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/approval/ApprovalBox/index.tsx

@@ -14,7 +14,6 @@ import {
 import { toast } from 'sonner';
 import {
   getInbox,
-  getInboxSummary,
   approveDocument,
   rejectDocument,
   approveDocumentsBulk,
@@ -80,17 +79,9 @@ import { isNextRedirectError } from '@/lib/utils/redirect-error';
 import { usePermission } from '@/hooks/usePermission';
 import { InspectionReportModal } from '@/components/production/WorkOrders/documents/InspectionReportModal';
 
-// ===== 통계 타입 =====
-interface InboxSummary {
-  total: number;
-  pending: number;
-  approved: number;
-  rejected: number;
-}
-
 export function ApprovalBox() {
   const router = useRouter();
-  const [isPending, startTransition] = useTransition();
+  const [, startTransition] = useTransition();
   const { canApprove } = usePermission();
 
   // ===== 상태 관리 =====
@@ -115,7 +106,7 @@ export function ApprovalBox() {
   const [isModalOpen, setIsModalOpen] = useState(false);
   const [selectedDocument, setSelectedDocument] = useState<ApprovalRecord | null>(null);
   const [modalData, setModalData] = useState<ProposalDocumentData | ExpenseReportDocumentData | ExpenseEstimateDocumentData | LinkedDocumentData | null>(null);
-  const [isModalLoading, setIsModalLoading] = useState(false);
+  const [, setIsModalLoading] = useState(false);
 
   // ===== 검사성적서 모달 상태 (work_order 연결 문서용) =====
   const [isInspectionModalOpen, setIsInspectionModalOpen] = useState(false);
@@ -390,7 +381,7 @@ export function ApprovalBox() {
               drafter,
             };
             break;
-          default:
+          default: {
             // 품의서
             const uploadedFileUrls = (formData.proposalData?.uploadedFiles || []).map(f =>
               `/api/proxy/files/${f.id}/download`
@@ -409,6 +400,7 @@ export function ApprovalBox() {
               drafter,
             };
             break;
+          }
         }
 
         setModalData(convertedData);
@@ -527,12 +519,12 @@ export function ApprovalBox() {
 
       columns: [
         { key: 'no', label: '번호', className: 'w-[60px] text-center' },
-        { key: 'documentNo', label: '문서번호' },
-        { key: 'approvalType', label: '문서유형' },
-        { key: 'title', label: '제목' },
-        { key: 'drafter', label: '기안자' },
-        { key: 'approver', label: '결재자' },
-        { key: 'draftDate', label: '기안일시' },
+        { key: 'documentNo', label: '문서번호', copyable: true },
+        { key: 'approvalType', label: '문서유형', copyable: true },
+        { key: 'title', label: '제목', copyable: true },
+        { key: 'drafter', label: '기안자', copyable: true },
+        { key: 'approver', label: '결재자', copyable: true },
+        { key: 'draftDate', label: '기안일시', copyable: true },
         { key: 'status', label: '상태', className: 'text-center' },
       ],
 

src/components/approval/DocumentCreate/ProposalForm.tsx

@@ -18,7 +18,7 @@ import {
   SelectValue,
 } from '@/components/ui/select';
 import { getClients } from '@/components/accounting/VendorManagement/actions';
-import type { ProposalData, UploadedFile } from './types';
+import type { ProposalData } from './types';
 
 // 거래처 옵션 타입
 interface ClientOption {

src/components/approval/DocumentCreate/actions.ts

@@ -26,12 +26,6 @@ import type {
 // API 응답 타입 정의
 // ============================================
 
-interface ApiResponse<T> {
-  success: boolean;
-  data: T;
-  message: string;
-}
-
 // 비용견적서 API 응답 타입
 interface ExpenseEstimateApiItem {
   id: number;

src/components/approval/DocumentDetail/DocumentDetailModalV2.tsx

@@ -6,7 +6,6 @@ import { ExpenseReportDocument } from './ExpenseReportDocument';
 import { ExpenseEstimateDocument } from './ExpenseEstimateDocument';
 import { LinkedDocumentContent } from './LinkedDocumentContent';
 import type {
-  DocumentType,
   DocumentDetailModalProps,
   ProposalDocumentData,
   ExpenseReportDocumentData,

src/components/approval/DocumentDetail/index.tsx

@@ -6,12 +6,6 @@ import {
   DialogTitle,
   VisuallyHidden,
 } from '@/components/ui/dialog';
-import {
-  DropdownMenu,
-  DropdownMenuContent,
-  DropdownMenuItem,
-  DropdownMenuTrigger,
-} from '@/components/ui/dropdown-menu';
 import { Button } from '@/components/ui/button';
 import {
   Copy,
@@ -19,12 +13,6 @@ import {
   X as XIcon,
   CheckCircle,
   Printer,
-  Share2,
-  ChevronDown,
-  FileText,
-  Mail,
-  Phone,
-  MessageCircle,
   Send,
 } from 'lucide-react';
 import { ProposalDocument } from './ProposalDocument';
@@ -32,7 +20,6 @@ import { ExpenseReportDocument } from './ExpenseReportDocument';
 import { ExpenseEstimateDocument } from './ExpenseEstimateDocument';
 import { printArea } from '@/lib/print-utils';
 import type {
-  DocumentType,
   DocumentDetailModalProps,
   ProposalDocumentData,
   ExpenseReportDocumentData,
@@ -53,8 +40,6 @@ export function DocumentDetailModal({
   onSubmit,
 }: DocumentDetailModalProps) {
   // 기안함 모드에서 임시저장 상태일 때만 수정/상신 가능
-  const canEdit = mode === 'inbox' || documentStatus === 'draft';
-  const canSubmit = mode === 'draft' && documentStatus === 'draft';
   const getDocumentTitle = () => {
     switch (documentType) {
       case 'proposal':
@@ -72,18 +57,6 @@ export function DocumentDetailModal({
     printArea({ title: `${getDocumentTitle()} 인쇄` });
   };
 
-  const handleSharePdf = () => {
-  };
-
-  const handleShareEmail = () => {
-  };
-
-  const handleShareFax = () => {
-  };
-
-  const handleShareKakao = () => {
-  };
-
   const renderDocument = () => {
     switch (documentType) {
       case 'proposal':

src/components/approval/DraftBox/index.tsx

@@ -9,7 +9,6 @@ import {
   Send,
   Trash2,
   Plus,
-  Bell,
 } from 'lucide-react';
 import { toast } from 'sonner';
 import {
@@ -49,7 +48,6 @@ import type {
 } from '@/components/approval/DocumentDetail/types';
 import type {
   DraftRecord,
-  DocumentStatus,
   Approver,
   SortOption,
   FilterOption,
@@ -73,7 +71,7 @@ interface DraftsSummary {
 
 export function DraftBox() {
   const router = useRouter();
-  const [isPending, startTransition] = useTransition();
+  const [, startTransition] = useTransition();
 
   // ===== 상태 관리 =====
   const [searchQuery, setSearchQuery] = useState('');
@@ -464,11 +462,11 @@ export function DraftBox() {
 
       columns: [
         { key: 'no', label: '번호', className: 'w-[60px] text-center' },
-        { key: 'documentNo', label: '문서번호' },
-        { key: 'documentType', label: '문서유형' },
-        { key: 'title', label: '제목' },
-        { key: 'approvers', label: '결재자' },
-        { key: 'draftDate', label: '기안일시' },
+        { key: 'documentNo', label: '문서번호', copyable: true },
+        { key: 'documentType', label: '문서유형', copyable: true },
+        { key: 'title', label: '제목', copyable: true },
+        { key: 'approvers', label: '결재자', copyable: true },
+        { key: 'draftDate', label: '기안일시', copyable: true },
         { key: 'status', label: '상태', className: 'text-center' },
       ],
 
@@ -624,7 +622,7 @@ export function DraftBox() {
       ),
 
       renderTableRow: (item, index, globalIndex, handlers) => {
-        const { isSelected, onToggle, onRowClick } = handlers;
+        const { isSelected, onToggle } = handlers;
 
         return (
           <TableRow

src/components/approval/ReferenceBox/index.tsx

@@ -33,7 +33,6 @@ import {
   type StatCard,
   type TabOption,
 } from '@/components/templates/UniversalListPage';
-import { DateRangeSelector } from '@/components/molecules/DateRangeSelector';
 import { ListMobileCard, InfoField } from '@/components/organisms/MobileCard';
 // import { DocumentDetailModal } from '@/components/approval/DocumentDetail';
 import { DocumentDetailModalV2 as DocumentDetailModal } from '@/components/approval/DocumentDetail';
@@ -63,7 +62,7 @@ interface ReferenceSummary {
 }
 
 export function ReferenceBox() {
-  const [isPending, startTransition] = useTransition();
+  const [, startTransition] = useTransition();
 
   // ===== 상태 관리 =====
   const [activeTab, setActiveTab] = useState<ReferenceTabType>('all');
@@ -152,14 +151,14 @@ export function ReferenceBox() {
   // 마운트 시 1회만 실행 (summary 로드)
   useEffect(() => {
     loadSummary();
-    // eslint-disable-next-line react-hooks/exhaustive-deps
+     
   }, []);
 
   // ===== 데이터 로드 (의존성 명시적 관리) =====
   // currentPage, searchQuery, filterOption, sortOption, activeTab 변경 시 데이터 재로드
   useEffect(() => {
     loadData();
-    // eslint-disable-next-line react-hooks/exhaustive-deps
+     
   }, [currentPage, searchQuery, filterOption, sortOption, activeTab]);
 
   // ===== 검색어/필터/탭 변경 시 페이지 초기화 =====
@@ -383,11 +382,11 @@ export function ReferenceBox() {
   // 문서번호, 문서유형, 제목, 기안자, 기안일시, 상태
   const tableColumns = useMemo(() => [
     { key: 'no', label: '번호', className: 'w-[60px] text-center' },
-    { key: 'documentNo', label: '문서번호' },
-    { key: 'approvalType', label: '문서유형' },
-    { key: 'title', label: '제목' },
-    { key: 'drafter', label: '기안자' },
-    { key: 'draftDate', label: '기안일시' },
+    { key: 'documentNo', label: '문서번호', copyable: true },
+    { key: 'approvalType', label: '문서유형', copyable: true },
+    { key: 'title', label: '제목', copyable: true },
+    { key: 'drafter', label: '기안자', copyable: true },
+    { key: 'draftDate', label: '기안일시', copyable: true },
     { key: 'status', label: '상태', className: 'text-center' },
   ], []);
 
@@ -513,7 +512,7 @@ export function ReferenceBox() {
     ),
 
     renderTableRow: (item, index, globalIndex, handlers) => {
-      const { isSelected, onToggle, onRowClick } = handlers;
+      const { isSelected, onToggle, onRowClick: _onRowClick } = handlers;
 
       return (
         <TableRow