feat: Enhance BOM and UI components with improved label handling and data mapping

- Updated the BOM service to include additional fields in the BOM header retrieval, enhancing data richness.
- Enhanced the EditModal to automatically map foreign key fields to dot notation, improving data handling and user experience.
- Improved the rendering of labels in various components, allowing for customizable label positions and styles, enhancing UI flexibility.
- Added new properties for label positioning and spacing in the V2 component styles, allowing for better layout control.
- Enhanced the BomTreeComponent to support additional data mapping for entity joins, improving data accessibility and management.

frontend/types/v2-core.ts

@@ -153,10 +153,12 @@ export interface CommonStyle {
   // 라벨 스타일
   labelDisplay?: boolean; // 라벨 표시 여부
   labelText?: string; // 라벨 텍스트
+  labelPosition?: "top" | "left" | "right" | "bottom"; // 라벨 위치 (기본: top)
   labelFontSize?: string;
   labelColor?: string;
   labelFontWeight?: string;
   labelMarginBottom?: string;
+  labelGap?: string; // 라벨-위젯 간격 (좌/우 배치 시 사용)
 
   // 레이아웃
   display?: string;