공통코드 관리 시스템 개선 완료

frontend/lib/api/commonCode.ts

@@ -114,6 +114,46 @@ export const commonCodeApi = {
     },
   },
 
+  // 중복 검사 API
+  validation: {
+    /**
+     * 카테고리 중복 검사
+     */
+    async checkCategoryDuplicate(
+      field: "categoryCode" | "categoryName" | "categoryNameEng",
+      value: string,
+      excludeCode?: string,
+    ): Promise<ApiResponse<{ isDuplicate: boolean; message: string; field: string; value: string }>> {
+      const params = new URLSearchParams();
+      params.append("field", field);
+      params.append("value", value);
+      if (excludeCode) params.append("excludeCode", excludeCode);
+
+      const response = await apiClient.get(`/common-codes/categories/check-duplicate?${params}`);
+      return response.data;
+    },
+
+    /**
+     * 코드 중복 검사
+     */
+    async checkCodeDuplicate(
+      categoryCode: string,
+      field: "codeValue" | "codeName" | "codeNameEng",
+      value: string,
+      excludeCode?: string,
+    ): Promise<
+      ApiResponse<{ isDuplicate: boolean; message: string; categoryCode: string; field: string; value: string }>
+    > {
+      const params = new URLSearchParams();
+      params.append("field", field);
+      params.append("value", value);
+      if (excludeCode) params.append("excludeCode", excludeCode);
+
+      const response = await apiClient.get(`/common-codes/categories/${categoryCode}/codes/check-duplicate?${params}`);
+      return response.data;
+    },
+  },
+
   // 옵션 조회 API (화면관리용)
   options: {
     /**