cleanup: move remaining JavaScript development artifacts to history

Complete the cleanup by moving the final 6 JavaScript development files
(4 debug tools + 2 demo HTML pages) to history archive.

Additional Files Moved:
- 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_clean_editor.html: Clean section editor demonstration
- test_dom_integration.html: DOM integration testing page

Documentation Updates:
- Updated history/javascript-dev-tests/README.md to document all 59 archived files
- Added categorization for debug tools and demo pages
- Complete project root directory cleanup achieved

Project Status:
- ✅ Main directory now clean of all development artifacts
- ✅ All 59 JavaScript development files properly archived
- ✅ Comprehensive documentation of archived functionality
- ✅ 79 automated tests providing equivalent coverage

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

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

history/javascript-dev-tests/README.md

@@ -6,6 +6,8 @@ This directory contains the 53 JavaScript development and debugging test files t
 
 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)**
@@ -52,6 +54,16 @@ These files were **development artifacts** from the JavaScript UI framework deve
 - `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
+
 ## 🔄 **Replacement with Automated Tests**
 
 These manual development files have been **replaced** with proper automated Jest test cases in the **testdrive-jsui capability**: