refactor: complete post-migration cleanup

Implemented all cleanup items from CLEANUP_REPORT.md:

Legacy Code Removal:
- Removed document-controls-legacy.js wrapper
- Updated 4 test files to use DocumentControls directly
- Updated scripts/list_components.py acronym mappings
- Updated tests/test_component_listing.py expectations

Archive and Organization:
- Moved relicts/ to docs/prototypes/ with README explaining history
- Moved MIGRATION_STATUS.md to docs/migration/
- Removed IMPLEMENTATION_NOTES.md legacy references

Test Verification:
- All 68 JavaScript tests passing (Jest)
- All 3 Python component tests passing
- No breaking changes to functionality

The codebase is now cleaner with no legacy wrappers or empty
directories. Migration is complete and documented.

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

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

scripts/list_components.py

@@ -52,8 +52,7 @@ class ComponentAnalyzer:
             'CssProcessor': 'CSSProcessor',
             'JsEngine': 'JSEngine',
             'ApiClient': 'APIClient',
-            'UrlHandler': 'URLHandler',
-            'DocumentControlsLegacy': 'DocumentControlsLegacy'
+            'UrlHandler': 'URLHandler'
         }
 
         component_name = acronym_mappings.get(component_name, component_name)