docs: reorganize markdown documentation into proper directory structure

Move technical documentation from root directory to organized locations
for better project structure and discoverability.

Documentation Moved to docs/development/:
- UserInterfaceFramework.md: UI component framework specification and architecture
- LOST_FUNCTIONALITY_ANALYSIS.md: Technical analysis of recovered JavaScript functionality
- TDD_COMPLIANCE_REPORT.md: Test-Driven Development methodology validation report

Obsolete Documentation Archived:
- TEST_ENVIRONMENT.md → history/javascript-dev-tests/
  Manual testing environment docs (replaced by automated testing)

Files Remaining in Root:
- CHANGELOG.md: Project changelog (standard location)
- TODO.md: Active project tasks (operational file)

Benefits:
- ✅ Clean root directory with only operational files
- ✅ Technical documentation properly organized in docs/development/
- ✅ Obsolete docs archived with historical context
- ✅ Improved project navigation and documentation discoverability
- ✅ Follows standard project organization conventions

Project Structure:
- Root: Operational files (CHANGELOG, TODO)
- docs/development/: Technical documentation and reports
- history/: Archived development artifacts and obsolete documentation

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

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

history/javascript-dev-tests/README.md

@@ -64,6 +64,9 @@ These files were **development artifacts** from the JavaScript UI framework deve
 - `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**:

history/javascript-dev-tests/TEST_ENVIRONMENT.md

@@ -0,0 +1,113 @@
+# HTML Editor Test Environment
+
+## 🎯 Overview
+
+This test environment allows for comprehensive testing of the MarkiTect HTML editor functionality using Node.js and headless browser testing.
+
+## 🛠️ Available Tools
+
+### 1. Basic Test Runner (`test_runner.js`)
+```bash
+node test_runner.js [html-file-path]
+```
+- Structural validation
+- Function availability checking
+- Basic DOM testing
+
+### 2. E2E Test Suite (`e2e_tests.js`)
+```bash
+node e2e_tests.js [html-file-path]
+```
+- Comprehensive functionality testing
+- Interactive behavior validation
+- Button functionality verification
+
+### 3. Button Debug Tool (`debug_buttons.js`)
+```bash
+node debug_buttons.js [html-file-path]
+```
+- Detailed button creation analysis
+- Event handler verification
+- DOM interaction simulation
+
+## 🧪 Test Results Summary
+
+### ✅ **Working Features:**
+1. **Section Detection**: 7 sections created (2 image sections detected)
+2. **Click Handling**: All sections respond to clicks correctly
+3. **Image Editor**: Image editor dialog opens successfully
+4. **Button Creation**: All 7 buttons created with proper handlers
+5. **Auto-resize**: Textarea auto-resize functionality working
+6. **Debug System**: Console-based debug logging active
+
+### 🎯 **Verified Functionality:**
+- ✅ Section editing for text sections
+- ✅ Image editor dialog for image sections
+- ✅ Button event binding (Replace, Resize, Caption, Remove)
+- ✅ Global controls (Save, Reset, Status)
+- ✅ Auto-resizing textareas
+- ✅ Proper CSS styling and visual feedback
+
+## 🚀 TDD Workflow
+
+### For New Features:
+1. **Write Test First**: Add test case to e2e_tests.js
+2. **Run Test**: `node e2e_tests.js /path/to/test.html`
+3. **See Red**: Test should fail initially
+4. **Implement Feature**: Add code to editor.js
+5. **See Green**: Re-run test to verify fix
+6. **Refactor**: Clean up implementation
+
+### For Bug Fixes:
+1. **Reproduce Issue**: Use debug_buttons.js to identify problem
+2. **Create Test**: Add test case that reproduces the bug
+3. **Fix Implementation**: Update editor.js
+4. **Verify Fix**: Run comprehensive tests
+
+## 📊 Test File Locations
+
+- **Test Files**: `/tmp/test_*.html`
+- **Latest Working**: `/tmp/test_final_comprehensive.html`
+- **Source Editor**: `/home/worsch/markitect_project/markitect/static/editor.js`
+
+## 🔧 Debug Commands
+
+### Quick Structural Check:
+```bash
+node test_runner.js /tmp/test_final_comprehensive.html
+```
+
+### Full Functionality Test:
+```bash
+node e2e_tests.js /tmp/test_final_comprehensive.html
+```
+
+### Button Behavior Analysis:
+```bash
+node debug_buttons.js /tmp/test_final_comprehensive.html
+```
+
+### Generate Fresh Test HTML:
+```bash
+MARKITECT_EDIT_MODE=true markitect md-render /tmp/test_regular_images.md --output /tmp/new_test.html
+```
+
+## 🎉 Success Criteria
+
+All tests should show:
+- ✅ 6/6 basic tests passing
+- ✅ DOM environment loads successfully
+- ✅ 7 sections created (2 image sections)
+- ✅ Image editor opens on image click
+- ✅ All buttons have event handlers
+- ✅ Console debug messages active
+
+## 🐛 Common Issues
+
+If buttons aren't working in the browser but tests pass:
+1. Check browser console for JavaScript errors
+2. Verify `this` context binding in arrow functions
+3. Ensure sectionId is properly captured in closures
+4. Check for event propagation issues
+
+The test environment provides a complete TDD workflow for continuing development! 🚀