refactor(WEB): 코드 품질 개선 및 불필요 코드 제거

- 미사용 import/변수/console.log 대량 정리 (100+개 파일)
- ItemMasterContext 간소화 (미사용 로직 제거)
- IntegratedListTemplateV2 / UniversalListPage 개선
- 결재 컴포넌트(ApprovalBox, DraftBox, ReferenceBox) 정리
- HR 컴포넌트(급여/휴가/부서) 코드 간소화
- globals.css 스타일 정리 및 개선
- AuthenticatedLayout 개선
- middleware CSP 정리
- proxy route 불필요 로깅 제거

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/common/ScheduleCalendar/DayTimeView.tsx

@@ -2,7 +2,7 @@
 
 import { useMemo } from 'react';
 import { cn } from '@/components/ui/utils';
-import { formatDate, checkIsToday } from './utils';
+import { formatCalendarDate, checkIsToday } from './utils';
 import { EVENT_COLORS } from './types';
 import type { DayTimeViewProps, ScheduleEvent } from './types';
 import { format, parseISO } from 'date-fns';
@@ -22,7 +22,7 @@ export function DayTimeView({
   onEventClick,
 }: DayTimeViewProps) {
   const today = checkIsToday(currentDate);
-  const dayStr = formatDate(currentDate, 'yyyy-MM-dd');
+  const dayStr = formatCalendarDate(currentDate, 'yyyy-MM-dd');
   const weekdayLabel = format(currentDate, 'EEEE', { locale: ko });
 
   // 시간 슬롯 생성

src/components/common/ScheduleCalendar/WeekTimeView.tsx

@@ -2,7 +2,7 @@
 
 import { useMemo } from 'react';
 import { cn } from '@/components/ui/utils';
-import { getWeekDays, getWeekdayHeaders, formatDate, checkIsToday, isSameDate } from './utils';
+import { getWeekDays, getWeekdayHeaders, formatCalendarDate, checkIsToday, isSameDate } from './utils';
 import { EVENT_COLORS } from './types';
 import type { WeekTimeViewProps, ScheduleEvent } from './types';
 import { format, parseISO } from 'date-fns';
@@ -42,7 +42,7 @@ export function WeekTimeView({
     const map = new Map<string, { allDay: ScheduleEvent[]; timed: ScheduleEvent[] }>();
 
     weekDays.forEach((day) => {
-      const dateStr = formatDate(day, 'yyyy-MM-dd');
+      const dateStr = formatCalendarDate(day, 'yyyy-MM-dd');
       map.set(dateStr, { allDay: [], timed: [] });
     });
 
@@ -51,7 +51,7 @@ export function WeekTimeView({
       const eventEndDate = parseISO(event.endDate);
 
       weekDays.forEach((day) => {
-        const dateStr = formatDate(day, 'yyyy-MM-dd');
+        const dateStr = formatCalendarDate(day, 'yyyy-MM-dd');
         // 이벤트가 이 날짜를 포함하는지 확인
         if (day >= eventStartDate && day <= eventEndDate) {
           const bucket = map.get(dateStr);
@@ -134,7 +134,7 @@ export function WeekTimeView({
               <span className="text-[10px] text-muted-foreground">종일</span>
             </div>
             {weekDays.map((day, i) => {
-              const dateStr = formatDate(day, 'yyyy-MM-dd');
+              const dateStr = formatCalendarDate(day, 'yyyy-MM-dd');
               const allDayEvents = eventsByDate.get(dateStr)?.allDay || [];
               return (
                 <div
@@ -174,7 +174,7 @@ export function WeekTimeView({
             </div>
             {/* 요일별 셀 */}
             {weekDays.map((day, i) => {
-              const dateStr = formatDate(day, 'yyyy-MM-dd');
+              const dateStr = formatCalendarDate(day, 'yyyy-MM-dd');
               const timedEvents = eventsByDate.get(dateStr)?.timed || [];
               const slotEvents = timedEvents.filter((event) => {
                 if (!event.startTime) return false;

src/components/common/ScheduleCalendar/utils.ts

@@ -93,7 +93,7 @@ export function isSameDate(date1: Date | null, date2: Date): boolean {
 /**
  * 날짜 포맷
  */
-export function formatDate(date: Date, formatStr: string = 'yyyy-MM-dd'): string {
+export function formatCalendarDate(date: Date, formatStr: string = 'yyyy-MM-dd'): string {
   return format(date, formatStr, { locale: ko });
 }