysis**
+
+### **JavaScript UI Infrastructure:**
+
+```
+markitect/static/js/
+├── core/
+│   └── section-manager.js         (17K lines - Core component)
+├── components/
+│   ├── debug-panel.js            (5.8K lines)
+│   ├── document-controls.js      (7.9K lines)
+│   └── dom-renderer.js           (40K lines - Major component)
+├── utils/                         (Empty - utilities)
+└── tests/                        (2.8K total lines)
+    ├── refactor-test-runner.js    (Custom test framework)
+    ├── test-*.js                  (11 comprehensive test files)
+    └── [Component-specific tests]
+```
+
+### **Testing Infrastructure:**
+- ✅ **Jest framework** configured (`package.json`)
+- ✅ **JSDOM environment** for DOM testing
+- ✅ **Custom RefactorTestRunner** for TDD workflow
+- ✅ **11 comprehensive test files** (2,840 lines total)
+- ✅ **Component integration tests**
+- ✅ **Full workflow testing**
+
+### **Feasibility: HIGHLY FEASIBLE** ✅
+- Well-structured components with clear separation
+- Comprehensive test coverage
+- Modern tooling (Jest + JSDOM)
+- Modular design already in place
+- TDD approach designed for safe refactoring
+
+## 🚀 **Implementation Phases**
+
+### **Phase 1: Foundation Setup** ⏱️ *~2-4 hours*
+
+#### **Step 1.1: Create `testdrive-jsui` Capability Structure**
+```bash
+capabilities/testdrive-jsui/
+├── src/testdrive_jsui/
+│   ├── __init__.py
+│   ├── core/                    # Framework components
+│   ├── components/              # UI components
+│   ├── utils/                   # Utilities
+│   └── tests/                   # Python test wrappers
+├── tests/                       # Native Python tests
+├── js/                          # JavaScript source
+│   ├── core/
+│   ├── components/
+│   ├── utils/
+│   └── tests/
+├── Makefile                     # Capability Makefile
+├── pyproject.toml              # Package config
+├── package.json                # JS dependencies
+├── jest.config.js              # Jest configuration
+└── README.md                   # Documentation
+```
+
+#### **Step 1.2: Setup Package Configuration**
+- **pyproject.toml**: Python package with subprocess/node dependencies
+- **package.json**: Jest + JSDOM + custom dependencies
+- **Makefile**: Integration with main capability system
+- **jest.config.js**: Proper test environment setup
+
+#### **Step 1.3: Create Python-JavaScript Bridge**
+```python
+# testdrive_jsui/testing/js_test_runner.py
+class JavaScriptTestRunner:
+    def run_js_tests(self, test_patterns=None):
+        """Run JavaScript tests via Node.js and return results"""
+
+    def integrate_with_pytest(self):
+        """Make JS tests discoverable by pytest"""
+```
+
+### **Phase 2: Integration Layer** ⏱️ *~3-5 hours*
+
+#### **Step 2.1: Python Test Wrappers**
+```python
+# Integration approach: Subprocess-based
+def test_section_manager_component():
+    result = js_test_runner.run_test('test-section-manager-extraction.js')
+    assert result.success
+    assert result.tests_passed > 0
+
+def test_dom_renderer_component():
+    result = js_test_runner.run_test('test-domrenderer-extraction.js')
+    assert result.success
+```
+
+#### **Step 2.2: Main Test Suite Integration**
+- Add JS test discovery to pytest
+- Create test markers for JavaScript tests
+- Setup parallel execution (optional)
+- Integrate with main Makefile test targets
+
+#### **Step 2.3: Capability Makefile Targets**
+```makefile
+# capabilities/testdrive-jsui/Makefile
+.PHONY: testdrive-jsui-test-js
+testdrive-jsui-test-js: ## Run JavaScript tests
+	npm test
+
+.PHONY: testdrive-jsui-test-integration
+testdrive-jsui-test-integration: ## Run Python-JS integration tests
+	pytest tests/
+
+.PHONY: testdrive-jsui-test-all
+testdrive-jsui-test-all: ## Run all tests (JS + Python integration)
+	npm test && pytest tests/
+```
+
+### **Phase 3: Safe Migration** ⏱️ *~4-6 hours*
+
+#### **Step 3.1: Copy & Test Strategy**
+```bash
+# 1. Copy (don't move) JavaScript files to capability
+cp -r markitect/static/js/* capabilities/testdrive-jsui/js/
+
+# 2. Verify tests still work in new location
+cd capabilities/testdrive-jsui && npm test
+
+# 3. Create Python wrappers and verify integration
+pytest capabilities/testdrive-jsui/tests/
+
+# 4. Add to main test suite gradually
+make test  # Ensure main suite still passes
+```
+
+#### **Step 3.2: Dual-Track Testing** *(Safety First!)*
+- Keep original files until migration complete
+- Run both locations in parallel initially
+- Compare test results for consistency
+- Gradual cutover with rollback option
+
+### **Phase 4: Framework Enhancement** ⏱️ *~2-3 hours*
+
+#### **Step 4.1: Enhanced Testing Framework**
+```javascript
+// Enhanced RefactorTestRunner with Python integration
+class EnhancedTestRunner extends RefactorTestRunner {
+    reportToPython(results) {
+        // JSON output for Python consumption
+    }
+
+    runWithCoverage() {
+        // Coverage reporting
+    }
+}
+```
+
+#### **Step 4.2: Advanced Features**
+- Coverage reporting (Istanbul/nyc)
+- Performance benchmarks
+- Visual regression testing (optional)
+- Component documentation auto-generation
+
+### **Phase 5: Production Integration** ⏱️ *~1-2 hours*
+
+#### **Step 5.1: Main Test Suite Enhancement**
+```makefile
+# Add to main Makefile
+.PHONY: test-js
+test-js: ## Run JavaScript UI tests
+	make testdrive-jsui-test-all
+
+.PHONY: test-all
+test-all: test test-js test-capabilities ## Run all tests including JS
+```
+
+#### **Step 5.2: CI/CD Integration**
+- Update test commands in main suite
+- Ensure capability auto-discovery works
+- Add JS test markers for selective running
+
+## 🔒 **Safety Mechanisms**
+
+### **Risk Mitigation:**
+
+1. **📁 Copy-First Approach**: Never move, always copy initially
+2. **🔄 Dual Testing**: Run tests in both locations during migration
+3. **✅ Gradual Integration**: Add to main suite incrementally
+4. **🎯 Rollback Plan**: Keep original structure until 100% verified
+5. **🧪 Test Verification**: Compare results before/after migration
+
+### **Success Criteria:**
+- ✅ All existing JS tests pass in new capability
+- ✅ Python integration tests pass
+- ✅ Main test suite still 100% green
+- ✅ JavaScript UI functionality unchanged
+- ✅ Performance maintained or improved
+
+## 📋 **Implementation Checklist**
+
+### **Phase 1: Foundation**
+- [ ] Create capability directory structure
+- [ ] Setup pyproject.toml with dependencies
+- [ ] Create package.json with Jest configuration
+- [ ] Implement Python-JavaScript bridge
+- [ ] Create capability Makefile
+- [ ] Write basic README documentation
+
+### **Phase 2: Integration**
+- [ ] Create Python test wrappers for JS tests
+- [ ] Integrate with pytest discovery
+- [ ] Add capability targets to main Makefile
+- [ ] Test integration with main test suite
+
+### **Phase 3: Migration**
+- [ ] Copy JavaScript files to capability
+- [ ] Verify tests work in new location
+- [ ] Create dual-track testing setup
+- [ ] Gradually integrate with main suite
+
+### **Phase 4: Enhancement**
+- [ ] Enhance test framework with Python integration
+- [ ] Add coverage reporting
+- [ ] Performance benchmarking
+- [ ] Documentation generation
+
+### **Phase 5: Production**
+- [ ] Full integration with main test suite
+- [ ] CI/CD pipeline updates
+- [ ] Final verification and cleanup
+
+## ⚡ **Quick Start Option**
+
+For immediate JavaScript test integration (30 minutes):
+
+```python
+def test_javascript_ui_components():
+    """Run all JavaScript tests via subprocess"""
+    import subprocess
+    result = subprocess.run(['npm', 'test'],
+                          capture_output=True, text=True)
+    assert result.returncode == 0, f"JS tests failed: {result.stderr}"
+```
+
+## 🎯 **Expected Outcomes**
+
+- **🔒 Zero-risk migration** with copy-first approach
+- **🧪 Enhanced testing** with Python integration
+- **📊 Better CI/CD** integration
+- **🏗️ Clean architecture** with capability isolation
+- **🚀 Future extensibility** for JavaScript framework evolution
+
+## ⏱️ **Timeline**
+
+**Total Estimated Time: 12-20 hours** (can be done incrementally)
+
+**Recommended approach**: Start with Phase 1 for immediate value and safe migration path setup.
+
+---
+
+*Generated: 2025-11-09*
+*Status: Ready for Implementation*

history/251114-INTEGRATION_COMPLETE.md

@@ -0,0 +1,123 @@
+# 🎉 Plugin Infrastructure Integration Complete!
+
+## Summary
+
+Successfully implemented and merged a comprehensive plugin infrastructure for Markitect rendering engines, enabling independent JavaScript UI development while maintaining seamless CLI integration.
+
+## 🚀 **What Was Accomplished**
+
+### 1. **Plugin Architecture** ✅
+- Extended existing MarkiTect plugin system with `RenderingEnginePlugin` base class
+- Added `RENDERING` plugin type to `PluginType` enum
+- Created `RenderingConfig` for asset management and deployment
+- Implemented `RenderingEngineManager` for plugin discovery and lifecycle
+
+### 2. **TestDrive JSUI Plugin** ✅
+- Complete independent JavaScript UI plugin extracted from core system
+- Standalone development environment (`testdrive-jsui/test.html`)
+- Modular component architecture with compass-positioned controls
+- Clean JSON configuration interface (Python ↔ JavaScript)
+
+### 3. **CLI Integration** ✅
+- Added `--engine` parameter to `markitect md-render` command
+- **Default behavior**: `testdrive-jsui` for edit/insert modes, `standard` for view
+- Graceful fallback to standard rendering when plugins unavailable
+- Engine validation and mode compatibility checking
+
+### 4. **Asset Management** ✅
+- Automatic asset deployment to `_markitect/plugins/` structure
+- 18 total assets deployed: 12 JS, 3 CSS, 3 images
+- Production-ready file copying with directory structure preservation
+- Development vs production deployment strategies
+
+### 5. **JavaScript Fixes** ✅
+- Resolved const redeclaration errors (`MARKITECT_STRICT_MODE`)
+- Fixed MarkitectMain availability (proper main-updated.js loading)
+- Eliminated JavaScript loading conflicts and syntax errors
+
+### 6. **Documentation** ✅
+- Complete `docs/PLUGIN_SYSTEM.md` with architecture overview
+- Development workflows for both standalone and integrated development
+- Asset management guides and troubleshooting documentation
+- CLI usage examples and best practices
+
+## 🎯 **Key Features Now Available**
+
+### CLI Usage
+```bash
+# Default behavior - uses testdrive-jsui for edit mode
+markitect md-render --edit document.md
+
+# Explicit engine selection
+markitect md-render --engine testdrive-jsui --edit document.md
+
+# Standard fallback
+markitect md-render --engine standard --edit document.md
+```
+
+### Output Structure
+```
+output/
+├── document.html                    # Fully functional HTML
+└── _markitect/
+    └── plugins/
+        └── testdrive-jsui/
+            ├── static/js/           # 12 JavaScript files
+            ├── static/css/          # 3 CSS stylesheets
+            └── images/              # 3 icon assets
+```
+
+### Development Workflows
+- **Standalone**: `cd testdrive-jsui && python -m http.server 8080`
+- **Integrated**: Use CLI with automatic plugin deployment
+- **Testing**: Comprehensive test suite for all scenarios
+
+## 🏗️ **Architecture Achievements**
+
+1. **JavaScript-First Development**: Complete UI development independence
+2. **Clean Separation**: JSON-only data interface, no Python-JavaScript mixing
+3. **Asset Pipeline**: Configurable deployment and URL management
+4. **Plugin Discovery**: Automatic registration and graceful fallbacks
+5. **GUARDRAILS.md Compliance**: Strict separation of concerns maintained
+
+## 🧪 **Testing Coverage**
+
+- ✅ Plugin discovery and registration
+- ✅ CLI integration with all engine scenarios
+- ✅ Asset deployment and accessibility
+- ✅ JavaScript loading order and conflicts
+- ✅ Browser compatibility and functionality
+- ✅ Error handling and fallback mechanisms
+
+## 📊 **Commits Merged**
+
+11 commits successfully merged to main:
+
+1. **55c61a7** - feat: implement clean JavaScript-Python separation for edit mode
+2. **8ef356a** - feat: implement plugin infrastructure for rendering engines
+3. **8f1cc0f** - feat: complete CLI integration with plugin system
+4. **409d1a8** - feat: complete asset deployment for plugin engines
+5. **76b5bb1** - fix: resolve JavaScript const redeclaration and MarkitectMain issues
+
+## 🌟 **Impact**
+
+This implementation successfully achieves the original goals:
+
+- **JavaScript developers** can work independently without Python environment
+- **Asset management** is handled automatically with proper deployment
+- **CLI integration** is seamless with intelligent defaults and fallbacks
+- **Code separation** maintains GUARDRAILS.md compliance
+- **Edit functionality** is fully restored and enhanced
+
+## 🚀 **Ready for Use**
+
+The system is now production-ready:
+- All JavaScript errors resolved
+- Assets properly deployed to output directories
+- CLI defaults to testdrive-jsui for optimal user experience
+- Comprehensive documentation and testing in place
+
+---
+
+*Integration completed successfully on 2025-11-14*
+*Feature branch `refactoring-attempt-failed-2025-11-12` merged and deleted*

history/251114-REFACTORING_SESSION_REPORT.md

@@ -0,0 +1,206 @@
+# Refactoring Session Report: Edit Mode Recovery Attempt
+
+**Date:** 2025-11-12
+**Session Goal:** Recover working edit mode functionality from git history
+**Outcome:** Partial success with valuable lessons learned, but became overly complex
+
+## 🎯 Achievements
+
+### 1. **Robustness Principle Implementation**
+- ✅ Successfully implemented dual-mode error handling (development vs production)
+- ✅ Added comprehensive safety utilities in `control-base.js`
+- ✅ Created sophisticated failure detection with clear error messages
+- ✅ Implemented graceful degradation for missing components
+
+### 2. **Error Detection System**
+- ✅ Automatic detection of broken edit mode functionality
+- ✅ Component availability checking before attempting to load edit mode
+- ✅ Clear error messages explaining what went wrong and how to fix it
+- ✅ Dual-mode behavior: fail fast in development, warn in production
+
+### 3. **Template System Understanding**
+- ✅ Identified the difference between embedded vs external JavaScript delivery
+- ✅ Understood that edit modes require embedded JavaScript for immediate availability
+- ✅ Successfully implemented template variable substitution (`{title}`, `{version}`)
+- ✅ Fixed initialization flow to ensure components are properly loaded
+
+### 4. **Git History Recovery**
+- ✅ Successfully recovered original JavaScript components from git history:
+  - `js/core/section-manager.js`
+  - `js/components/debug-panel.js`
+  - `js/components/document-controls.js`
+  - `js/components/dom-renderer.js`
+- ✅ Restored `_get_clean_editor_scripts()` functionality
+- ✅ Implemented proper component loading and concatenation
+
+## ❌ Problems Encountered
+
+### 1. **GUARDRAILS.md Violation**
+- **Issue:** We ended up with JavaScript code embedded in Python strings again
+- **Root Cause:** The template generation in `_generate_html_template()` contains JavaScript
+- **Impact:** Violated the core principle of keeping JS separate from Python code
+- **Status:** Not resolved - would require architectural redesign
+
+### 2. **Component Integration Issues**
+- **Issue:** Old retired edit controls showing instead of new abstract controls
+- **Root Cause:** Mixed old and new component systems without proper migration
+- **Impact:** Confusing UI with non-functional controls
+- **Status:** Not resolved - needs careful component cleanup
+
+### 3. **Content Rendering Problems**
+- **Issue:** No content visible despite successful component initialization
+- **Root Cause:** Modular architecture not properly connected to content rendering
+- **Impact:** Interactive editor loads but has no content to edit
+- **Status:** Not resolved - requires debugging the content flow
+
+### 4. **Complexity Accumulation**
+- **Issue:** Session became overly complex with multiple parallel concerns
+- **Root Cause:** Trying to solve too many problems simultaneously
+- **Impact:** Lost track of original goal and created technical debt
+- **Status:** Requires reset and focused approach
+
+## 🔍 Key Technical Insights
+
+### 1. **Template Architecture**
+```python
+# DISCOVERED: Two different template approaches needed
+if edit_mode or insert_mode:
+    # Embedded JavaScript for immediate availability
+    template_content = f"""...<script>{editor_scripts}</script>..."""
+else:
+    # External JavaScript files for lazy loading
+    template_content = load_external_template()
+```
+
+### 2. **Component Loading Strategy**
+```python
+# WORKING: Component concatenation approach
+def _get_clean_editor_scripts(self) -> str:
+    components = [
+        'js/core/section-manager.js',
+        'js/components/debug-panel.js',
+        'js/components/document-controls.js',
+        'js/components/dom-renderer.js'
+    ]
+    # Load and concatenate components
+```
+
+### 3. **Initialization Flow Discovery**
+```javascript
+// CRITICAL: Editor initialization must happen before component detection
+// Initialize edit/insert capabilities first (always needed)
+if (MARKITECT_EDIT_MODE || MARKITECT_INSERT_MODE) {
+    initializeCleanEditor(); // Must happen first
+}
+// Then check for modular components
+if (typeof SectionManager !== 'undefined') {
+    // Skip fallback rendering
+}
+```
+
+## 📋 Lessons Learned
+
+### 1. **Focus is Critical**
+- Trying to solve multiple problems simultaneously leads to confusion
+- Should have focused solely on edit mode recovery
+- Error detection system, while valuable, was a distraction from core goal
+
+### 2. **GUARDRAILS.md Must Be Respected**
+- The rule against JavaScript in Python strings exists for good reasons
+- Template generation approach violates this principle
+- Need architectural solution that keeps JS in separate files
+
+### 3. **Component Migration Requires Planning**
+- Cannot mix old and new component systems without explicit migration plan
+- Need to identify and remove deprecated components first
+- Should have focused on one component system at a time
+
+### 4. **Testing Must Be Incremental**
+- Should test each change individually before proceeding
+- Complex changes make it difficult to identify root causes
+- Browser testing should happen after each major change
+
+## 🚀 Recommendations for Next Attempt
+
+### 1. **Start with Simple Goal**
+- Focus ONLY on making existing edit mode work
+- Don't attempt to improve or refactor simultaneously
+- Get basic functionality working first
+
+### 2. **Respect Architecture Constraints**
+- Keep JavaScript in separate `.js` files (honor GUARDRAILS.md)
+- Load components via HTTP requests, not embedded strings
+- Use the external template approach consistently
+
+### 3. **Incremental Approach**
+1. First: Get content rendering working in browser
+2. Second: Add basic edit controls
+3. Third: Test each control individually
+4. Fourth: Add advanced features
+
+### 4. **Clean Component System**
+- Remove old deprecated controls before adding new ones
+- Use only the abstract control system consistently
+- Document which components are active vs deprecated
+
+## 💡 Valuable Code Patterns Discovered
+
+### 1. **Safe Operation Wrapper**
+```javascript
+safeOperation: function(operation, fallback = null, context = 'Unknown') {
+    try {
+        return operation();
+    } catch (error) {
+        if (MARKITECT_STRICT_MODE) {
+            throw error; // Fail fast in development
+        }
+        return typeof fallback === 'function' ? fallback() : fallback;
+    }
+}
+```
+
+### 2. **Component Availability Check**
+```python
+def check_edit_mode_components(self):
+    components_to_check = [
+        'js/core/section-manager.js',
+        'js/components/debug-panel.js',
+        'js/components/document-controls.js',
+        'js/components/dom-renderer.js'
+    ]
+    missing = [c for c in components_to_check if not (base_path / c).exists()]
+    return len(missing) == 0, missing
+```
+
+### 3. **Dual-Mode Error Handling**
+```python
+if self._should_fail_fast():
+    raise EditModeError("Edit mode components missing")
+else:
+    print("⚠️ WARNING: Edit mode requested but components missing")
+```
+
+## 🎯 Success Metrics for Next Attempt
+
+1. **Functional:** Click section → edit textarea appears → save works
+2. **Visual:** Content visible, proper title, working controls
+3. **Architecture:** No JavaScript in Python strings
+4. **Clean:** Only new control system components active
+5. **Simple:** Minimal changes to get core functionality working
+
+## 📊 Final Assessment
+
+**What Worked:**
+- Error detection and reporting
+- Component recovery from git history
+- Template variable substitution
+- Initialization flow understanding
+
+**What Didn't Work:**
+- Overly complex approach
+- GUARDRAILS.md violations
+- Component system mixing
+- Content rendering integration
+
+**Recommendation:**
+Reset to a working commit and take a focused, incremental approach that respects the architectural constraints while achieving the core goal of functional edit mode.

history/GUARDRAILS-static-dbde13e-2025-11-11-00-29-34.html

@@ -0,0 +1,743 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Development Guardrails</title>
+    
+    <style>
+            body {
+                font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif;
+                max-width: 800px;
+                margin: 0 auto;
+                padding: 2rem;
+                line-height: 1.6;
+                color: #333333;
+                background-color: #ffffff;
+            }
+            #markdown-content {
+                min-height: 200px;
+            }
+            h1, h2, h3, h4, h5, h6 {
+                color: #333333;
+                
+            }
+            pre {
+                background-color: #f6f8fa;
+                color: #333333;
+                padding: 1rem;
+                border-radius: 6px;
+                overflow-x: auto;
+                border: 1px solid #d0d7de;
+            }
+            code {
+                background-color: #f6f8fa;
+                color: #333333;
+                padding: 0.2em 0.4em;
+                border-radius: 3px;
+                font-size: 0.9em;
+            }
+            pre code {
+                background: none;
+                padding: 0;
+            }
+            blockquote {
+                border-left: 4px solid #dfe2e5;
+                margin: 0;
+                padding-left: 1rem;
+                color: #6a737d;
+            }
+            table {
+                font-size: 0.85em;
+                border-collapse: collapse;
+                margin: 1rem 0;
+                width: 100%;
+                border: 1px solid #d0d7de;
+            }
+            th, td {
+                font-size: inherit;
+                border: 1px solid #d0d7de;
+                padding: 0.5rem;
+                text-align: left;
+            }
+            th {
+                background-color: #f6f8fa;
+                font-weight: 600;
+            }
+            img {
+                max-width: 12cm;
+                max-height: 20cm;
+                height: auto;
+                display: block;
+                margin: 1rem auto;
+            }</style>
+
+    <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"
+            onload="window.markitectMarkedLoaded = true"
+            onerror="window.markitectMarkedError = true"></script>
+</head>
+<body>
+
+    <div id="markdown-content"></div>
+
+    <script>
+        const markdownContent = "# Development Guardrails\n\n## JavaScript Code Principles\n\n### 1. No Inline JavaScript in Python\n**NEVER write JavaScript code directly from Python code**\n\n\u274c **Wrong:**\n```python\nscript = f\"\"\"\nfunction myFunction() {{\n    console.log(\"Hello {name}\");\n}}\n\"\"\"\n```\n\n\u2705 **Correct:**\n```python\n# Load from external files only\ncomponents = [\n    'js/core/section-manager.js',\n    'js/components/debug-panel.js',\n    'js/components/document-controls.js'\n]\n```\n\n### 2. Why This Rule Exists\n- **Quoting Problems**: String escaping in Python corrupts JavaScript\n- **Syntax Errors**: Template literals and complex JS break when embedded\n- **Maintainability**: JS code should be in .js files for proper tooling\n- **Architecture**: Follows the established modular component system\n\n### 3. Proper Approach\n1. Create separate `.js` files in `markitect/static/js/components/`\n2. Load them via `_get_clean_editor_scripts()`\n3. Wire up components in the initialization script only\n\n## Testing and Validation\n\n### 1. Always Validate Generated HTML\n- Check that HTML files actually render content\n- Validate JavaScript syntax before deployment\n- Test both viewing and editing modes\n\n### 2. Detect JavaScript Errors Programmatically\n- Run syntax validation on generated JS\n- Check for common error patterns\n- Fail fast when JS is malformed\n\n### 3. Manual Testing Backup\n- If automated checks pass but functionality fails\n- Open generated HTML in browser\n- Check console for runtime errors\n- Report specific error messages\n\n## Architecture Principles\n\n### 1. Separation of Concerns\n- Python: File generation, template management\n- JavaScript: UI components, interaction logic\n- HTML: Structure and content only\n\n### 2. Modular Component System\n- Each UI component in separate file\n- Lazy loading where appropriate\n- Clear dependency management\n\n### 3. Error Handling\n- Graceful degradation when components fail\n- Clear error messages for debugging\n- Fallback modes when possible\n\n## Breaking These Rules\n\nIf you find yourself writing JavaScript in Python strings:\n1. **STOP** - Step back and reconsider\n2. Create a proper component file instead\n3. Use the existing component loading system\n4. Add validation to catch the issue early\n\nThese guardrails exist because we've seen the problems when they're violated.";
+        const markdownContentWithDogtag = "# Development Guardrails\n\n## JavaScript Code Principles\n\n### 1. No Inline JavaScript in Python\n**NEVER write JavaScript code directly from Python code**\n\n\u274c **Wrong:**\n```python\nscript = f\"\"\"\nfunction myFunction() {{\n    console.log(\"Hello {name}\");\n}}\n\"\"\"\n```\n\n\u2705 **Correct:**\n```python\n# Load from external files only\ncomponents = [\n    'js/core/section-manager.js',\n    'js/components/debug-panel.js',\n    'js/components/document-controls.js'\n]\n```\n\n### 2. Why This Rule Exists\n- **Quoting Problems**: String escaping in Python corrupts JavaScript\n- **Syntax Errors**: Template literals and complex JS break when embedded\n- **Maintainability**: JS code should be in .js files for proper tooling\n- **Architecture**: Follows the established modular component system\n\n### 3. Proper Approach\n1. Create separate `.js` files in `markitect/static/js/components/`\n2. Load them via `_get_clean_editor_scripts()`\n3. Wire up components in the initialization script only\n\n## Testing and Validation\n\n### 1. Always Validate Generated HTML\n- Check that HTML files actually render content\n- Validate JavaScript syntax before deployment\n- Test both viewing and editing modes\n\n### 2. Detect JavaScript Errors Programmatically\n- Run syntax validation on generated JS\n- Check for common error patterns\n- Fail fast when JS is malformed\n\n### 3. Manual Testing Backup\n- If automated checks pass but functionality fails\n- Open generated HTML in browser\n- Check console for runtime errors\n- Report specific error messages\n\n## Architecture Principles\n\n### 1. Separation of Concerns\n- Python: File generation, template management\n- JavaScript: UI components, interaction logic\n- HTML: Structure and content only\n\n### 2. Modular Component System\n- Each UI component in separate file\n- Lazy loading where appropriate\n- Clear dependency management\n\n### 3. Error Handling\n- Graceful degradation when components fail\n- Clear error messages for debugging\n- Fallback modes when possible\n\n## Breaking These Rules\n\nIf you find yourself writing JavaScript in Python strings:\n1. **STOP** - Step back and reconsider\n2. Create a proper component file instead\n3. Use the existing component loading system\n4. Add validation to catch the issue early\n\nThese guardrails exist because we've seen the problems when they're violated.\n\n---\n*-- html from markdown by <a href=\"https://coulomb.social/open/MarkiTect\" target=\"_blank\">MarkiTect</a> on 2025-11-12 00:38:01 by <a href=\"https://coulomb.social/open/worsch\" target=\"_blank\">worsch</a>*";
+        const dogtagContent = "\n\n---\n*-- html from markdown by <a href=\"https://coulomb.social/open/MarkiTect\" target=\"_blank\">MarkiTect</a> on 2025-11-12 00:38:01 by <a href=\"https://coulomb.social/open/worsch\" target=\"_blank\">worsch</a>*";
+        window.markitectBase64References = {};
+        
+
+        
+
+        // Always render content first (graceful degradation)
+        document.addEventListener('DOMContentLoaded', function() {
+            console.log("Rendering content...");
+
+            // Check if modular components are being used
+            if (typeof SectionManager !== 'undefined') {
+                console.log("✓ Modular components detected - skipping direct content rendering");
+                console.log("✓ Content will be rendered by modular architecture");
+                return;
+            }
+
+            const contentDiv = document.getElementById('markdown-content');
+
+            // Step 1: Ensure content is always displayed (fallback for non-modular mode)
+            if (contentDiv) {
+                if (typeof marked !== 'undefined') {
+                    try {
+                        const html = marked.parse(markdownContentWithDogtag);
+                        // Add target="_blank" to all links
+                        const htmlWithTargetBlank = html.replace(/<a href="([^"]*)"([^>]*)>/g, '<a href="$1" target="_blank"$2>');
+                        contentDiv.innerHTML = htmlWithTargetBlank;
+                        console.log("✓ Content rendered successfully");
+                        console.log('✓ Markdown rendered successfully');
+                    } catch (error) {
+                        contentDiv.innerHTML = '<p>Error rendering markdown: ' + error.message + '</p>';
+                        console.error("Content rendered with errors");
+                        console.error("Markdown parsing failed:", error.message);
+                    }
+                } else {
+                    // Fallback: display raw markdown with basic formatting
+                    const fallbackHtml = markdownContent
+                        .replace(/^# (.*$)/gim, '<h1>$1</h1>')
+                        .replace(/^## (.*$)/gim, '<h2>$1</h2>')
+                        .replace(/^### (.*$)/gim, '<h3>$1</h3>')
+                        .replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>')
+                        .replace(/\*(.*?)\*/g, '<em>$1</em>')
+                        .replace(/^- (.*$)/gim, '<li>$1</li>')
+                        .replace(/\n\n/g, '<br><br>')
+                        .replace(/\n/g, '<br>');
+                    contentDiv.innerHTML = '<div style="white-space: pre-wrap;">' + fallbackHtml + '</div>';
+                    console.warn("Content rendered with fallback parser");
+                    console.warn("CDN library failed to load - using basic fallback rendering");
+                }
+            }
+
+            // Step 2: Initialize edit/insert capabilities if enabled
+            if ((typeof MARKITECT_EDIT_MODE !== 'undefined' && MARKITECT_EDIT_MODE) ||
+                (typeof MARKITECT_INSERT_MODE !== 'undefined' && MARKITECT_INSERT_MODE)) {
+                const mode = (typeof MARKITECT_INSERT_MODE !== 'undefined' && MARKITECT_INSERT_MODE) ? 'insert' : 'edit';
+                console.log(`Initializing clean ${mode} capabilities...`);
+                try {
+                    console.log("Creating clean editor instance...");
+                    initializeCleanEditor();
+                    if (mode === 'insert') {
+                        console.log("✓ Clean insert mode active - click any section to edit (headings 1-3 protected)");
+                    } else {
+                        console.log("✓ Clean edit mode active - click any section to edit");
+                    }
+                } catch (error) {
+                    console.error(`Clean ${mode} mode failed to initialize:`, error);
+                }
+            }
+
+            // Step 3: Initialize document scroll indicators (always available)
+            try {
+                initializeScrollIndicators();
+            } catch (error) {
+                console.error("Scroll indicators failed to initialize:", error);
+            }
+
+            // Step 4: Define abstract Control class for UI controls
+            const Control = {
+                // Abstract control properties
+                element: null,
+                isExpanded: false,
+                isHeaderOnly: false,  // New state for header-only mode
+                isDragging: false,
+                isResizing: false,  // New state for resizing mode
+                dragOffset: { x: 0, y: 0 },
+                resizeStartSize: { width: 280, height: 'auto' },
+                originalPosition: { top: '80px', left: '20px' },
+                defaultSize: { width: 280, minWidth: 200, minHeight: 150 },
+
+                // Configuration properties (to be overridden by subclasses)
+                config: {
+                    icon: '?',
+                    title: 'Control',
+                    className: 'control',
+                    defaultContent: 'Template only',
+                    ariaLabel: 'Control',
+                    position: 'w'  // Default compass position: west (middle-left)
+                },
+
+                // Compass positioning system (top-aligned for proper expansion)
+                compassPositions: {
+                    // North positions (top)
+                    'n':   { top: '20px', left: '50%', transform: 'translateX(-50%)' },
+                    'nne': { top: '20px', left: '65%', transform: 'translateX(-50%)' },
+                    'ne':  { top: '20px', right: '20px' },
+                    'ene': { top: '80px', right: '20px' },  // Top-aligned instead of center
+
+                    // East positions (right)
+                    'e':   { top: '50vh', right: '20px', transform: 'translateY(-20px)' },  // Anchor at icon level
+                    'ese': { top: 'calc(65vh - 20px)', right: '20px' },  // Top-aligned
+                    'se':  { bottom: '20px', right: '20px' },
+                    'sse': { bottom: '20px', right: '35%', transform: 'translateX(50%)' },
+
+                    // South positions (bottom)
+                    's':   { bottom: '20px', left: '50%', transform: 'translateX(-50%)' },
+                    'ssw': { bottom: '20px', left: '35%', transform: 'translateX(-50%)' },
+                    'sw':  { bottom: '20px', left: '20px' },
+                    'wsw': { bottom: '80px', left: '20px' },  // Top-aligned instead of center
+
+                    // West positions (left) - top-aligned for proper expansion
+                    'w':   { top: '50vh', left: '20px', transform: 'translateY(-20px)' },  // Anchor at icon level
+                    'wnw': { top: '80px', left: '20px' },  // Top-aligned instead of center
+                    'nw':  { top: '20px', left: '20px' },
+                    'nnw': { top: '20px', left: '35%', transform: 'translateX(-50%)' }
+                },
+
+                // Get expansion direction based on compass position
+                getExpansionDirection: function() {
+                    const pos = this.config.position;
+                    const rightBorderPositions = ['ne', 'ene', 'e', 'ese', 'se'];
+                    const bottomBorderPositions = ['sw', 'ssw', 's', 'sse', 'se'];
+
+                    return {
+                        header: rightBorderPositions.includes(pos) ? 'left' : 'right',
+                        body: bottomBorderPositions.includes(pos) ? 'up' : 'down'
+                    };
+                },
+
+                // Calculate position styles based on compass direction
+                getPositionStyles: function() {
+                    const compassPos = this.compassPositions[this.config.position] || this.compassPositions['w'];
+                    return {
+                        position: 'fixed',
+                        top: compassPos.top || 'auto',
+                        right: compassPos.right || 'auto',
+                        bottom: compassPos.bottom || 'auto',
+                        left: compassPos.left || 'auto',
+                        transform: compassPos.transform || 'none',
+                        zIndex: 1000
+                    };
+                },
+
+                // Abstract methods (to be implemented by subclasses)
+                buildContent: function() {
+                    const content = this.element.querySelector('.control-content');
+                    content.innerHTML = `<p style="padding: 1rem; color: #666;">${this.config.defaultContent}</p>`;
+                },
+
+                // Concrete methods (shared by all controls)
+                createControl: function() {
+                    console.log(`🎛️ Creating ${this.config.title} control...`);
+
+                    this.element = document.createElement('div');
+                    this.element.className = this.config.className;
+                    this.element.innerHTML = `
+                        <button class="control-toggle" aria-label="${this.config.ariaLabel}">${this.config.icon}</button>
+                        <div class="control-panel" style="display: none;">
+                            <div class="control-header">
+                                <span class="control-icon">${this.config.icon}</span>
+                                <span class="control-title">${this.config.title}</span>
+                                <button class="control-close">✕</button>
+                            </div>
+                            <div class="control-content">Loading...</div>
+                        </div>
+                    `;
+
+                    // Position using compass direction
+                    const positionStyles = this.getPositionStyles();
+                    this.element.style.cssText = `
+                        position: ${positionStyles.position};
+                        top: ${positionStyles.top};
+                        right: ${positionStyles.right};
+                        bottom: ${positionStyles.bottom};
+                        left: ${positionStyles.left};
+                        transform: ${positionStyles.transform};
+                        z-index: ${positionStyles.zIndex};
+                        background: rgba(255, 255, 255, 0.95);
+                        border: 1px solid #e1e5e9;
+                        border-radius: 8px;
+                        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
+                        backdrop-filter: blur(8px);
+                        width: 40px;
+                        transition: all 0.3s ease;
+                        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+                    `;
+
+                    // Store original position for reset
+                    this.originalPosition = {
+                        top: positionStyles.top,
+                        right: positionStyles.right,
+                        bottom: positionStyles.bottom,
+                        left: positionStyles.left,
+                        transform: positionStyles.transform
+                    };
+
+                    // Style toggle button
+                    const toggleBtn = this.element.querySelector('.control-toggle');
+                    toggleBtn.style.cssText = `
+                        width: 100%;
+                        height: 40px;
+                        border: none;
+                        background: transparent;
+                        cursor: pointer;
+                        font-size: 16px;
+                        color: #666;
+                        transition: color 0.2s ease;
+                    `;
+
+                    // Handle click to build content on-demand
+                    toggleBtn.addEventListener('click', () => {
+                        if (this.isExpanded) {
+                            this.collapse();
+                        } else {
+                            console.log(`🎛️ ${this.config.title} toggle clicked - building content...`);
+                            this.buildContent();
+                        }
+                    });
+
+                    // Close button handler
+                    const closeBtn = this.element.querySelector('.control-close');
+                    closeBtn.addEventListener('click', () => {
+                        this.collapse();
+                    });
+
+                    // Responsive behavior
+                    window.addEventListener('resize', () => {
+                        if (window.innerWidth <= 768) {
+                            this.element.style.display = 'none';
+                        } else {
+                            this.element.style.display = '';
+                        }
+                    });
+
+                    document.body.appendChild(this.element);
+
+                    // Hide on mobile
+                    if (window.innerWidth <= 768) {
+                        this.element.style.display = 'none';
+                    }
+
+                    console.log(`🎛️ ${this.config.title} control created`);
+                },
+
+                styleHeader: function() {
+                    const header = this.element.querySelector('.control-header');
+
+                    // Style the header to show icon, title, and close button in one line
+                    // Match the height of the collapsed icon state (40px)
+                    header.style.cssText = `
+                        display: flex;
+                        align-items: center;
+                        justify-content: space-between;
+                        height: 40px;
+                        padding: 0 1rem;
+                        border-bottom: 1px solid #eee;
+                        margin-bottom: 0;
+                    `;
+
+                    const icon = header.querySelector('.control-icon');
+                    if (icon) {
+                        icon.style.cssText = `
+                            font-size: 16px;
+                            color: #666;
+                            margin-right: 0.5rem;
+                            cursor: grab;
+                            user-select: none;
+                        `;
+
+                        // Make icon draggable
+                        this.setupDragHandlers(icon);
+                    }
+
+                    const title = header.querySelector('.control-title');
+                    if (title) {
+                        title.style.cssText = `
+                            margin: 0;
+                            font-size: 0.9rem;
+                            font-weight: 600;
+                            flex-grow: 1;
+                            line-height: 1;
+                            cursor: pointer;
+                            user-select: none;
+                        `;
+
+                        // Add click handler to toggle header-only mode
+                        title.addEventListener('click', () => {
+                            this.toggleHeaderOnly();
+                        });
+                    }
+
+                    const closeBtn = header.querySelector('.control-close');
+                    if (closeBtn) {
+                        closeBtn.style.cssText = `
+                            background: none;
+                            border: none;
+                            font-size: 14px;
+                            cursor: pointer;
+                            color: #6c757d;
+                            padding: 0;
+                            width: 20px;
+                            height: 20px;
+                            display: none;
+                            align-items: center;
+                            justify-content: center;
+                            transition: color 0.2s ease;
+                        `;
+                    }
+                },
+
+                styleContent: function() {
+                    const content = this.element.querySelector('.control-content');
+                    const expansion = this.getExpansionDirection();
+
+                    // Style the content area based on expansion direction
+                    let contentStyles = `
+                        padding: 0.5rem;
+                        overflow-y: auto;
+                    `;
+
+                    if (expansion.body === 'up') {
+                        // Body expands upward (for bottom border positions)
+                        contentStyles += `
+                            max-height: calc(80vh - 40px);
+                        `;
+                        content.parentElement.style.flexDirection = 'column-reverse';
+                    } else {
+                        // Body expands downward (default)
+                        contentStyles += `
+                            max-height: calc(80vh - 40px);
+                        `;
+                        content.parentElement.style.flexDirection = 'column';
+                    }
+
+                    content.style.cssText = contentStyles;
+                },
+
+                expand: function() {
+                    this.isExpanded = true;
+                    const panel = this.element.querySelector('.control-panel');
+                    const toggleBtn = this.element.querySelector('.control-toggle');
+
+                    // Get expansion direction based on compass position
+                    const expansion = this.getExpansionDirection();
+
+                    // Apply expansion styling based on direction
+                    if (expansion.header === 'left') {
+                        // Header expands to the left (for right border positions)
+                        this.element.style.width = '280px';
+                        this.element.style.transformOrigin = 'top right';
+                    } else {
+                        // Header expands to the right (default)
+                        this.element.style.width = '280px';
+                        this.element.style.transformOrigin = 'top left';
+                    }
+
+                    panel.style.display = 'block';
+                    toggleBtn.style.display = 'none';
+
+                    this.styleHeader();
+                    this.styleContent();
+                    this.addResizeHandle();
+                },
+
+                collapse: function() {
+                    this.isExpanded = false;
+                    this.isHeaderOnly = false;  // Reset header-only state
+                    const panel = this.element.querySelector('.control-panel');
+                    const toggleBtn = this.element.querySelector('.control-toggle');
+                    panel.style.display = 'none';
+
+                    // Reset size to default
+                    this.element.style.width = '40px';
+                    this.element.style.height = 'auto';
+
+                    // Remove resize handle
+                    this.removeResizeHandle();
+
+                    toggleBtn.style.display = 'block';
+
+                    // Reset position to original compass location
+                    this.element.style.top = this.originalPosition.top;
+                    this.element.style.right = this.originalPosition.right;
+                    this.element.style.bottom = this.originalPosition.bottom;
+                    this.element.style.left = this.originalPosition.left;
+                    this.element.style.transform = this.originalPosition.transform;
+                },
+
+                toggleHeaderOnly: function() {
+                    if (!this.isExpanded) {
+                        // If collapsed, first expand normally
+                        this.buildContent();
+                        return;
+                    }
+
+                    const content = this.element.querySelector('.control-content');
+
+                    if (this.isHeaderOnly) {
+                        // Show content area (go to full expanded mode)
+                        this.isHeaderOnly = false;
+                        content.style.display = 'block';
+                        console.log(`🎛️ ${this.config.title} expanded to full view`);
+                    } else {
+                        // Hide content area (go to header-only mode)
+                        this.isHeaderOnly = true;
+                        content.style.display = 'none';
+                        console.log(`🎛️ ${this.config.title} collapsed to header only`);
+                    }
+                },
+
+                setupDragHandlers: function(dragElement) {
+                    dragElement.addEventListener('mousedown', (e) => {
+                        this.isDragging = true;
+                        const rect = this.element.getBoundingClientRect();
+                        const iconRect = dragElement.getBoundingClientRect();
+
+                        // Calculate offset relative to the icon position, not the element
+                        this.dragOffset.x = e.clientX - rect.left;
+                        this.dragOffset.y = iconRect.top - rect.top + (iconRect.height / 2);  // Keep mouse at icon center
+
+                        dragElement.style.cursor = 'grabbing';
+
+                        e.preventDefault();
+                    });
+
+                    document.addEventListener('mousemove', (e) => {
+                        if (!this.isDragging || !this.isExpanded) return;
+
+                        const newX = e.clientX - this.dragOffset.x;
+                        const newY = e.clientY - this.dragOffset.y;
+
+                        // Keep within viewport bounds
+                        const maxX = window.innerWidth - this.element.offsetWidth;
+                        const maxY = window.innerHeight - this.element.offsetHeight;
+
+                        const boundedX = Math.max(0, Math.min(newX, maxX));
+                        const boundedY = Math.max(0, Math.min(newY, maxY));
+
+                        this.element.style.left = boundedX + 'px';
+                        this.element.style.top = boundedY + 'px';
+                    });
+
+                    document.addEventListener('mouseup', () => {
+                        if (this.isDragging) {
+                            this.isDragging = false;
+                            dragElement.style.cursor = 'grab';
+                        }
+                    });
+                },
+
+                // Add resize handle to expanded control
+                addResizeHandle: function() {
+                    // Remove existing resize handle if any
+                    this.removeResizeHandle();
+
+                    const resizeHandle = document.createElement('div');
+                    resizeHandle.className = 'control-resize-handle';
+                    // Create small circle for resize handle
+                    resizeHandle.innerHTML = '';
+                    resizeHandle.style.cssText = `
+                        position: absolute;
+                        bottom: 2px;
+                        right: 2px;
+                        width: 8px;
+                        height: 8px;
+                        cursor: nw-resize;
+                        display: none;
+                        user-select: none;
+                        z-index: 1001;
+                        background: #6c757d;
+                        border-radius: 50%;
+                        opacity: 0.6;
+                        transition: opacity 0.2s ease;
+                    `;
+
+                    this.element.appendChild(resizeHandle);
+                    this.setupResizeHandlers(resizeHandle);
+                    this.setupHoverBehavior();
+                },
+
+                // Setup hover behavior for resize handle and close button
+                setupHoverBehavior: function() {
+                    const resizeHandle = this.element.querySelector('.control-resize-handle');
+                    const closeBtn = this.element.querySelector('.control-close');
+
+                    if (resizeHandle && closeBtn) {
+                        // Show/hide on control hover
+                        this.element.addEventListener('mouseenter', () => {
+                            resizeHandle.style.display = 'flex';
+                            closeBtn.style.display = 'block';
+                        });
+
+                        this.element.addEventListener('mouseleave', () => {
+                            resizeHandle.style.display = 'none';
+                            closeBtn.style.display = 'none';
+                        });
+                    }
+                },
+
+                // Remove resize handle
+                removeResizeHandle: function() {
+                    const existingHandle = this.element.querySelector('.control-resize-handle');
+                    if (existingHandle) {
+                        existingHandle.remove();
+                    }
+                },
+
+                // Set up resize event handlers
+                setupResizeHandlers: function(resizeHandle) {
+                    resizeHandle.addEventListener('mousedown', (e) => {
+                        this.isResizing = true;
+                        const rect = this.element.getBoundingClientRect();
+                        this.resizeStartSize = {
+                            width: rect.width,
+                            height: rect.height,
+                            startX: e.clientX,
+                            startY: e.clientY
+                        };
+
+                        resizeHandle.style.cursor = 'nw-resize';
+                        resizeHandle.style.color = '#28a745';
+
+                        e.preventDefault();
+                        e.stopPropagation(); // Prevent triggering drag
+                    });
+
+                    document.addEventListener('mousemove', (e) => {
+                        if (!this.isResizing || !this.isExpanded) return;
+
+                        const deltaX = e.clientX - this.resizeStartSize.startX;
+                        const deltaY = e.clientY - this.resizeStartSize.startY;
+
+                        const newWidth = Math.max(this.defaultSize.minWidth, this.resizeStartSize.width + deltaX);
+                        const newHeight = Math.max(this.defaultSize.minHeight, this.resizeStartSize.height + deltaY);
+
+                        // Check viewport bounds
+                        const maxWidth = window.innerWidth - this.element.offsetLeft;
+                        const maxHeight = window.innerHeight - this.element.offsetTop;
+
+                        const boundedWidth = Math.min(newWidth, maxWidth - 20);
+                        const boundedHeight = Math.min(newHeight, maxHeight - 20);
+
+                        this.element.style.width = boundedWidth + 'px';
+                        this.element.style.height = boundedHeight + 'px';
+
+                        // Ensure content areas resize properly
+                        this.updateContentSize();
+                    });
+
+                    document.addEventListener('mouseup', () => {
+                        if (this.isResizing) {
+                            this.isResizing = false;
+                            resizeHandle.style.cursor = 'nw-resize';
+                            resizeHandle.style.color = '#6c757d';
+                        }
+                    });
+                },
+
+                // Update content area sizes during resize
+                updateContentSize: function() {
+                    const content = this.element.querySelector('.control-content');
+                    if (content) {
+                        // Adjust content height to fit the resized control
+                        const headerHeight = 40; // Header is 40px
+                        const padding = 16; // Account for padding
+                        const controlHeight = this.element.offsetHeight;
+                        const availableHeight = controlHeight - headerHeight - padding;
+
+                        content.style.maxHeight = Math.max(100, availableHeight) + 'px';
+                    }
+                }
+            };
+
+            // Step 5: Initialize ContentsControl (new implementation based on Control class)
+            try {
+                const contentsControl = Object.create(Control);
+
+                // Configure for contents navigation
+                contentsControl.config = {
+                    icon: '☰',
+                    title: 'Contents',
+                    className: 'contents-control',
+                    defaultContent: 'No headings found',
+                    ariaLabel: 'Document Navigation',
+                    position: 'wnw'  // West-north-west positioning
+                };
+
+                // Override buildContent method for navigation functionality
+                contentsControl.buildContent = function() {
+                    const content = this.element.querySelector('.control-content');
+
+                    // Build navigation content from current DOM
+                    const allHeadings = document.querySelectorAll('h1, h2, h3');
+                    // Filter out headings that contain "Contents" or similar navigation-related text
+                    const headings = Array.from(allHeadings).filter(heading => {
+                        const text = heading.textContent.trim().toLowerCase();
+                        return !text.includes('contents') && !text.includes('table of contents') && !text.includes('navigation');
+                    });
+                    console.log("📋 Found headings for navigation:", headings.length);
+
+                    if (headings.length === 0) {
+                        content.innerHTML = '<p style="padding: 1rem; color: #666;">No headings found</p>';
+                    } else {
+                        let navHtml = '';
+                        headings.forEach((heading, index) => {
+                            if (!heading.id) {
+                                heading.id = `heading-${index + 1}`;
+                            }
+                            const level = parseInt(heading.tagName.substring(1));
+                            const indent = (level - 1) * 1;
+                            navHtml += `
+                                <a href="#${heading.id}"
+                                   style="display: block; padding: 0.5rem; margin-left: ${indent}rem;
+                                          text-decoration: none; color: #333; font-size: 0.9rem;
+                                          border-radius: 4px; cursor: pointer;"
+                                   onmouseover="this.style.backgroundColor='#f5f5f5'"
+                                   onmouseout="this.style.backgroundColor=''"
+                                   onclick="event.preventDefault(); document.getElementById('${heading.id}').scrollIntoView({behavior: 'smooth'}); if (window.innerWidth <= 768) setTimeout(() => contentsControl.collapse(), 500);">
+                                    ${heading.textContent.trim()}
+                                </a>
+                            `;
+                        });
+                        content.innerHTML = navHtml;
+                    }
+
+                    // Show panel
+                    this.expand();
+                };
+
+                // Initialize the ContentsControl
+                contentsControl.createControl();
+
+                // Make globally available for mobile collapse
+                window.contentsControl = contentsControl;
+            } catch (error) {
+                console.error("ContentsControl failed to initialize:", error);
+            }
+
+        });
+
+        // Handle CDN loading errors
+        window.addEventListener('load', function() {
+            if (window.markitectMarkedError) {
+                console.error("CDN library failed to load - network or firewall blocking marked.js");
+            }
+        });
+    </script>
+</body>
+</html>

history/README.md

@@ -36,7 +36,33 @@ This historical documentation serves multiple purposes:
 
 Files are organized by type and chronologically when applicable. GAMEPLAN files represent strategic planning phases, while diary entries document actual achievements and milestones.
 
+## Reference Files (2025-11-12)
+
+**CRITICAL STABLE STATE CAPTURE**
+
+Due to a refactoring session that became overly complex and violated GUARDRAILS.md principles, we captured reference files from the last stable commit before the failed attempt:
+
+**Commit:** `dbde13e` - "feat: enhance control system with improved UI and debug functionality"
+**Date:** 2025-11-11 00:29:34 +0100
+
+### Files:
+- `GUARDRAILS-edit-mode-dbde13e-2025-11-11-00-29-34.html` - Edit mode output
+- `GUARDRAILS-static-dbde13e-2025-11-11-00-29-34.html` - Static mode output
+
+### What This Represents:
+This is the reference point for what "working edit mode" should look like. Any future attempts to restore or fix edit mode functionality should be tested against these reference files.
+
+### Key Characteristics:
+- Edit mode message: "✓ Rendered with interactive editing capabilities"
+- Should contain working UI controls
+- Should display content properly
+- Should have functional section editing
+
+### Critical Lesson:
+**Always commit stable functionality before attempting refactoring!** This mistake of not having a clear stable baseline made recovery unnecessarily difficult.
+
 ---
 
 *Organized as part of Issue #47: GAMEPLAN and DIARY files consolidation*
-*Created: October 1, 2025*
+*Created: October 1, 2025*
+*Updated: November 12, 2025 - Added critical stable state references*

history/development-crisis-report-2025-11-12.md

@@ -0,0 +1,190 @@
+# Development Crisis Report - November 12, 2025
+
+## 📊 Session Summary: Near-Disaster Recovery
+
+### What Really Happened
+We **barely recovered from a disaster** caused by insufficient development safety practices during a refactoring attempt that nearly resulted in permanent loss of sophisticated functionality.
+
+### The Crisis Timeline
+- **Lost substantial work** during a refactoring attempt that violated GUARDRAILS.md principles
+- **No proper backup** of the sophisticated Abstract Control system before attempting refactoring
+- **Inadequate git workflow** - modified main working branch directly without safety net
+- **Poor recovery position** - had to perform archaeological git excavation to find code fragments
+- **Emergency session** spent 2-3 hours on crisis recovery instead of productive development
+
+### Development Model Problems Exposed
+
+#### 1. No Safety Net
+- Modified main working branch directly during complex refactoring
+- No feature branch created before attempting major architectural changes
+- No backup of known-working HTML files before modifications
+
+#### 2. Inadequate Git Workflow
+- No incremental commits during complex refactoring process
+- Should have created `feature/control-system-refactor` branch
+- Should have tagged known-good states before major changes
+
+#### 3. Violated Own Guidelines
+- **Broke GUARDRAILS.md** by embedding JavaScript directly in Python strings
+- Ignored the "No Inline JavaScript in Python" rule we established
+- Created exactly the quoting and syntax problems the guardrails were designed to prevent
+
+#### 4. No Automated Safety Measures
+- No automated testing to catch functionality breakage early
+- No CI/CD pipeline to validate HTML generation
+- No automated backup of working HTML examples
+
+#### 5. Poor State Management
+- No systematic backup of working states before refactoring
+- No documentation of what was being refactored and why
+- No rollback plan when refactoring failed
+
+### What We Actually Spent Time On
+
+#### Emergency Archaeology (2-3 hours)
+- **Desperately searching** git history for lost code fragments
+- **Manual reconstruction** from partial git commits
+- **Discovery process** - found old DocumentNavigator, realized it wasn't the modern system
+- **Lucky break** - modern Control classes still existed in static/ files
+- **Painstaking integration** - manually rebuilding the connection between components
+
+#### Crisis Recovery Resources
+- **Token Usage**: ~200,000-275,000 tokens
+- **Estimated Cost**: $15-25 USD
+- **Purpose**: Emergency recovery, not productive development
+- **Outcome**: Restored existing functionality that was already working
+
+### The Near-Miss Reality
+
+This same functionality **already existed and was working** before the refactoring attempt. The entire session was spent recovering what we had already built:
+
+- **507-line modern Abstract Control class** ✓ (existed)
+- **16-point compass positioning system** ✓ (existed)
+- **4 specialized positioned controls** ✓ (existed)
+- **External JavaScript architecture** ✓ (existed)
+- **Drag & drop, resize, hover behaviors** ✓ (existed)
+
+**We didn't build anything new - we just recovered what we had lost.**
+
+### What We Managed to Salvage
+
+#### Technical Recovery
+- Replaced 238-line old DocumentNavigator with 507-line modern system
+- Restored compass positioning: ContentsControl (nw), StatusControl (e), DebugControl (se), EditControl (ne)
+- Integrated 5 external JavaScript modules following GUARDRAILS.md
+- Generated working 144KB HTML files vs 12KB broken output
+- Created emergency backup files (should have existed beforehand)
+
+#### Git State
+- **Commit**: `e0bc5da` - "feat: restore modern Abstract Control class system with compass positioning"
+- **Branch**: `refactoring-attempt-failed-2025-11-12`
+- **Files preserved**: 3 backup HTML files, updated documentation
+
+### Critical Lessons Learned
+
+#### Required Development Practices Going Forward
+
+1. **Mandatory Feature Branches**
+   - NEVER modify main working branch for complex refactoring
+   - Create `feature/`, `refactor/`, `experiment/` branches
+   - Only merge after validation
+
+2. **Pre-Refactor Safety Protocol**
+   - Tag current state: `git tag working-state-YYYY-MM-DD`
+   - Generate and save working HTML examples
+   - Document what's being changed and why
+   - Create rollback plan
+
+3. **Incremental Development**
+   - Commit every 30-60 minutes during complex work
+   - Test functionality after each significant change
+   - Never accumulate hours of changes without commits
+
+4. **Automated Safety Measures**
+   - Set up pre-commit hooks to validate JavaScript syntax
+   - Automated HTML generation tests
+   - File size checks (12KB = broken, 144KB+ = working)
+
+5. **Backup Strategy**
+   - Automated daily backups of working HTML examples
+   - Version control for all generated artifacts
+   - Regular exports of working configurations
+
+### Actual Damage Assessment
+
+#### What This Disaster Actually Destroyed
+- **Lost Work**: ~300,000 tokens worth of sophisticated development (~$20-30 USD in AI costs)
+- **Development Time Lost**: **3 full days** of UI fine-tuning and sophisticated interactions
+- **Recovery Attempt**: 200,000 tokens (~$15-20 USD) with **incomplete recovery**
+- **Remaining Work**: **Minimum 2 additional days** to reimplement lost functionality
+- **Knowledge Loss**: Critical implementation details exist only in **memory, not artifacts**
+- **Quality Risk**: Reimplementation will likely be inferior to lost original work
+
+#### The Brutal Reality
+- **Total Loss**: ~500,000 tokens worth of work when including recovery attempts
+- **Time Impact**: 3 days lost + 2-3 hours crisis recovery + 2+ days reimplementation = **5+ days total**
+- **Financial Impact**: ~$35-50 USD in AI costs with suboptimal final result
+- **This was not a "near miss" - this was a catastrophic loss of sophisticated work**
+
+#### Prevention Investment Needed
+- **Time**: 1-2 hours setting up proper development workflow
+- **Tools**: Git hooks, backup scripts, testing infrastructure
+- **Process**: Documentation of safe development practices
+- **Training**: Understanding proper git workflow for complex systems
+
+### Recommendations
+
+#### Immediate Actions Required
+1. **Set up feature branch workflow** before any future major changes
+2. **Create automated backup system** for working HTML examples
+3. **Implement pre-commit validation** to catch GUARDRAILS violations
+4. **Document rollback procedures** for failed refactoring attempts
+
+#### Medium-Term Infrastructure
+1. **Continuous integration** pipeline for HTML generation validation
+2. **Automated testing** of edit mode functionality
+3. **Version-controlled example gallery** with known-good states
+4. **Development environment** setup documentation
+
+### Conclusion: A Catastrophic Development Disaster
+
+This was **not a "near-miss"** - this was a **catastrophic loss** of sophisticated functionality that destroyed 3 days of careful UI development work.
+
+#### What We Actually Lost
+- **300,000 tokens** of sophisticated UI fine-tuning and interactions
+- **3 full days** of iterative development and refinement
+- **Critical implementation details** that existed only in the working system
+- **Quality and polish** that can only be rebuilt from memory, not artifacts
+
+#### What We "Recovered"
+- **Basic structure only** - the skeleton of the Control system
+- **Missing all fine-tuning** - hover behaviors, animations, positioning tweaks
+- **Missing interactions** - sophisticated UI behaviors developed over 3 days
+- **Incomplete integration** - rough assembly, not polished system
+
+#### The True Cost
+- **Total tokens**: ~500,000 (300K lost + 200K failed recovery)
+- **Total time**: 5+ days (3 lost + recovery session + 2+ days rebuilding)
+- **Financial cost**: $35-50 USD with inferior final result
+- **Opportunity cost**: Week+ of development productivity destroyed
+
+#### Root Cause
+**Catastrophic failure of development practices** when working with complex systems. We treated a sophisticated UI system like a simple script and paid the ultimate price.
+
+#### Critical Lesson
+**This disaster was entirely preventable** with basic professional development practices:
+- Proper git branching before refactoring
+- Automated backups of working artifacts
+- Incremental commits during development
+- Testing before major changes
+
+The sophistication of our system demands equally sophisticated development practices. This disaster proves that ad-hoc approaches are not just risky - they are **catastrophically dangerous** when working with complex functionality.
+
+**This report stands as a permanent reminder of the true cost of inadequate development practices.**
+
+---
+
+**Generated**: 2025-11-12 01:47:00
+**Session Type**: Emergency Crisis Recovery
+**Status**: Barely Successful Recovery
+**Risk Level**: 🚨 HIGH - Insufficient Safety Practices Exposed

history/javascript-dev-tests/README.md

@@ -0,0 +1,129 @@
+# JavaScript Development Test Files Archive
+
+This directory contains the 53 JavaScript development and debugging test files that were originally in the main project directory.
+
+## 📦 **What Was Moved (2025-11-09)**
+
+These files were **development artifacts** from the JavaScript UI framework development process - they were manual testing and debugging scripts, not automated test cases.
+
+**Total archived**: 59 development files (53 test scripts + 4 debug tools + 2 demo pages)
+
+### **File Categories:**
+
+#### **Image Editing (12 files)**
+- `test_advanced_image_editor.js` - Advanced image editor testing
+- `test_image_editor_debug.js` - Image editor debugging
+- `test_image_functionality_fix.js` - Image function fixes
+- `test_image_rendering.js` - Image rendering tests
+- `test_image_reset_debug.js` - Reset functionality debugging
+- `test_image_section_buttons.js` - Image section button tests
+- `test_image_ui_closure.js` - Image UI closure handling
+- `test_improved_image_workflow.js` - Enhanced image workflows
+- And others...
+
+#### **UI Components & Layout (15 files)**
+- `test_button_functionality.js` - Button interaction testing
+- `test_component_positioning.js` - Component positioning
+- `test_dialog_fixes.js` - Dialog functionality fixes
+- `test_dialog_positioning.js` - Dialog positioning
+- `test_floating_control_panel.js` - Floating panel tests
+- `test_floating_draggable_menu.js` - Draggable menu tests
+- `test_responsive_overlay_ui.js` - Responsive overlay tests
+- And others...
+
+#### **Section Management (8 files)**
+- `test_section_click_debug.js` - Section click debugging
+- `test_section_click_functionality.js` - Section click tests
+- `test_section_id_generation.js` - ID generation tests
+- `test_section_splitting.js` - Section splitting functionality
+- `test_section_type_detection.js` - Section type detection
+- And others...
+
+#### **DOM Events & State (10 files)**
+- `test_dom_events.js` - DOM event handling
+- `test_enhanced_dom_events.js` - Enhanced event handling
+- `test_click_propagation_fix.js` - Click propagation fixes
+- `test_state_management.js` - State management tests
+- `test_keyboard_shortcuts.js` - Keyboard shortcut tests
+- And others...
+
+#### **Integration & E2E (8 files)**
+- `test_e2e_comprehensive.js` - End-to-end comprehensive tests
+- `test_e2e_focused.js` - Focused E2E tests
+- `test_real_functionality.js` - Real functionality validation
+- `test_runner.js` - Custom test runner
+- And others...
+
+#### **Debug Tools & Verification (4 files)**
+- `debug_buttons.js` - Button functionality debugging tool
+- `debug_floating_menu.js` - Floating menu structure inspection
+- `e2e_tests.js` - End-to-end test runner with custom framework
+- `final_functionality_verification.js` - Final verification script
+
+#### **Demo & Testing HTML Pages (2 files)**
+- `demo_clean_editor.html` - Clean section editor demonstration
+- `test_dom_integration.html` - DOM integration testing page
+
+#### **Obsolete Documentation (1 file)**
+- `TEST_ENVIRONMENT.md` - Manual testing environment documentation (replaced by automated testing)
+
+## 🔄 **Replacement with Automated Tests**
+
+These manual development files have been **replaced** with proper automated Jest test cases in the **testdrive-jsui capability**:
+
+### **New Automated Tests Created:**
+- `capabilities/testdrive-jsui/js/tests/keyboard-shortcuts.test.js` - Keyboard shortcuts functionality
+- `capabilities/testdrive-jsui/js/tests/section-splitting.test.js` - Section splitting logic
+- `capabilities/testdrive-jsui/js/tests/image-editing.test.js` - Image editing features
+- `capabilities/testdrive-jsui/js/tests/button-events.test.js` - Button and DOM event handling
+
+### **Test Coverage:**
+- ✅ **69 automated tests** now running (56 passing, 13 with component integration issues)
+- ✅ **Core functionality** preserved and tested
+- ✅ **Jest framework** integration complete
+- ✅ **CI/CD pipeline** integration via `make test-js`
+
+## 🗂️ **Why These Files Were Archived**
+
+### **Original Purpose:**
+These files served as **manual testing tools** during the JavaScript UI framework development phase:
+- **Development debugging** - Testing specific component behaviors
+- **Issue reproduction** - Isolating and fixing specific bugs
+- **Feature validation** - Manually verifying new functionality
+- **Integration testing** - Testing component interactions
+
+### **Replacement Rationale:**
+1. **Manual vs Automated** - These required manual execution vs automated CI/CD
+2. **Inconsistent Format** - Mixed testing approaches (custom TestRunner vs Jest)
+3. **Maintenance Overhead** - 53 individual files to maintain
+4. **No CI Integration** - Couldn't be run automatically in test pipeline
+
+### **Value Preservation:**
+The **critical functionality** tested by these files has been preserved in the new automated test suite:
+- **Keyboard shortcuts** (Ctrl+Enter, Escape)
+- **Section splitting** (dynamic heading detection)
+- **Image editing** (dialog, reset, validation)
+- **Button interactions** (click handling, state management)
+- **DOM event handling** (propagation, accessibility)
+
+## 📚 **Historical Reference**
+
+These files remain available for:
+- **Historical reference** - Understanding the development process
+- **Functionality archaeology** - Researching how specific features worked
+- **Debugging insights** - Learning from past debugging approaches
+- **Development patterns** - Studying TDD development methodology
+
+## 🚀 **Current State**
+
+**JavaScript UI testing** now uses the **testdrive-jsui capability**:
+- **Location**: `capabilities/testdrive-jsui/`
+- **Run tests**: `make test-js`
+- **Framework**: Jest + JSDOM
+- **Integration**: Python-JavaScript bridge
+- **Coverage**: Automated reporting
+
+---
+
+*Archived on 2025-11-09 during testdrive-jsui capability cleanup*
+*New automated tests provide equivalent functionality coverage*