fix: отображение количества участников лекции

frontend/src/views/student/CatalogView.vue

@@ -225,7 +225,7 @@ async function registerLecture(id: string) {
           </template>
           <template #seats="{ row }">
             <span :class="row.freeSeats === 0 ? 'badge badge-gray' : 'badge badge-green'">
-              {{ row.registrationClosed ? 'Запись закрыта' : `${row.freeSeats}/${row.totalSeats}` }}
+              {{ row.registrationClosed ? 'Запись закрыта' : `${row.enrolledSeats}/${row.totalSeats}` }}
             </span>
           </template>
           <template #action="{ row }">

frontend/src/views/student/LectureDetailView.vue

@@ -74,7 +74,7 @@ onMounted(async () => {
         </div>
         <div class="info-section">
           <h3>Места</h3>
-          <div class="info-value">Свободно {{ lecture.freeSeats }} из {{ lecture.totalSeats }}</div>
+          <div class="info-value">Записано {{ lecture.enrolledSeats }} из {{ lecture.totalSeats }}</div>
           <StatusBadge :status="lecture.registrationClosed ? 'closed' : lecture.freeSeats === 0 ? 'full' : 'open'" />
         </div>
         <div class="info-section">