feat: Add BOM tree view and BOM item editor components

- Introduced new components for BOM tree view and BOM item editor, enhancing the data management capabilities within the application.
- Updated the ComponentsPanel to include these new components with appropriate descriptions and default sizes.
- Integrated the BOM item editor into the V2PropertiesPanel for seamless editing of BOM items.
- Adjusted the SplitLineComponent to improve the handling of canvas split positions, ensuring better user experience during component interactions.

frontend/lib/registry/components/index.ts

@@ -114,6 +114,7 @@ import "./v2-date/V2DateRenderer"; // V2 통합 날짜 컴포넌트
 import "./v2-file-upload/V2FileUploadRenderer"; // V2 파일 업로드 컴포넌트
 import "./v2-split-line/SplitLineRenderer"; // V2 캔버스 분할선
 import "./v2-bom-tree/BomTreeRenderer"; // BOM 트리 뷰
+import "./v2-bom-item-editor/BomItemEditorRenderer"; // BOM 하위품목 편집기
 
 /**
  * 컴포넌트 초기화 함수