feat: 엑셀 다운로드 전체 데이터 페이지별 순차 조회 방식으로 개선

- UniversalListPage: size=10000 단건 호출을 1000건씩 페이지 순회 방식으로 변경
- fetchAllUrl 우선순위를 clientSideFiltering보다 상위로 조정
- 첫 페이지에서 total 확인 후 나머지 페이지 병렬(Promise.all) 호출
- 10000건 초과 데이터도 누락 없이 다운로드 가능
- 근태현황: fetchAllUrl, fetchAllParams, mapResponse 추가

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/components/hr/AttendanceManagement/index.tsx

@@ -483,11 +483,63 @@ export function AttendanceManagement() {
 
     searchPlaceholder: '이름, 부서 검색...',
 
-    // 엑셀 다운로드 설정 (클라이언트 사이드 필터링이므로 filteredData 사용)
+    // 엑셀 다운로드 설정 (fetchAllUrl로 전체 데이터 조회)
     excelDownload: {
       columns: excelColumns,
       filename: '근태현황',
       sheetName: '근태',
+      fetchAllUrl: '/api/proxy/attendances',
+      fetchAllParams: () => {
+        const params: Record<string, string> = {};
+        if (startDate) params.date_from = startDate;
+        if (endDate) params.date_to = endDate;
+        return params;
+      },
+      mapResponse: (result: unknown) => {
+        const res = result as { data?: { data?: Record<string, unknown>[] } };
+        const items = res.data?.data ?? [];
+        return items.map((item) => {
+          const user = item.user as Record<string, unknown> | undefined;
+          const profiles = (user?.tenant_profiles ?? []) as Record<string, unknown>[];
+          const profile = profiles[0] as Record<string, unknown> | undefined;
+          const dept = profile?.department as Record<string, unknown> | undefined;
+          const legacyProfile = user?.tenant_profile as Record<string, unknown> | undefined;
+          const legacyDept = legacyProfile?.department as Record<string, unknown> | undefined;
+          const jsonDetails = (item.json_details ?? {}) as Record<string, unknown>;
+          const breakMins = item.break_minutes as number | null;
+          const overtimeMins = jsonDetails.overtime_minutes as number | undefined;
+
+          return {
+            id: String(item.id),
+            employeeId: String(item.user_id),
+            employeeName: (user?.name ?? '') as string,
+            department: (dept?.name ?? legacyDept?.name ?? '') as string,
+            position: (profile?.position_key ?? '') as string,
+            rank: ((legacyProfile?.rank ?? '') as string),
+            baseDate: item.base_date as string,
+            checkIn: (item.check_in ?? jsonDetails.check_in ?? null) as string | null,
+            checkOut: (item.check_out ?? jsonDetails.check_out ?? null) as string | null,
+            breakTime: breakMins != null
+              ? `${Math.floor(breakMins / 60)}:${(breakMins % 60).toString().padStart(2, '0')}`
+              : (jsonDetails.break_time as string || null),
+            overtimeHours: overtimeMins
+              ? (() => {
+                  const h = Math.floor(overtimeMins / 60);
+                  const m = overtimeMins % 60;
+                  if (h > 0 && m > 0) return `${h}시간 ${m}분`;
+                  if (h > 0) return `${h}시간`;
+                  return `${m}분`;
+                })()
+              : null,
+            workMinutes: (jsonDetails.work_minutes || null) as number | null,
+            reason: (jsonDetails.reason || null) as AttendanceRecord['reason'],
+            status: item.status as string,
+            remarks: (item.remarks ?? null) as string | null,
+            createdAt: item.created_at as string,
+            updatedAt: item.updated_at as string,
+          } as AttendanceRecord;
+        });
+      },
     },
 
     itemsPerPage: itemsPerPage,