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">

frontend/src/views/teacher/TeacherDashboardView.vue

@@ -17,7 +17,7 @@ const teacherLectures = computed(() => {
   return owned.length ? owned : lecturesStore.all
 })
 const upcoming = computed(() => teacherLectures.value.filter(l => l.status !== 'completed').slice(0, 3))
-const enrolledTotal = computed(() => teacherLectures.value.reduce((sum, l) => sum + (l.totalSeats - l.freeSeats), 0))
+const enrolledTotal = computed(() => teacherLectures.value.reduce((sum, l) => sum + l.enrolledSeats, 0))
 const visibility = computed(() => (teacherLectures.value.length ? Math.min(100, Math.round(enrolledTotal.value * 4)) : 0))
 
 onMounted(() => {
@@ -60,7 +60,7 @@ onMounted(() => {
           <div>
             <div class="upcoming-title">{{ l.title }}</div>
             <div class="upcoming-meta">📅 {{ new Date(l.date).toLocaleDateString('ru-RU') }} · {{ l.time }}</div>
-            <div class="upcoming-meta">Записалось {{ l.totalSeats - l.freeSeats }} студентов</div>
+            <div class="upcoming-meta">Записалось {{ l.enrolledSeats }} студентов</div>
           </div>
           <button class="btn-secondary btn-sm" @click="router.push('/teacher/lectures')">Управлять</button>
         </div>

frontend/src/views/teacher/TeacherLecturesView.vue

@@ -24,7 +24,7 @@ const rows = computed(() => {
     title: l.title,
     date: `${new Date(l.date).toLocaleDateString('ru-RU')} · ${l.time}`,
     status: l.status ?? 'upcoming',
-    stats: `${l.totalSeats - l.freeSeats} / — / ${l.reviewCount}`,
+    stats: `${l.enrolledSeats} / — / ${l.reviewCount}`,
   }))
 })