Merge pull request '행 이동 화면 할당한 상황에서도 가능하게, 코드병합 버튼액션에 추가' (#183) from lhj into main

Reviewed-on: http://39.117.244.52:3000/kjs/ERP-node/pulls/183

frontend/lib/api/tableSchema.ts

@@ -0,0 +1,45 @@
+import { apiClient } from "./client";
+
+export interface TableColumn {
+  name: string;
+  type: string;
+  nullable: boolean;
+  default: string | null;
+  maxLength: number | null;
+  precision: number | null;
+  scale: number | null;
+}
+
+export interface TableSchemaResponse {
+  success: boolean;
+  message: string;
+  data: {
+    tableName: string;
+    columns: TableColumn[];
+  };
+}
+
+/**
+ * 테이블 스키마 조회 (엑셀 업로드 컬럼 매핑용)
+ */
+export async function getTableSchema(
+  tableName: string
+): Promise<TableSchemaResponse> {
+  try {
+    const response = await apiClient.get<TableSchemaResponse>(
+      `/admin/tables/${tableName}/schema`
+    );
+    return response.data;
+  } catch (error: any) {
+    console.error("테이블 스키마 조회 실패:", error);
+    return {
+      success: false,
+      message: error.response?.data?.message || "테이블 스키마 조회 실패",
+      data: {
+        tableName,
+        columns: [],
+      },
+    };
+  }
+}
+