Merge origin/main into gbpark-node

부서관리 V1 슬림 스코프 + UX 리디자인, 25개 버그 일괄 수정, admin/부서관리
탭 라벨 fallback, Windows dev HMR 복원 흡수.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/lib/api/department.ts

@@ -6,12 +6,18 @@ import { apiClient } from "./client";
 import { Department, DepartmentMember, DepartmentFormData } from "@/types/department";
 
 /**
- * 부서 목록 조회 (회사별)
+ * 부서 목록 조회 (회사별).
+ * options.includeDeleted=true 시 soft-delete 된 부서도 포함.
  */
-export async function getDepartments(companyCode: string) {
+export async function getDepartments(
+  companyCode: string,
+  options?: { includeDeleted?: boolean },
+) {
   try {
     const url = `/departments/companies/${companyCode}/departments`;
-    const response = await apiClient.get<{ success: boolean; data: Department[] }>(url);
+    const response = await apiClient.get<{ success: boolean; data: Department[] }>(url, {
+      params: options?.includeDeleted ? { include_deleted: true } : undefined,
+    });
     return response.data;
   } catch (error: any) {
     console.error("부서 목록 조회 실패:", error);
@@ -67,11 +73,16 @@ export async function updateDepartment(deptCode: string, data: DepartmentFormDat
 }
 
 /**
- * 부서 삭제
+ * 부서 삭제 (V1: soft-delete).
+ * 응답 호환: 기존 { success, message } 에 data.soft_deleted=true 필드 추가.
  */
 export async function deleteDepartment(deptCode: string) {
   try {
-    const response = await apiClient.delete<{ success: boolean }>(`/departments/${deptCode}`);
+    const response = await apiClient.delete<{
+      success: boolean;
+      message?: string;
+      data?: { soft_deleted?: boolean; dept_code?: string };
+    }>(`/departments/${deptCode}`);
     return response.data;
   } catch (error: any) {
     console.error("부서 삭제 실패:", error);
@@ -79,6 +90,27 @@ export async function deleteDepartment(deptCode: string) {
   }
 }
 
+/**
+ * 부서 복구 (V1 신규 — soft-delete 된 부서 되살리기).
+ * 부모가 deleted 면 차단 (400) → "상위 부서를 먼저 복구해주세요" 메시지.
+ */
+export async function restoreDepartment(deptCode: string) {
+  try {
+    const response = await apiClient.post<{
+      success: boolean;
+      message?: string;
+      data?: { dept_code?: string; restored?: boolean };
+    }>(`/departments/${deptCode}/restore`);
+    return response.data;
+  } catch (error: any) {
+    console.error("부서 복구 실패:", error);
+    return {
+      success: false,
+      error: error.response?.data?.message || error.message,
+    };
+  }
+}
+
 /**
  * 부서원 목록 조회
  */