feat: добавил поддержку подписки на календарь и экспорт расписания лекций в формате .ics

frontend/src/api/index.ts

@@ -1,4 +1,4 @@
-import { apiRequest, extractItems } from './client'
+import { apiRequest, apiRequestBlob, extractItems } from './client'
 import type {
   AchievementDto,
   AuthResponse,
@@ -19,6 +19,7 @@ import type {
   UpdateReviewPromptRequest,
   UserAchievementDto,
   AdminDashboardStatsDto,
+  CalendarSubscriptionDto,
   CurrentUserDto,
   UserDto,
   UserQuery,
@@ -76,6 +77,11 @@ export const usersApi = {
     )
     return extractItems(payload)
   },
+  downloadMyEnrollmentsIcs: () => apiRequestBlob('/users/me/enrollments.ics'),
+  downloadEnrollmentIcs: (lectureId: string | number) =>
+    apiRequestBlob(`/users/me/enrollments/${lectureId}.ics`),
+  getCalendarSubscription: () =>
+    apiRequest<CalendarSubscriptionDto>('/users/me/enrollments/calendar-subscription'),
   async myAchievements() {
     const payload = await apiRequest<
       PagedResult<UserAchievementDto> | UserAchievementDto[] | AchievementDto[]