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>

js/tests/test-documentcontrols-extraction.js

@@ -37,14 +37,14 @@ runner.describe('DocumentControls Component Extraction', () => {
 
     runner.it('should load extracted DocumentControls component', () => {
         // Load the extracted component
-        delete require.cache[require.resolve('../components/document-controls-legacy.js')];
+        delete require.cache[require.resolve('../components/document-controls.js')];
 
         try {
-            const module = require('../components/document-controls-legacy.js');
-            runner.expect(module.DocumentControlsLegacy).toBeTruthy();
+            const module = require('../components/document-controls.js');
+            runner.expect(module.DocumentControls).toBeTruthy();
 
             // Set global for other tests
-            global.ExtractedDocumentControls = module.DocumentControlsLegacy;
+            global.ExtractedDocumentControls = module.DocumentControls;
         } catch (error) {
             throw new Error(`Failed to load extracted DocumentControls: ${error.message}`);
         }