feat: добавил ограничение записи на лекции

frontend/src/views/student/CatalogView.vue

@@ -8,6 +8,7 @@ import FilterChips from '@/components/ui/FilterChips.vue'
 import EmptyState from '@/components/ui/EmptyState.vue'
 import DataTable from '@/components/ui/DataTable.vue'
 import ModalDialog from '@/components/ui/ModalDialog.vue'
+import EnrollmentLimitModal from '@/components/ui/EnrollmentLimitModal.vue'
 
 const lecturesStore = useLecturesStore()
 const search = ref('')
@@ -19,6 +20,7 @@ const building = ref('Все корпуса')
 const format = ref<'all' | 'online' | 'offline'>('all')
 const onlyFree = ref(false)
 const filtersOpen = ref(false)
+const enrollmentLimitModalOpen = ref(false)
 const addToast = inject('addToast') as ((message: string, type?: 'success' | 'error' | 'info') => void) | undefined
 
 onMounted(() => {
@@ -101,11 +103,19 @@ const calendarGroups = computed(() => {
   return Object.entries(groups)
 })
 
+function isEnrollmentLimitError(err: unknown) {
+  return err instanceof Error && err.message.includes('Лимит записей достигнут')
+}
+
 async function registerLecture(id: string) {
   try {
     await lecturesStore.register(id)
     addToast?.('Вы записаны на лекцию.', 'success')
   } catch (err) {
+    if (isEnrollmentLimitError(err)) {
+      enrollmentLimitModalOpen.value = true
+      return
+    }
     addToast?.(err instanceof Error ? err.message : 'Не удалось записаться на лекцию.', 'error')
   }
 }
@@ -297,6 +307,8 @@ function isRegistered(id: string) {
         <button class="btn-primary" @click="filtersOpen = false">Применить</button>
       </template>
     </ModalDialog>
+
+    <EnrollmentLimitModal v-model="enrollmentLimitModalOpen" />
   </div>
 </template>