fix:차량일지 selectedYear/selectedMonth 참조 오류 수정

resources/views/finance/vehicle-logs.blade.php

@@ -395,7 +395,7 @@ className="px-3 py-2 border border-gray-300 text-gray-700 rounded-lg text-sm fon
                 <div className="bg-white rounded-xl border border-gray-200 p-6">
                     <p className="text-sm text-gray-500 mb-1">총 주행거리</p>
                     <p className="text-2xl font-bold text-gray-900">{formatNumber(totals.total_km)} km</p>
-                    <p className="text-xs text-gray-400 mt-1">{selectedYear}년 {selectedMonth}월</p>
+                    <p className="text-xs text-gray-400 mt-1">{startDate} ~ {endDate}</p>
                 </div>
             </div>