refactor: Update references from table_column_category_values to category_values

- Changed all occurrences of `table_column_category_values` to `category_values` in the backend services and controllers to standardize the terminology.
- Updated SQL queries to reflect the new table name, ensuring proper data retrieval and management.
- Adjusted comments and documentation to clarify the purpose of the `category_values` table in the context of category management.

These changes enhance code clarity and maintain consistency across the application.

backend-node/src/controllers/entityJoinController.ts

@@ -417,10 +417,10 @@ export class EntityJoinController {
       // 1. 현재 테이블의 Entity 조인 설정 조회
       const allJoinConfigs = await entityJoinService.detectEntityJoins(tableName, undefined, companyCode);
       
-      // 🆕 화면 디자이너용: table_column_category_values는 카테고리 드롭다운용이므로 제외
+      // 🆕 화면 디자이너용: category_values는 카테고리 드롭다운용이므로 제외
       // 카테고리 값은 엔티티 조인 컬럼이 아니라 셀렉트박스 옵션으로 사용됨
       const joinConfigs = allJoinConfigs.filter(
-        (config) => config.referenceTable !== "table_column_category_values"
+        (config) => config.referenceTable !== "category_values"
       );
 
       if (joinConfigs.length === 0) {