feat: ESLint 정리 및 전체 코드 품질 개선

- eslint.config.mjs 규칙 강화 및 정리
- 전역 unused import/변수 제거 (312개 파일)
- next.config.ts, middleware, proxy route 개선
- CopyableCell molecule 추가
- 회계/결재/HR/생산/건설/품질/영업 등 전 도메인 lint 정리
- IntegratedListTemplateV2, DataTable, MobileCard 등 공통 컴포넌트 개선
- execute-server-action 에러 핸들링 보강

src/components/process-management/ProcessDetailClientV2.tsx

@@ -7,7 +7,7 @@
  * 기존 ProcessDetail, ProcessForm 컴포넌트 활용
  */
 
-import { useState, useEffect, useCallback } from 'react';
+import { useState, useEffect } from 'react';
 import { useRouter, useSearchParams } from 'next/navigation';
 import { ProcessDetail } from './ProcessDetail';
 import { ProcessForm } from './ProcessForm';
@@ -27,7 +27,7 @@ interface ProcessDetailClientV2Props {
 const BASE_PATH = '/ko/master-data/process-management';
 
 export function ProcessDetailClientV2({ processId, initialMode }: ProcessDetailClientV2Props) {
-  const router = useRouter();
+  const _router = useRouter();
   const searchParams = useSearchParams();
 
   // URL 쿼리에서 모드 결정

src/components/process-management/ProcessForm.tsx

@@ -32,7 +32,7 @@ import {
 import { RuleModal } from './RuleModal';
 import { toast } from 'sonner';
 import type { Process, ClassificationRule, ProcessType, ProcessStep } from '@/types/process';
-import { PROCESS_TYPE_OPTIONS, PROCESS_CATEGORY_OPTIONS } from '@/types/process';
+import { PROCESS_CATEGORY_OPTIONS } from '@/types/process';
 import {
   createProcess,
   updateProcess,
@@ -54,7 +54,7 @@ export function ProcessForm({ mode, initialData }: ProcessFormProps) {
 
   // 기본 정보 상태
   const [processName, setProcessName] = useState(initialData?.processName || '');
-  const [processType, setProcessType] = useState<ProcessType>(
+  const [processType, _setProcessType] = useState<ProcessType>(
     initialData?.processType || '생산'
   );
   const [department, setDepartment] = useState(initialData?.department || '');
@@ -68,7 +68,7 @@ export function ProcessForm({ mode, initialData }: ProcessFormProps) {
   const [isActive, setIsActive] = useState(
     initialData ? initialData.status === '사용중' : true
   );
-  const [isLoading, setIsLoading] = useState(false);
+  const [, setIsLoading] = useState(false);
 
   // 중간검사/작업일지 설정 (Process 레벨)
   const [needsInspection, setNeedsInspection] = useState(
@@ -122,7 +122,7 @@ export function ProcessForm({ mode, initialData }: ProcessFormProps) {
     } else if (processCategory && !categoryOptions.find(o => o.value === processCategory)) {
       setProcessCategory('');
     }
-  }, [categoryOptions]); // eslint-disable-line react-hooks/exhaustive-deps
+  }, [categoryOptions]);  
 
   // 개별 품목 목록 추출
   const individualItems = classificationRules

src/components/process-management/ProcessListClient.tsx

@@ -40,7 +40,7 @@ export default function ProcessListClient({ initialData = [], initialStats }: Pr
 
   // ===== 상태 =====
   const [allProcesses, setAllProcesses] = useState<Process[]>(initialData);
-  const [stats, setStats] = useState(initialStats ?? { total: 0, active: 0, inactive: 0 });
+  const [, setStats] = useState(initialStats ?? { total: 0, active: 0, inactive: 0 });
   const [isLoading, setIsLoading] = useState(false);
   const [deleteDialogOpen, setDeleteDialogOpen] = useState(false);
   const [deleteTargetId, setDeleteTargetId] = useState<string | null>(null);
@@ -100,11 +100,11 @@ export default function ProcessListClient({ initialData = [], initialStats }: Pr
     router.push('/ko/master-data/process-management?mode=new');
   }, [router]);
 
-  const handleEdit = useCallback((process: Process) => {
+  const _handleEdit = useCallback((process: Process) => {
     router.push(`/ko/master-data/process-management/${process.id}?mode=edit`);
   }, [router]);
 
-  const handleDeleteClick = useCallback((processId: string) => {
+  const _handleDeleteClick = useCallback((processId: string) => {
     setDeleteTargetId(processId);
     setDeleteDialogOpen(true);
   }, []);
@@ -270,7 +270,7 @@ export default function ProcessListClient({ initialData = [], initialStats }: Pr
 
       // API 액션
       actions: {
-        getList: async (params?: ListParams) => {
+        getList: async (_params?: ListParams) => {
           try {
             const [listResult, statsResult] = await Promise.all([
               getProcessList({ size: 1000 }),
@@ -316,9 +316,9 @@ export default function ProcessListClient({ initialData = [], initialStats }: Pr
         { key: 'drag', label: '', className: 'w-[40px]' },
         { key: 'checkbox', label: '', className: 'w-[50px]' },
         { key: 'no', label: '번호', className: 'w-[60px] text-center' },
-        { key: 'processCode', label: '공정번호', className: 'w-[120px]' },
-        { key: 'processName', label: '공정명', className: 'min-w-[200px]' },
-        { key: 'department', label: '담당부서', className: 'w-[120px]' },
+        { key: 'processCode', label: '공정번호', className: 'w-[120px]', copyable: true },
+        { key: 'processName', label: '공정명', className: 'min-w-[200px]', copyable: true },
+        { key: 'department', label: '담당부서', className: 'w-[120px]', copyable: true },
         { key: 'items', label: '품목', className: 'w-[80px] text-center' },
         { key: 'inspection', label: '중간검사', className: 'w-[90px] text-center' },
         { key: 'workLog', label: '작업일지', className: 'w-[90px] text-center' },

src/components/process-management/ProcessWorkLogContent.tsx

@@ -9,7 +9,7 @@
  */
 
 import type { Process } from '@/types/process';
-import { DocumentHeader, SectionHeader } from '@/components/document-system';
+import { DocumentHeader } from '@/components/document-system';
 
 const getDocumentCode = (processName: string): string => {
   if (processName.includes('스크린')) return 'WL-SCR';

src/components/process-management/RuleModal.tsx

@@ -77,19 +77,19 @@ export function RuleModal({ open, onOpenChange, onAdd, editRule, processId, proc
 
   // 공정/구분 필터 상태
   const [processFilter, setProcessFilter] = useState('all');
-  const [categoryFilter, setCategoryFilter] = useState('all');
+  const [, setCategoryFilter] = useState('all');
 
   // 품목 목록 API 상태
   const [itemList, setItemList] = useState<ItemOption[]>([]);
   const [isItemsLoading, setIsItemsLoading] = useState(false);
 
   // 품목 유형 옵션 (common_codes에서 동적 조회)
-  const [itemTypeOptions, setItemTypeOptions] = useState<Array<{ value: string; label: string }>>([
+  const [, setItemTypeOptions] = useState<Array<{ value: string; label: string }>>([
     { value: 'all', label: '전체' },
   ]);
 
   // 구분 필터 옵션 (공정 필터에 따라 변경)
-  const categoryFilterOptions = getCategoryFilterOptions(processFilter);
+  const _categoryFilterOptions = getCategoryFilterOptions(processFilter);
 
   // 품목 목록 로드
   const loadItems = useCallback(async (q?: string, itemType?: string) => {

src/components/process-management/StepForm.tsx

@@ -120,7 +120,7 @@ export function StepForm({ mode, processId, initialData }: StepFormProps) {
   const [isInspectionSettingOpen, setIsInspectionSettingOpen] = useState(false);
   const [isInspectionPreviewOpen, setIsInspectionPreviewOpen] = useState(false);
 
-  const [isLoading, setIsLoading] = useState(false);
+  const [, setIsLoading] = useState(false);
 
   // 검사여부가 "사용"인지 확인
   const isInspectionEnabled = needsInspection === '사용';

src/components/process-management/actions.ts

@@ -69,7 +69,7 @@ interface ApiProcessItem {
   };
 }
 
-interface ApiResponse<T> {
+interface _ApiResponse<T> {
   success: boolean;
   message: string;
   data: T;