feat: Implement password masking and encryption in data services

- Added a new function `maskPasswordColumns` to mask password fields in data responses, ensuring sensitive information is not exposed.
- Integrated password handling in `DynamicFormService` to encrypt new passwords and maintain existing ones when empty values are provided.
- Enhanced logging for better tracking of password field updates and masking failures, improving overall security and debugging capabilities.

frontend/lib/registry/components/selected-items-detail-input/SelectedItemsDetailInputComponent.tsx

@@ -596,10 +596,22 @@ export const SelectedItemsDetailInputComponent: React.FC<SelectedItemsDetailInpu
           const additionalFields = componentConfig.additionalFields || [];
           const mainTable = componentConfig.targetTable!;
 
-          // 수정 모드 감지: URL에 mode=edit가 있으면 수정 모드
+          // 수정 모드 감지 (2가지 방법으로 확인)
+          // 1. URL에 mode=edit 파라미터 확인
+          // 2. 로드된 데이터에 DB id(PK)가 존재하는지 확인
           // 수정 모드에서는 항상 deleteOrphans=true (기존 레코드 교체, 복제 방지)
           const urlParams = typeof window !== "undefined" ? new URLSearchParams(window.location.search) : null;
-          const isEditMode = urlParams?.get("mode") === "edit";
+          const urlEditMode = urlParams?.get("mode") === "edit";
+          const dataHasDbId = items.some(item => !!item.originalData?.id);
+          const isEditMode = urlEditMode || dataHasDbId;
+
+          console.log("[SelectedItemsDetailInput] 수정 모드 감지:", {
+            urlEditMode,
+            dataHasDbId,
+            isEditMode,
+            itemCount: items.length,
+            firstItemId: items[0]?.originalData?.id,
+          });
 
           // fieldGroup별 sourceTable 분류
           const groupsByTable = new Map<string, typeof groups>();
@@ -695,6 +707,16 @@ export const SelectedItemsDetailInputComponent: React.FC<SelectedItemsDetailInpu
               // 신규 등록이고 id 없으면 → 기존 레코드 건드리지 않음
               const mappingHasDbIds = mappingRecords.some((r) => !!r.id);
               const shouldDeleteOrphans = isEditMode || mappingHasDbIds;
+
+              console.log(`[SelectedItemsDetailInput] ${mainTable} 저장:`, {
+                isEditMode,
+                mappingHasDbIds,
+                shouldDeleteOrphans,
+                recordCount: mappingRecords.length,
+                recordIds: mappingRecords.map(r => r.id || "NEW"),
+                parentKeys: itemParentKeys,
+              });
+
               // 저장된 매핑 ID를 추적 (디테일 테이블에 mapping_id 주입용)
               let savedMappingIds: string[] = [];
               try {
@@ -782,6 +804,16 @@ export const SelectedItemsDetailInputComponent: React.FC<SelectedItemsDetailInpu
 
                 const priceHasDbIds = priceRecords.some((r) => !!r.id);
                 const shouldDeleteDetailOrphans = isEditMode || priceHasDbIds;
+
+                console.log(`[SelectedItemsDetailInput] ${detailTable} 저장:`, {
+                  isEditMode,
+                  priceHasDbIds,
+                  shouldDeleteDetailOrphans,
+                  recordCount: priceRecords.length,
+                  recordIds: priceRecords.map(r => r.id || "NEW"),
+                  parentKeys: itemParentKeys,
+                });
+
                 try {
                   const detailResult = await dataApi.upsertGroupedRecords(
                     detailTable,