Merge branch 'dev'

# Conflicts:
#	backend/UniVerse.Api/UniVerse.Api.csproj

README.md

@@ -1,295 +1,165 @@
 # UniVerse
 
-UniVerse - веб-платформа для открытых межнаправленческих лекций университета. Система помогает студентам находить занятия других направлений, записываться на них, получать напоминания, оставлять отзывы, а преподавателям и администраторам - видеть аналитику посещаемости и качества обратной связи.
+UniVerse — backend (ASP.NET Core) для университетской платформы расписания, лекций, отзывов и геймификации.
 
-Проект состоит из Vue 3 frontend, ASP.NET Core backend и PostgreSQL-хранилища. Backend предоставляет REST API, интегрируется с Microsoft Entra ID, Modeus API и OpenAI-compatible LLM, а frontend реализует отдельные сценарии для ролей `Student`, `Teacher` и `Admin`.
+[Документация API](backend/UniVerse.Api/openapi.json)  
+[Документация бекнда](docs/backend.md)  
 
-- [OpenAPI snapshot](backend/UniVerse.Api/openapi.json)
+## Что внутри
-- [Backend notes](docs/backend.md)
-- [Frontend E2E tests](docs/playwright-tests.md)
-- [Load testing](docs/load-testing-k6.md)
 
-## Возможности
+- Расписание/события и сущности: курсы, лекции, аудитории (locations)
+- Отзывы студентов с фоновым LLM-анализом (качество/тональность/теги)
+- Геймификация: XP/уровни, монеты, достижения
+- JWT-аутентификация и роли (`Admin`, `Teacher`, `Student`)
+- Swagger/OpenAPI в Development
 
-### Для студента
+## Технологии
 
-- Каталог открытых лекций с поиском, фильтрацией, карточками и деталями занятия.
+- .NET 10 / ASP.NET Core
-- Запись на лекцию и отмена записи с учетом лимитов мест и персонального лимита активных записей.
+- PostgreSQL + EF Core (Npgsql)
-- Личный дашборд: ближайшие лекции, прогресс уровня, XP, монеты, достижения и статистика.
+- Serilog
-- Мои лекции: список записей, скачивание `.ics` для одной лекции или всего расписания, ссылка календарной подписки.
+- Swagger (Swashbuckle)
-- Отзывы о лекциях с оценкой `Like`, `Neutral`, `Dislike`.
-- Уведомления и профиль пользователя.
 
-### Для преподавателя
+## Структура репозитория
 
-- Дашборд преподавателя по своим занятиям.
+Код backend лежит в папке `backend/` и собран в solution `backend/UniVerse.sln`:
-- Просмотр списка лекций и записей.
-- Аналитика отзывов: тональность, информативность, теги LLM и агрегированные показатели.
-- Работа с отзывами без раскрытия лишних персональных данных студентам.
 
-### Для администратора
+- `backend/UniVerse.Api` — Web API (контроллеры, middleware, background services)
-
+- `backend/UniVerse.Application` — DTO, интерфейсы сервисов, маппинги
-- Административная панель со статистикой пользователей, лекций, записей и ожидающих LLM-анализа отзывов.
+- `backend/UniVerse.Domain` — доменные сущности/enum/исключения
-- Управление пользователями: роли `Student`, `Teacher`, `Admin`, блокировка и разблокировка аккаунтов.
+- `backend/UniVerse.Infrastructure` — EF Core, миграции, реализации сервисов, внешние клиенты
-- Управление лекциями и создание новых занятий.
-- Синхронизация расписания, аудиторий и преподавателей из Modeus.
-- Модерация отзывов, повторный запуск LLM-анализа и настройка промпта.
-- Управление курсами, тегами, локациями и достижениями через API.
-
-### Платформенные функции
-
-- Microsoft Entra ID login и dev-login для локальной разработки.
-- JWT access token и refresh flow через cookie.
-- Ролевая защита маршрутов frontend и endpoint-level авторизация backend.
-- Фоновая очередь анализа отзывов через LLM.
-- Геймификация: XP, уровни, монеты, достижения и транзакции.
-- Email-уведомления и планировщик Quartz.
-- Rate limiting, Serilog, Prometheus metrics и Swagger UI в Development.
-- Aspire AppHost для совместного локального запуска API и Vite frontend.
-- Docker Compose для production-окружения с backend, frontend и PostgreSQL.
-
-## Архитектура
-
-```mermaid
-flowchart LR
-    Student[Student UI] --> Frontend[Vue 3 frontend]
-    Teacher[Teacher UI] --> Frontend
-    Admin[Admin UI] --> Frontend
-
-    Frontend -->|/api/v1 JSON| Api[ASP.NET Core Web API]
-    Api --> Auth[Auth and RBAC]
-    Api --> App[Application services]
-    App --> Domain[Domain model]
-    App --> Infra[Infrastructure]
-    Infra --> Db[(PostgreSQL)]
-    Infra --> Llm[OpenAI-compatible LLM]
-    Infra --> Modeus[Modeus schedule API]
-    Infra --> Mail[SMTP email]
-
-    Api --> Quartz[Quartz jobs]
-    Quartz --> Mail
-    Api --> Metrics[Prometheus /metrics]
-```
-
-Backend следует Clean Architecture:
-
-- `UniVerse.Api` - controllers, middleware, Swagger, DI, background services.
-- `UniVerse.Application` - DTO, interfaces, service contracts, mappings, prompts.
-- `UniVerse.Domain` - entities, enums, domain exceptions, domain services.
-- `UniVerse.Infrastructure` - EF Core, migrations, external clients, notification and business service implementations.
-- `UniVerse.AppHost` - Aspire host для локального запуска API и frontend.
-- `UniVerse.Api.Tests` - unit и integration tests.
-
-Frontend построен на Vue 3, TypeScript, Vite, Pinia и Vue Router:
-
-- `src/views/student` - кабинет студента, каталог, карточка лекции, мои лекции, отзывы, профиль, уведомления.
-- `src/views/teacher` - кабинет преподавателя, лекции, аналитика.
-- `src/views/admin` - дашборд, пользователи, лекции, отзывы.
-- `src/api` - typed API client, DTO-типы и мапперы.
-- `src/components/ui` и `src/components/layout` - переиспользуемые UI и layout-компоненты.
-
-## Сценарий записи и анализа отзыва
-
-```mermaid
-sequenceDiagram
-    actor S as Student
-    participant UI as Vue frontend
-    participant API as UniVerse API
-    participant DB as PostgreSQL
-    participant Q as ReviewAnalysisQueue
-    participant LLM as LLM API
-    participant G as GamificationService
-
-    S->>UI: Выбирает открытую лекцию
-    UI->>API: POST /api/v1/lectures/{id}/enroll
-    API->>DB: Проверяет лимиты и сохраняет запись
-    API-->>UI: 204 No Content
-    S->>UI: Оставляет отзыв
-    UI->>API: POST /api/v1/reviews
-    API->>DB: Сохраняет отзыв со статусом Pending
-    API->>Q: Ставит отзыв в очередь анализа
-    Q->>LLM: Анализ качества, тональности и тегов
-    LLM-->>Q: Результат анализа
-    Q->>DB: Обновляет отзыв
-    Q->>G: Начисляет XP, монеты и достижения
-    G->>DB: Сохраняет транзакции и награды
-```
-
-Основные группы таблиц:
-
-- Пользователи и доступ: `users`, `user_roles`, `student_profiles`, `teacher_profiles`, `refresh_tokens`.
-- Расписание: `courses`, `lectures`, `locations`, `tags`, `course_tags`.
-- Участие и обратная связь: `lecture_enrollments`, `reviews`, `review_prompt_settings`.
-- Геймификация: `achievements`, `user_achievements`, `coin_transactions`, `level_thresholds`.
-- Уведомления: `user_notifications`.
-
-## API
-
-Базовый префикс: `/api/v1`.
-
-- `/auth` - Microsoft login, dev-login, refresh, logout, текущий пользователь.
-- `/users` - профиль, статистика, роли, активность, записи, достижения, транзакции, `.ics`.
-- `/lectures` - каталог лекций, CRUD, запись, посещаемость, отзывы по лекции.
-- `/reviews` - создание, список, модерация, повторный анализ, настройка LLM-промпта.
-- `/courses` - курсы и привязка тегов.
-- `/tags` - теги и дерево тегов.
-- `/locations` - аудитории и локации.
-- `/achievements` - каталог достижений.
-- `/notifications` - уведомления, отметка прочтения, отправка и планирование.
-- `/sync` - синхронизация расписания, аудиторий и преподавателей из Modeus.
-
-В Development Swagger UI доступен по адресу `http://localhost:5019/api/docs`.
-
-## Стек
-
-### Frontend
-
-- Vue 3, TypeScript, Vite.
-- Pinia, Vue Router.
-- Playwright E2E tests.
-- Nginx для production-раздачи и проксирования.
-
-### Backend
-
-- .NET 10, ASP.NET Core Web API.
-- EF Core 10, Npgsql, PostgreSQL.
-- Swashbuckle/OpenAPI.
-- Serilog, Prometheus, ASP.NET Core Rate Limiting.
-- Quartz для отложенных уведомлений.
-- Aspire AppHost.
-- xUnit, NSubstitute, WebApplicationFactory.
-
-### Интеграции
-
-- Microsoft Entra ID.
-- Modeus schedule API.
-- OpenAI-compatible LLM API.
-- SMTP email.
 
 ## Требования
 
-- .NET SDK 10.x.
+- .NET SDK 10 (`dotnet --version` должен показать `10.x`)
-- Node.js `^20.19.0 || >=22.12.0`.
+- PostgreSQL 14+ (или Docker для поднятия Postgres)
-- pnpm.
-- PostgreSQL 17+ или Docker.
-- Для production - Docker Engine и Docker Compose.
 
 ## Конфигурация
 
-Backend читает настройки из `backend/UniVerse.Api/appsettings.json`, `appsettings.Development.json` и переменных окружения в формате `Section__Key`.
+Основные настройки лежат в `backend/UniVerse.Api/appsettings.json`:
 
-Основные секции:
+- `ConnectionStrings:DefaultConnection` — строка подключения к Postgres
+- `Jwt:*` — секрет/issuer/audience и сроки жизни токенов
+- `Cors:Origins` — origin’ы фронтенда
+- `Llm:*` — настройки LLM (OpenAI-compatible)
+- `ModeusApi:*` — настройки интеграции с Modeus
 
-- `ConnectionStrings:DefaultConnection` - подключение к PostgreSQL.
+Можно переопределять через переменные окружения в формате `Section__Key`, например:
-- `Jwt:*` - issuer, audience, secret и сроки жизни токенов.
-- `AzureAd:*` - Microsoft Entra ID.
-- `Cors:Origins` - разрешенные origin frontend.
-- `RateLimiting:*` - глобальный fixed-window limiter.
-- `Llm:*` - base URL, API key, model и параметры анализа отзывов.
-- `ModeusApi:*` - base URL, API key и timeout.
-- `Email:Smtp:*` - SMTP-настройки для уведомлений.
 
-Frontend использует переменные:
+- `ConnectionStrings__DefaultConnection`
+- `Jwt__Secret`
+- `Llm__ApiKey`
+- `ModeusApi__ApiKey`
 
-- `VITE_API_BASE_URL` - базовый адрес API, по умолчанию `/api`.
+## Быстрый старт (локально)
-- `VITE_API_PROXY_TARGET` - target для Vite proxy при запуске через Aspire.
-- `VITE_AUTH_RETURN_URL` - frontend callback URL, по умолчанию `/auth/callback`.
 
-## Быстрый старт
+1) Поднять Postgres (пример через Docker):
-
-### 1. Установить зависимости frontend
-
-```bash
-pnpm -C frontend install
-```
-
-### 2. Поднять PostgreSQL
 
 ```bash
 docker run --rm --name universe-postgres \
-  -e POSTGRES_DB=universe \
+	-e POSTGRES_DB=universe \
-  -e POSTGRES_USER=postgres \
+	-e POSTGRES_USER=postgres \
-  -e POSTGRES_PASSWORD=postgres \
+	-e POSTGRES_PASSWORD=postgres \
-  -p 5432:5432 \
+	-p 5432:5432 \
-  postgres:18
+	postgres:18
 ```
 
-### 3. Применить миграции
+2) Применить миграции (первый раз потребуется `dotnet-ef`):
 
 ```bash
 dotnet tool install --global dotnet-ef
 
 cd backend
 dotnet ef database update \
-  --project UniVerse.Infrastructure \
+	--project UniVerse.Infrastructure \
-  --startup-project UniVerse.Api
+	--startup-project UniVerse.Api
 ```
 
-### 4. Запустить backend
+3) Запустить API:
 
 ```bash
-dotnet run --project backend/UniVerse.Api --launch-profile http
+cd backend
+dotnet run --project UniVerse.Api --launch-profile http
 ```
 
-API по умолчанию слушает `http://localhost:5019`.
+По умолчанию (профиль `http`) API поднимется на `http://localhost:5019`.
+Swagger UI доступен в Development по адресу: `http://localhost:5019/swagger`.
 
-### 5. Запустить frontend
+## Запуск в Docker
+
+В `backend/UniVerse.Api/Dockerfile` настроена сборка контейнера API.
 
 ```bash
-pnpm -C frontend dev
+cd backend
+docker build -f UniVerse.Api/Dockerfile -t universe-api .
+
+docker run --rm -p 8080:8080 \
+	-e ASPNETCORE_URLS=http://+:8080 \
+	-e ConnectionStrings__DefaultConnection="Host=host.docker.internal;Port=5432;Database=universe;Username=postgres;Password=postgres" \
+	universe-api
 ```
 
-Vite frontend по умолчанию слушает `http://localhost:5173` и проксирует `/api` на `http://localhost:5019`.
+Примечание: на Linux `host.docker.internal` может быть недоступен — проще запускать Postgres тоже в Docker и соединять контейнеры в одной сети.
 
-## Запуск через Aspire
+## Аутентификация
 
-Aspire AppHost запускает API и Vite frontend вместе:
+- `POST /api/v1/auth/login/dev` — дев-логин (только в `Development`). Удобно для локальной разработки.
+- `GET /api/v1/auth/login/microsoft` — старт входа через Microsoft Entra ID (бэкенд сам делает редирект на Microsoft).
+- `GET /api/v1/auth/callback/microsoft` — callback, куда Microsoft возвращает `code`.
+- `POST /api/v1/auth/login/microsoft` — обмен `authorizationCode` на токены (полезно для интеграций/ручных тестов). Тело: `{ "authorizationCode": "...", "redirectUri"?: "..." }`.
+- `POST /api/v1/auth/refresh`, `POST /api/v1/auth/logout`, `GET /api/v1/auth/me`
 
-```bash
+Для Microsoft Entra ID нужны настройки (через env или appsettings): `AzureAd:TenantId`, `AzureAd:ClientId`, `AzureAd:ClientSecret` (и при необходимости `AzureAd:Instance`, `AzureAd:RedirectUri`, `AzureAd:PostLoginRedirectUri`).
-pnpm -C frontend install
-dotnet run --project backend/UniVerse.AppHost/UniVerse.AppHost.csproj
-```
 
-Frontend обычно доступен на `http://localhost:5173`. Target API передается во frontend через `VITE_API_PROXY_TARGET`.
+Большинство методов API защищены `[Authorize]`.
 
-## Docker Compose
+## Фоновый LLM-анализ отзывов
 
-Production compose описан в `docker-compose-prod.yml`:
+Сервис `LlmProcessingBackgroundService` раз в ~2 минуты берёт отзывы со статусом `Pending` и прогоняет через LLM-клиент.
+LLM-ключ задаётся через `Llm:ApiKey`.
 
-- `app` - ASP.NET Core backend.
+Если ключ не задан или внешний сервис недоступен — анализ будет ретраиться, а ошибки логироваться.
-- `frontend` - собранный Vue frontend и Nginx.
-- `db` - PostgreSQL.
 
-Перед запуском задайте переменные окружения для PostgreSQL, JWT, Microsoft auth, CORS и внешних интеграций:
+## Интеграция с Modeus
 
-```bash
+Эндпоинты синхронизации доступны только администратору:
-docker compose -f docker-compose-prod.yml up -d
-```
 
-Тестовый compose находится в `docker-compose-test.yml`.
+- `POST /api/v1/sync/schedule`
+- `POST /api/v1/sync/rooms`
+- `POST /api/v1/sync/employees`
+- `GET /api/v1/sync/status`
+
+Ключ (если нужен) задаётся через `ModeusApi:ApiKey`.
+
+## Карта API (high-level)
+
+Базовый префикс: `/api/v1`.
+
+- `/auth` — логин/refresh/logout/me
+- `/users` — профиль/статистика/достижения/транзакции (часть методов — только `Admin`)
+- `/courses` — курсы и теги (CRUD в основном для `Admin`)
+- `/lectures` — лекции, записи, посещаемость, отзывы
+- `/reviews` — отзывы (создание студентом; модерация/реанализ для `Admin`)
+- `/tags` — теги + дерево тегов
+- `/locations` — аудитории/локации
+- `/achievements` — достижения
+- `/sync` — синхронизация с внешним расписанием (только `Admin`)
+
+Точные схемы запросов/ответов удобнее смотреть в Swagger.
 
 ## Тестирование
 
-Backend:
+В проекте настроено модульное и интеграционное тестирование (папка `backend/UniVerse.Api.Tests`):
+
+- **xUnit** в качестве основного фреймворка для тестирования.
+- **NSubstitute** для создания заглушек (моков) зависимостей сервисов.
+- Используется `WebApplicationFactory` (`ApiWebApplicationFactory.cs`) для поднятия интеграционного тестового сервера с подменой БД на `InMemory` и отключенными фоновыми сервисами (например, LLM-интеграциями) для изоляции.
+- Реализованы полные тесты ролевой модели и авторизации (`EndpointAuthorizationTests.cs`), надежно проверяющие все API-конечные точки на политики доступа от имени различных ролей (`Admin`, `Teacher`, `Student`, `Anonymous`).
+
+Запуск тестов:
 
 ```bash
-dotnet test backend/UniVerse.sln
+cd backend
+dotnet test
 ```
 
-Frontend type-check и production build:
-
-```bash
-pnpm -C frontend build
-```
-
-Frontend E2E с mock API:
-
-```bash
-pnpm -C frontend test:e2e
-```
-
-Load testing helper:
-
-```bash
-node frontend/scripts/loadtest-endpoints.js
-```

backend/UniVerse.Api.Tests/Application/MappingExtensionsTests.cs

@@ -53,7 +53,6 @@ public class MappingExtensionsTests
             EndsAt = startsAt.AddHours(2),
             IsOpen = true,
             MaxEnrollments = 25,
-            MandatoryAttendeesCount = 30,
             Enrollments =
             [
                 new LectureEnrollment { UserId = 1 },
@@ -67,7 +66,7 @@ public class MappingExtensionsTests
         Assert.Equal("", dto.CourseName);
         Assert.Null(dto.TeacherName);
         Assert.Null(dto.LocationName);
-        Assert.Equal(32, dto.EnrollmentsCount);
+        Assert.Equal(2, dto.EnrollmentsCount);
         Assert.True(dto.IsEnrolled);
         Assert.False(detail.IsEnrolled);
     }

backend/UniVerse.Api.Tests/Authorization/EndpointAuthorizationTests.cs

@@ -47,9 +47,6 @@ public class EndpointAuthorizationTests : IClassFixture<ApiWebApplicationFactory
             body: """{"displayName":"Test","avatarUrl":null}""");
         yield return E("users/me/stats [AnyAuth]",         "GET",    "api/v1/users/me/stats", "Student");
         yield return E("users/me/enrollments [AnyAuth]",   "GET",    "api/v1/users/me/enrollments", "Student");
-        yield return E("users/me/enrollments/calendar-subscription [AnyAuth]", "GET", "api/v1/users/me/enrollments/calendar-subscription", "Student");
-        yield return E("users/me/enrollments.ics [AnyAuth]", "GET",  "api/v1/users/me/enrollments.ics", "Student");
-        yield return E("users/me/enrollments/{id}.ics [AnyAuth]", "GET", "api/v1/users/me/enrollments/1.ics", "Student");
         yield return E("users/me/reviews [AnyAuth]",       "GET",    "api/v1/users/me/reviews", "Student");
         yield return E("users/me/achievements [AnyAuth]",  "GET",    "api/v1/users/me/achievements", "Student");
         yield return E("users/me/transactions [AnyAuth]",  "GET",    "api/v1/users/me/transactions", "Student");
@@ -195,7 +192,6 @@ public class EndpointAuthorizationTests : IClassFixture<ApiWebApplicationFactory
         // dev login доступен в окружении Development
         yield return new object[] { "auth/login/dev POST", "POST", "api/v1/auth/login/dev",
             """{"email":"test@test.com","displayName":"Test","role":"Student"}""" };
-        yield return new object[] { "users/calendar/enrollments/{token}.ics GET", "GET", "api/v1/users/calendar/enrollments/bad-token.ics" };
         // refresh читает из cookie — возвращает 401, если нет cookie, но это не 401 от промежуточного ПО авторизации
         // (он возвращает 401 явно в теле действия, что отличается от Auth Challenge)
         // Мы тестируем это отдельно, чтобы убедиться, что заголовок JWT не требуется

backend/UniVerse.Api.Tests/Helpers/ApiWebApplicationFactory.cs

@@ -20,7 +20,6 @@ using UniVerse.Application.DTOs.Tags;
 using UniVerse.Application.DTOs.Users;
 using UniVerse.Application.Interfaces;
 using UniVerse.Domain.Enums;
-using UniVerse.Domain.Exceptions;
 using UniVerse.Infrastructure.Data;
 
 namespace UniVerse.Api.Tests.Helpers;
@@ -178,13 +177,6 @@ public class ApiWebApplicationFactory : WebApplicationFactory<Program>
             3,
             [new EnrollmentSlotRuleDto(1, 3), new EnrollmentSlotRuleDto(3, 5), new EnrollmentSlotRuleDto(4, 7)]));
         stub.GetEnrollmentsAsync(Arg.Any<int>(), Arg.Any<PaginationRequest>()).Returns(pagedLectures);
-        stub.GetMyEnrollmentsIcsAsync(Arg.Any<int>()).Returns("BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n");
-        stub.GetEnrollmentIcsAsync(Arg.Any<int>(), Arg.Any<int>()).Returns("BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n");
-        stub.GetCalendarSubscriptionTokenAsync(Arg.Any<int>()).Returns("test-token");
-        stub.GetEnrollmentsIcsBySubscriptionTokenAsync("bad-token")
-            .Returns(Task.FromException<string>(new ForbiddenException("Invalid calendar subscription token.")));
-        stub.GetEnrollmentsIcsBySubscriptionTokenAsync(Arg.Is<string>(token => token != "bad-token"))
-            .Returns(Task.FromResult("BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n"));
         stub.GetAllAsync(Arg.Any<UserFilterRequest>()).Returns(pagedUsers);
         stub.SetRolesAsync(Arg.Any<int>(), Arg.Any<IReadOnlyCollection<UserRole>>()).Returns(Task.CompletedTask);
         stub.SetActiveAsync(Arg.Any<int>(), Arg.Any<bool>()).Returns(Task.CompletedTask);

backend/UniVerse.Api.Tests/Lectures/LectureServiceTests.cs

@@ -166,29 +166,6 @@ public class LectureServiceTests
         Assert.True(await db.LectureEnrollments.AnyAsync(e => e.LectureId == 100 && e.UserId == 1));
     }
 
-    [Fact]
-    public async Task EnrollAsync_CountsMandatoryAttendeesTowardLectureCapacity()
-    {
-        await using var db = CreateDbContext();
-        var gamification = Substitute.For<IGamificationService>();
-        gamification.CalculateLevelAsync(Arg.Any<int>()).Returns(1);
-        var service = new LectureService(db, gamification, Substitute.For<INotificationScheduler>());
-        var lecture = Lecture(1, DateTime.UtcNow.AddDays(1));
-        lecture.MaxEnrollments = 31;
-        lecture.MandatoryAttendeesCount = 30;
-
-        db.Users.AddRange(
-            new User { Id = 1, Email = "first@test.local" },
-            new User { Id = 2, Email = "second@test.local" });
-        db.Courses.Add(new Course { Id = 1, Name = "Course" });
-        db.Lectures.Add(lecture);
-        await db.SaveChangesAsync();
-
-        await service.EnrollAsync(1, 1);
-
-        await Assert.ThrowsAsync<ConflictException>(() => service.EnrollAsync(1, 2));
-    }
-
     [Fact]
     public async Task UnenrollAsync_CancelsLectureReminders()
     {

backend/UniVerse.Api.Tests/RateLimiting/RateLimitingTests.cs

@@ -1,37 +0,0 @@
-using System.Net;
-using Microsoft.AspNetCore.Mvc.Testing;
-using Microsoft.Extensions.Configuration;
-using UniVerse.Api.Tests.Helpers;
-using Xunit;
-
-namespace UniVerse.Api.Tests.RateLimiting;
-
-public class RateLimitingTests
-{
-    [Fact]
-    public async Task GlobalRateLimiter_Returns429_WhenPartitionExceedsLimit()
-    {
-        await using var factory = new ApiWebApplicationFactory()
-            .WithWebHostBuilder(builder =>
-            {
-                builder.ConfigureAppConfiguration((_, config) =>
-                {
-                    config.AddInMemoryCollection(new Dictionary<string, string?>
-                    {
-                        ["RateLimiting:PermitLimit"] = "1",
-                        ["RateLimiting:WindowSeconds"] = "60",
-                        ["RateLimiting:QueueLimit"] = "0"
-                    });
-                });
-            });
-
-        using var client = factory.CreateClient();
-        client.DefaultRequestHeaders.Add("Authorization", TestJwtFactory.BearerHeader("Student"));
-
-        using var firstResponse = await client.GetAsync("api/v1/tags");
-        using var secondResponse = await client.GetAsync("api/v1/tags");
-
-        Assert.NotEqual(HttpStatusCode.TooManyRequests, firstResponse.StatusCode);
-        Assert.Equal(HttpStatusCode.TooManyRequests, secondResponse.StatusCode);
-    }
-}

backend/UniVerse.Api.Tests/Sync/ModeusApiClientTests.cs

@@ -1,62 +0,0 @@
-using System.Net;
-using System.Text.Json;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Logging.Abstractions;
-using UniVerse.Application.DTOs.Sync;
-using UniVerse.Infrastructure.ExternalServices;
-using Xunit;
-
-namespace UniVerse.Api.Tests.Sync;
-
-public class ModeusApiClientTests
-{
-    [Fact]
-    public async Task SearchEventsAsync_RequestsIctisEndpointWithCounts()
-    {
-        var handler = new CapturingHandler();
-        var http = new HttpClient(handler)
-        {
-            BaseAddress = new Uri("https://schedule.test")
-        };
-        var config = new ConfigurationBuilder().Build();
-        var client = new ModeusApiClient(http, config, NullLogger<ModeusApiClient>.Instance);
-
-        await client.SearchEventsAsync(new SyncScheduleRequest(
-            SpecialtyCode: ["09.03.04"],
-            TimeMin: new DateTime(2026, 4, 30, 21, 0, 0, DateTimeKind.Utc),
-            TimeMax: new DateTime(2026, 6, 13, 20, 59, 0, DateTimeKind.Utc),
-            TypeId: ["LECT"],
-            Size: 50));
-
-        Assert.Equal(HttpMethod.Post, handler.RequestMethod);
-        Assert.Equal("/api/ictis?includeCounts=true", handler.RequestPathAndQuery);
-        Assert.NotNull(handler.RequestBody);
-        using var body = JsonDocument.Parse(handler.RequestBody);
-        Assert.Equal(50, body.RootElement.GetProperty("size").GetInt32());
-        Assert.Equal("09.03.04", body.RootElement.GetProperty("specialtyCode")[0].GetString());
-        Assert.Equal("LECT", body.RootElement.GetProperty("typeId")[0].GetString());
-    }
-
-    private sealed class CapturingHandler : HttpMessageHandler
-    {
-        public HttpMethod? RequestMethod { get; private set; }
-        public string? RequestPathAndQuery { get; private set; }
-        public string? RequestBody { get; private set; }
-
-        protected override async Task<HttpResponseMessage> SendAsync(
-            HttpRequestMessage request,
-            CancellationToken cancellationToken)
-        {
-            RequestMethod = request.Method;
-            RequestPathAndQuery = request.RequestUri?.PathAndQuery;
-            RequestBody = request.Content is null
-                ? null
-                : await request.Content.ReadAsStringAsync(cancellationToken);
-
-            return new HttpResponseMessage(HttpStatusCode.OK)
-            {
-                Content = new StringContent("""{"events":[]}""")
-            };
-        }
-    }
-}

backend/UniVerse.Api.Tests/Sync/ScheduleSyncServiceTests.cs

@@ -129,56 +129,6 @@ public class ScheduleSyncServiceTests
         Assert.Equal(48, lecture.MaxEnrollments);
     }
 
-    [Fact]
-    public async Task SyncScheduleAsync_SavesMandatoryAttendeesFromIctisStats()
-    {
-        await using var db = CreateDbContext();
-        var modeus = Substitute.For<IModeusApiClient>();
-        modeus.SearchEventsAsync(Arg.Any<SyncScheduleRequest>())
-            .Returns(new ModeusEventsResponse
-            {
-                Embedded = new ModeusEventsEmbedded
-                {
-                    Events =
-                    [
-                        new ModeusEvent
-                        {
-                            Id = "event-1",
-                            Name = "Open lecture",
-                            StartsAt = new DateTime(2026, 5, 13, 9, 0, 0, DateTimeKind.Utc),
-                            EndsAt = new DateTime(2026, 5, 13, 10, 30, 0, DateTimeKind.Utc),
-                            IctisStats = new ModeusIctisStats(StudentCount: 30, TeacherCount: 1)
-                        }
-                    ],
-                    EventRooms =
-                    [
-                        new ModeusEventRoom
-                        {
-                            Links = new ModeusEventRoomLinks
-                            {
-                                Event = new ModeusHrefLink("/events/event-1"),
-                                Room = new ModeusHrefLink("/rooms/room-1")
-                            }
-                        }
-                    ],
-                    Rooms =
-                    [
-                        new ModeusRoom("room-1", "Room 101", "101", null, TotalCapacity: 120, WorkingCapacity: 120)
-                    ]
-                }
-            });
-
-        var service = new ScheduleSyncService(db, modeus, NullLogger<ScheduleSyncService>.Instance);
-
-        var result = await service.SyncScheduleAsync(new SyncScheduleRequest(null, null, null, null));
-
-        var lecture = await db.Lectures.SingleAsync();
-        Assert.Null(result.Error);
-        Assert.Equal(1, result.Created);
-        Assert.Equal(120, lecture.MaxEnrollments);
-        Assert.Equal(31, lecture.MandatoryAttendeesCount);
-    }
-
     [Fact]
     public async Task SyncScheduleAsync_UsesModeusEventAttendeeTeacher()
     {

backend/UniVerse.Api.Tests/UniVerse.Api.Tests.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="NSubstitute" Version="5.3.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>

backend/UniVerse.Api.Tests/Users/UserServiceTests.cs

@@ -1,5 +1,4 @@
 using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Logging.Abstractions;
 using NSubstitute;
 using UniVerse.Application.DTOs.Notifications;
@@ -194,56 +193,6 @@ public class UserServiceTests
         Assert.Equal(2, Assert.Single(result.Items).Id);
     }
 
-    [Fact]
-    public async Task CalendarSubscriptionToken_Roundtrip_ReturnsUserEnrollmentsIcs()
-    {
-        await using var db = CreateDbContext();
-        var startsAt = new DateTime(2026, 1, 10, 9, 0, 0, DateTimeKind.Utc);
-        db.Users.Add(new User { Id = 1, Email = "student@test.local" });
-        db.Courses.Add(new Course { Id = 1, Name = "Course" });
-        db.Lectures.Add(Lecture(1, startsAt));
-        db.LectureEnrollments.Add(new LectureEnrollment { LectureId = 1, UserId = 1 });
-        await db.SaveChangesAsync();
-        var service = CreateService(db);
-
-        var token = await service.GetCalendarSubscriptionTokenAsync(1);
-        var ics = await service.GetEnrollmentsIcsBySubscriptionTokenAsync(token);
-
-        Assert.Contains("BEGIN:VCALENDAR", ics);
-        Assert.Contains("Lecture 1", ics);
-    }
-
-    [Fact]
-    public async Task CalendarSubscriptionToken_RejectsTamperedToken()
-    {
-        await using var db = CreateDbContext();
-        db.Users.Add(new User { Id = 1, Email = "student@test.local" });
-        await db.SaveChangesAsync();
-        var service = CreateService(db);
-        var token = await service.GetCalendarSubscriptionTokenAsync(1);
-        var tampered = token[..^1] + (token[^1] == 'A' ? 'B' : 'A');
-
-        await Assert.ThrowsAsync<ForbiddenException>(() =>
-            service.GetEnrollmentsIcsBySubscriptionTokenAsync(tampered));
-    }
-
-    [Fact]
-    public async Task GetEnrollmentIcsAsync_ReturnsLectureIcsWithoutEnrollment()
-    {
-        await using var db = CreateDbContext();
-        var startsAt = new DateTime(2026, 2, 10, 9, 0, 0, DateTimeKind.Utc);
-        db.Users.Add(new User { Id = 1, Email = "student@test.local" });
-        db.Courses.Add(new Course { Id = 1, Name = "Course" });
-        db.Lectures.Add(Lecture(1853, startsAt));
-        await db.SaveChangesAsync();
-        var service = CreateService(db);
-
-        var ics = await service.GetEnrollmentIcsAsync(1, 1853);
-
-        Assert.Contains("BEGIN:VCALENDAR", ics);
-        Assert.Contains("Lecture 1853", ics);
-    }
-
     private static AppDbContext CreateDbContext()
     {
         var options = new DbContextOptionsBuilder<AppDbContext>()
@@ -266,13 +215,7 @@ public class UserServiceTests
             .Returns(Task.CompletedTask);
 
         var gamification = new GamificationService(db, notifications, NullLogger<GamificationService>.Instance);
-        var config = new ConfigurationBuilder()
+        return new UserService(db, gamification);
-            .AddInMemoryCollection(new Dictionary<string, string?>
-            {
-                ["Jwt:Secret"] = "test-calendar-subscription-secret-32chars"
-            })
-            .Build();
-        return new UserService(db, gamification, config);
     }
 
     private static void SeedLevelThresholds(AppDbContext db)

backend/UniVerse.Api/Controllers/UsersController.cs

@@ -5,7 +5,6 @@ using UniVerse.Application.DTOs.Users;
 using UniVerse.Application.Interfaces;
 using UniVerse.Domain.Enums;
 using System.Security.Claims;
-using System.Text;
 
 namespace UniVerse.Api.Controllers;
 
@@ -84,52 +83,6 @@ public class UsersController : ControllerBase
     public async Task<ActionResult> MyEnrollments([FromQuery] PaginationRequest pagination) =>
         Ok(await _users.GetEnrollmentsAsync(CurrentUserId, pagination));
 
-    [HttpGet("me/enrollments/calendar-subscription")]
-    [ProducesResponseType(typeof(CalendarSubscriptionDto), StatusCodes.Status200OK)]
-    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
-    public async Task<ActionResult<CalendarSubscriptionDto>> CalendarSubscription()
-    {
-        var token = await _users.GetCalendarSubscriptionTokenAsync(CurrentUserId);
-        var feedUrl = Url.Action(
-            nameof(CalendarEnrollmentsIcs),
-            null,
-            new { token },
-            Request.Scheme)
-            ?? $"{Request.Scheme}://{Request.Host}/api/v1/users/calendar/enrollments/{token}.ics";
-
-        return Ok(new CalendarSubscriptionDto(feedUrl));
-    }
-
-    [AllowAnonymous]
-    [HttpGet("calendar/enrollments/{token}.ics")]
-    [Produces("text/calendar")]
-    [ProducesResponseType(StatusCodes.Status200OK)]
-    [ProducesResponseType(StatusCodes.Status403Forbidden)]
-    public async Task<FileContentResult> CalendarEnrollmentsIcs(string token)
-    {
-        var ics = await _users.GetEnrollmentsIcsBySubscriptionTokenAsync(token);
-        return File(Encoding.UTF8.GetBytes(ics), "text/calendar; charset=utf-8", "my-lectures.ics");
-    }
-
-    [HttpGet("me/enrollments.ics")]
-    [Produces("text/calendar")]
-    [ProducesResponseType(StatusCodes.Status200OK)]
-    public async Task<FileContentResult> MyEnrollmentsIcs()
-    {
-        var ics = await _users.GetMyEnrollmentsIcsAsync(CurrentUserId);
-        return File(Encoding.UTF8.GetBytes(ics), "text/calendar; charset=utf-8", "my-lectures.ics");
-    }
-
-    [HttpGet("me/enrollments/{lectureId:int}.ics")]
-    [Produces("text/calendar")]
-    [ProducesResponseType(StatusCodes.Status200OK)]
-    [ProducesResponseType(StatusCodes.Status404NotFound)]
-    public async Task<FileContentResult> EnrollmentIcs(int lectureId)
-    {
-        var ics = await _users.GetEnrollmentIcsAsync(CurrentUserId, lectureId);
-        return File(Encoding.UTF8.GetBytes(ics), "text/calendar; charset=utf-8", $"lecture-{lectureId}.ics");
-    }
-
     /// <summary>Получить отзывы текущего пользователя.</summary>
     /// <param name="pagination">Параметры пагинации.</param>
     /// <response code="200">Список отзывов (пагинированный).</response>
@@ -206,19 +159,6 @@ public class UsersController : ControllerBase
     [ProducesResponseType(StatusCodes.Status404NotFound)]
     public async Task<ActionResult<UserStatsDto>> Stats(int id) => Ok(await _users.GetStatsAsync(id));
 
-    /// <summary>Получить статистику для админского дашборда.</summary>
-    /// <remarks>Только Admin.</remarks>
-    /// <response code="200">Агрегированная статистика дашборда.</response>
-    /// <response code="401">Требуется аутентификация.</response>
-    /// <response code="403">Требуется роль Admin.</response>
-    [Authorize(Roles = "Admin")]
-    [HttpGet("admin/stats")]
-    [ProducesResponseType(typeof(AdminDashboardStatsDto), StatusCodes.Status200OK)]
-    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
-    [ProducesResponseType(StatusCodes.Status403Forbidden)]
-    public async Task<ActionResult<AdminDashboardStatsDto>> AdminStats() =>
-        Ok(await _users.GetAdminDashboardStatsAsync());
-
     /// <summary>Получить список записей пользователя на лекции.</summary>
     /// <remarks>Только Admin. Для текущего пользователя используйте GET /api/v1/users/me/enrollments.</remarks>
     /// <param name="id">ID пользователя.</param>

backend/UniVerse.Api/Middleware/LocalNetworksOnlyMiddleware.cs

@@ -1,71 +0,0 @@
-using System.Net;
-using System.Net.Sockets;
-
-namespace UniVerse.Api.Middleware;
-
-public sealed class LocalNetworksOnlyMiddleware
-{
-    private readonly RequestDelegate _next;
-    private readonly ILogger<LocalNetworksOnlyMiddleware> _logger;
-
-    public LocalNetworksOnlyMiddleware(RequestDelegate next, ILogger<LocalNetworksOnlyMiddleware> logger)
-    {
-        _next = next;
-        _logger = logger;
-    }
-
-    public async Task InvokeAsync(HttpContext context)
-    {
-        var remoteIpAddress = context.Connection.RemoteIpAddress;
-
-        if (remoteIpAddress is null || !IsLocalNetwork(remoteIpAddress))
-        {
-            _logger.LogWarning("Blocked metrics request from non-local address {RemoteIpAddress}", remoteIpAddress);
-            context.Response.StatusCode = StatusCodes.Status403Forbidden;
-            await context.Response.WriteAsync("Metrics endpoint is available only from local networks.");
-            return;
-        }
-
-        await _next(context);
-    }
-
-    private static bool IsLocalNetwork(IPAddress ipAddress)
-    {
-        if (IPAddress.IsLoopback(ipAddress))
-        {
-            return true;
-        }
-
-        if (ipAddress.IsIPv4MappedToIPv6)
-        {
-            ipAddress = ipAddress.MapToIPv4();
-        }
-
-        return ipAddress.AddressFamily switch
-        {
-            AddressFamily.InterNetwork => IsPrivateOrLinkLocalIPv4(ipAddress),
-            AddressFamily.InterNetworkV6 => IsPrivateOrLinkLocalIPv6(ipAddress),
-            _ => false
-        };
-    }
-
-    private static bool IsPrivateOrLinkLocalIPv4(IPAddress ipAddress)
-    {
-        var bytes = ipAddress.GetAddressBytes();
-
-        return bytes[0] == 10
-               || bytes[0] == 127
-               || (bytes[0] == 192 && bytes[1] == 168)
-               || (bytes[0] == 172 && bytes[1] is >= 16 and <= 31)
-               || (bytes[0] == 169 && bytes[1] == 254);
-    }
-
-    private static bool IsPrivateOrLinkLocalIPv6(IPAddress ipAddress)
-    {
-        var bytes = ipAddress.GetAddressBytes();
-
-        return ipAddress.IsIPv6LinkLocal
-               || ipAddress.IsIPv6SiteLocal
-               || (bytes[0] & 0xfe) == 0xfc;
-    }
-}

backend/UniVerse.Api/Options/RateLimitingOptions.cs

@@ -1,12 +0,0 @@
-namespace UniVerse.Api.Options;
-
-public class RateLimitingOptions
-{
-    public const string SectionName = "RateLimiting";
-
-    public int PermitLimit { get; set; } = 600;
-
-    public int WindowSeconds { get; set; } = 60;
-
-    public int QueueLimit { get; set; } = 100;
-}

backend/UniVerse.Api/Program.cs

@@ -1,16 +1,11 @@
-using System.Security.Claims;
 using System.Text;
 using System.Text.Json.Serialization;
 using Microsoft.AspNetCore.Authentication.JwtBearer;
-using Microsoft.AspNetCore.RateLimiting;
 using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Options;
 using Microsoft.IdentityModel.Tokens;
 using Microsoft.OpenApi;
-using Prometheus;
 using Quartz;
 using Serilog;
-using System.Threading.RateLimiting;
 using UniVerse.Api.BackgroundServices;
 using UniVerse.Api.Filters;
 using UniVerse.Api.Middleware;
@@ -73,50 +68,6 @@ builder.Services.AddAuthentication(options =>
 });
 builder.Services.AddAuthorization();
 
-builder.Services.AddOptions<RateLimitingOptions>()
-    .Bind(builder.Configuration.GetSection(RateLimitingOptions.SectionName))
-    .Validate(options => options.PermitLimit >= 1,
-        "RateLimiting:PermitLimit must be greater than or equal to 1.")
-    .Validate(options => options.WindowSeconds >= 1,
-        "RateLimiting:WindowSeconds must be greater than or equal to 1.")
-    .Validate(options => options.QueueLimit >= 0,
-        "RateLimiting:QueueLimit must be greater than or equal to 0.")
-    .ValidateOnStart();
-
-builder.Services.AddRateLimiter(options =>
-{
-    options.RejectionStatusCode = StatusCodes.Status429TooManyRequests;
-    options.GlobalLimiter = PartitionedRateLimiter.Create<HttpContext, string>(context =>
-    {
-        var rateLimitingOptions = context.RequestServices.GetRequiredService<IOptions<RateLimitingOptions>>().Value;
-        return RateLimitPartition.GetFixedWindowLimiter(
-            GetRateLimitPartitionKey(context),
-            _ => new FixedWindowRateLimiterOptions
-            {
-                PermitLimit = rateLimitingOptions.PermitLimit,
-                Window = TimeSpan.FromSeconds(rateLimitingOptions.WindowSeconds),
-                QueueProcessingOrder = QueueProcessingOrder.OldestFirst,
-                QueueLimit = rateLimitingOptions.QueueLimit,
-                AutoReplenishment = true
-            });
-    });
-    options.OnRejected = async (context, cancellationToken) =>
-    {
-        if (context.Lease.TryGetMetadata(MetadataName.RetryAfter, out var retryAfter))
-            context.HttpContext.Response.Headers.RetryAfter = ((int)retryAfter.TotalSeconds).ToString();
-
-        context.HttpContext.Response.ContentType = "application/problem+json";
-        await context.HttpContext.Response.WriteAsJsonAsync(new
-        {
-            type = "https://httpstatuses.com/429",
-            title = "Too Many Requests",
-            status = StatusCodes.Status429TooManyRequests,
-            detail = "Rate limit exceeded. Please try again later.",
-            traceId = context.HttpContext.TraceIdentifier
-        }, cancellationToken);
-    };
-});
-
 // --- CORS ---
 builder.Services.AddCors(options =>
 {
@@ -184,7 +135,7 @@ builder.Services.AddHttpClient<ILlmClient, LlmClient>(client =>
 builder.Services.AddHttpClient<IModeusApiClient, ModeusApiClient>(client =>
 {
     client.BaseAddress = new Uri(builder.Configuration["ModeusApi:BaseUrl"] ?? "https://schedule.rdcenter.ru");
-    client.Timeout = TimeSpan.FromSeconds(builder.Configuration.GetValue("ModeusApi:TimeoutSeconds", 180));
+    client.Timeout = TimeSpan.FromSeconds(30);
 });
 
 // --- Background Services ---
@@ -269,9 +220,7 @@ if (app.Environment.IsDevelopment())
 
 app.UseCors();
 app.UseAuthentication();
-app.UseRateLimiter();
 app.UseAuthorization();
-app.UseHttpMetrics();
 if (app.Environment.IsDevelopment())
 {
     app.UseAntiforgery();
@@ -279,22 +228,4 @@ if (app.Environment.IsDevelopment())
 }
 app.MapControllers();
 
-// Restrict Prometheus scrape endpoint to local and private networks.
-app.UseWhen(
-    context => context.Request.Path.StartsWithSegments("/metrics", StringComparison.OrdinalIgnoreCase),
-    branch => branch.UseMiddleware<LocalNetworksOnlyMiddleware>());
-app.MapMetrics();
-
 app.Run();
-
-static string GetRateLimitPartitionKey(HttpContext context)
-{
-    var userId = context.User.FindFirstValue(ClaimTypes.NameIdentifier)
-        ?? context.User.FindFirstValue("sub");
-
-    if (!string.IsNullOrWhiteSpace(userId))
-        return $"user:{userId}";
-
-    var ipAddress = context.Connection.RemoteIpAddress?.ToString();
-    return string.IsNullOrWhiteSpace(ipAddress) ? "anonymous:unknown" : $"ip:{ipAddress}";
-}

backend/UniVerse.Api/UniVerse.Api.csproj

@@ -30,7 +30,6 @@
         <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
         <PackageReference Include="FluentValidation.AspNetCore" Version="11.3.1" />
         <PackageReference Include="Quartz.Extensions.Hosting" Version="3.18.1" />
-        <PackageReference Include="prometheus-net.AspNetCore" Version="8.2.1" />
     </ItemGroup>
 
     <ItemGroup>

backend/UniVerse.Api/appsettings.json

@@ -13,11 +13,6 @@
       "http://localhost:3000"
     ]
   },
-  "RateLimiting": {
-    "PermitLimit": 600,
-    "WindowSeconds": 60,
-    "QueueLimit": 100
-  },
   "Llm": {
     "BaseUrl": "https://api.openai.com/v1/",
     "ApiKey": "",
@@ -28,8 +23,7 @@
   },
   "ModeusApi": {
     "BaseUrl": "https://schedule.rdcenter.ru",
-    "ApiKey": "",
+    "ApiKey": ""
-    "TimeoutSeconds": 180
   },
   "Serilog": {
     "MinimumLevel": {

backend/UniVerse.Api/openapi.json

@@ -3789,146 +3789,6 @@
         ]
       }
     },
-    "/api/v1/users/me/enrollments/calendar-subscription": {
-      "get": {
-        "tags": [
-          "Users"
-        ],
-        "description": "**Required:** any authenticated user",
-        "responses": {
-          "200": {
-            "description": "OK",
-            "content": {
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/CalendarSubscriptionDto"
-                }
-              }
-            }
-          },
-          "401": {
-            "description": "Unauthorized",
-            "content": {
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/ProblemDetails"
-                }
-              }
-            }
-          }
-        },
-        "security": [
-          {
-            "Bearer": [ ]
-          }
-        ]
-      }
-    },
-    "/api/v1/users/calendar/enrollments/{token}.ics": {
-      "get": {
-        "tags": [
-          "Users"
-        ],
-        "parameters": [
-          {
-            "name": "token",
-            "in": "path",
-            "required": true,
-            "schema": {
-              "type": "string"
-            }
-          }
-        ],
-        "responses": {
-          "200": {
-            "description": "OK"
-          },
-          "403": {
-            "description": "Forbidden",
-            "content": {
-              "text/calendar": {
-                "schema": {
-                  "$ref": "#/components/schemas/ProblemDetails"
-                }
-              },
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/ProblemDetails"
-                }
-              }
-            }
-          }
-        }
-      }
-    },
-    "/api/v1/users/me/enrollments.ics": {
-      "get": {
-        "tags": [
-          "Users"
-        ],
-        "description": "**Required:** any authenticated user",
-        "responses": {
-          "200": {
-            "description": "OK"
-          },
-          "401": {
-            "description": "Unauthorized — JWT token missing or invalid"
-          }
-        },
-        "security": [
-          {
-            "Bearer": [ ]
-          }
-        ]
-      }
-    },
-    "/api/v1/users/me/enrollments/{lectureId}.ics": {
-      "get": {
-        "tags": [
-          "Users"
-        ],
-        "description": "**Required:** any authenticated user",
-        "parameters": [
-          {
-            "name": "lectureId",
-            "in": "path",
-            "required": true,
-            "schema": {
-              "type": "integer",
-              "format": "int32"
-            }
-          }
-        ],
-        "responses": {
-          "200": {
-            "description": "OK"
-          },
-          "404": {
-            "description": "Not Found",
-            "content": {
-              "text/calendar": {
-                "schema": {
-                  "$ref": "#/components/schemas/ProblemDetails"
-                }
-              },
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/ProblemDetails"
-                }
-              }
-            }
-          },
-          "401": {
-            "description": "Unauthorized — JWT token missing or invalid"
-          }
-        },
-        "security": [
-          {
-            "Bearer": [ ]
-          }
-        ]
-      }
-    },
     "/api/v1/users/me/reviews": {
       "get": {
         "tags": [
@@ -4298,52 +4158,6 @@
         ]
       }
     },
-    "/api/v1/users/admin/stats": {
-      "get": {
-        "tags": [
-          "Users"
-        ],
-        "summary": "Получить статистику для админского дашборда.",
-        "description": "Только Admin.\n\n**Required roles:** Admin",
-        "responses": {
-          "200": {
-            "description": "Агрегированная статистика дашборда.",
-            "content": {
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/AdminDashboardStatsDto"
-                }
-              }
-            }
-          },
-          "401": {
-            "description": "Требуется аутентификация.",
-            "content": {
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/ProblemDetails"
-                }
-              }
-            }
-          },
-          "403": {
-            "description": "Требуется роль Admin.",
-            "content": {
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/ProblemDetails"
-                }
-              }
-            }
-          }
-        },
-        "security": [
-          {
-            "Bearer": [ ]
-          }
-        ]
-      }
-    },
     "/api/v1/users/{id}/enrollments": {
       "get": {
         "tags": [
@@ -4944,28 +4758,6 @@
         },
         "additionalProperties": false
       },
-      "AdminDashboardStatsDto": {
-        "type": "object",
-        "properties": {
-          "usersCount": {
-            "type": "integer",
-            "format": "int32"
-          },
-          "lecturesCount": {
-            "type": "integer",
-            "format": "int32"
-          },
-          "enrollmentsCount": {
-            "type": "integer",
-            "format": "int32"
-          },
-          "pendingReviewsCount": {
-            "type": "integer",
-            "format": "int32"
-          }
-        },
-        "additionalProperties": false
-      },
       "AuthResponse": {
         "type": "object",
         "properties": {
@@ -4983,16 +4775,6 @@
         },
         "additionalProperties": false
       },
-      "CalendarSubscriptionDto": {
-        "type": "object",
-        "properties": {
-          "feedUrl": {
-            "type": "string",
-            "nullable": true
-          }
-        },
-        "additionalProperties": false
-      },
       "CoinTransactionDto": {
         "type": "object",
         "properties": {

backend/UniVerse.AppHost/UniVerse.AppHost.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Aspire.AppHost.Sdk/13.3.5">
+<Project Sdk="Aspire.AppHost.Sdk/13.2.2">
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
@@ -13,7 +13,7 @@
     </ItemGroup>
 
     <ItemGroup>
-      <PackageReference Include="Aspire.Hosting.AppHost" Version="13.4.3" />
+      <PackageReference Include="Aspire.Hosting.AppHost" Version="13.2.2" />
     </ItemGroup>
 
 </Project>

backend/UniVerse.Application/DTOs/Users/UserDtos.cs

@@ -42,17 +42,8 @@ public record UserStatsDto(
     IReadOnlyList<EnrollmentSlotRuleDto> EnrollmentSlotRules
 );
 
-public record AdminDashboardStatsDto(
-    int UsersCount,
-    int LecturesCount,
-    int EnrollmentsCount,
-    int PendingReviewsCount
-);
-
 public record EnrollmentSlotRuleDto(int Level, int Slots);
 
-public record CalendarSubscriptionDto(string FeedUrl);
-
 public record UpdateUserRequest(
     string? DisplayName,
     string? AvatarUrl

backend/UniVerse.Application/Interfaces/IScheduleSyncService.cs

@@ -29,14 +29,11 @@ public class ModeusEvent
     public string? TypeId { get; init; }
     public DateTime StartsAt { get; init; }
     public DateTime EndsAt { get; init; }
-    public ModeusIctisStats? IctisStats { get; init; }
 
     [JsonPropertyName("_links")]
     public ModeusEventLinks? Links { get; init; }
 }
 
-public record ModeusIctisStats(int? StudentCount, int? TeacherCount);
-
 public class ModeusEventLinks
 {
     [JsonPropertyName("course-unit-realization")]

backend/UniVerse.Application/Interfaces/IUserService.cs

@@ -10,12 +10,7 @@ public interface IUserService
     Task<UserDto> GetByIdAsync(int id);
     Task<UserDto> UpdateProfileAsync(int id, UpdateUserRequest request);
     Task<UserStatsDto> GetStatsAsync(int id);
-    Task<AdminDashboardStatsDto> GetAdminDashboardStatsAsync();
     Task<PagedResult<LectureDto>> GetEnrollmentsAsync(int id, PaginationRequest pagination);
-    Task<string> GetMyEnrollmentsIcsAsync(int userId);
-    Task<string> GetEnrollmentIcsAsync(int userId, int lectureId);
-    Task<string> GetCalendarSubscriptionTokenAsync(int userId);
-    Task<string> GetEnrollmentsIcsBySubscriptionTokenAsync(string token);
     Task<PagedResult<UserDto>> GetAllAsync(UserFilterRequest filter);
     Task SetRolesAsync(int id, IReadOnlyCollection<UserRole> roles);
     Task SetActiveAsync(int id, bool isActive);

backend/UniVerse.Application/Mappings/MappingExtensions.cs

@@ -13,9 +13,6 @@ namespace UniVerse.Application.Mappings;
 
 public static class MappingExtensions
 {
-    private static int OccupiedSeatsCount(this Lecture lecture) =>
-        Math.Max(0, lecture.MandatoryAttendeesCount) + lecture.Enrollments.Count;
-
     // --- User ---
     public static UserDto ToDto(this User user, int level) => new(
         user.Id, user.Email, user.DisplayName, user.AvatarUrl,
@@ -60,7 +57,7 @@ public static class MappingExtensions
         lecture.LocationId, lecture.Location?.Name,
         lecture.Title, lecture.Description, lecture.Format,
         lecture.StartsAt, lecture.EndsAt, lecture.IsOpen,
-        lecture.MaxEnrollments, lecture.OccupiedSeatsCount(),
+        lecture.MaxEnrollments, lecture.Enrollments.Count,
         lecture.OnlineUrl, lecture.CreatedAt, isEnrolled
     );
 
@@ -70,7 +67,7 @@ public static class MappingExtensions
         lecture.LocationId, lecture.Location?.Name,
         lecture.Title, lecture.Description, lecture.Format,
         lecture.StartsAt, lecture.EndsAt, lecture.IsOpen,
-        lecture.MaxEnrollments, lecture.OccupiedSeatsCount(),
+        lecture.MaxEnrollments, lecture.Enrollments.Count,
         lecture.OnlineUrl, lecture.CreatedAt, isEnrolled
     );
 

backend/UniVerse.Application/Prompts/ReviewPromptTemplate.cs

@@ -6,37 +6,11 @@ public static class ReviewPromptTemplate
     public const string ReviewTextPlaceholder = "{reviewText}";
 
     public const string Default = """
-        Проанализируй отзыв студента о лекции. Главная задача - определить, насколько отзыв информативен и полезен для аналитики качества лекции и обратной связи преподавателю.
+        Проанализируй отзыв студента о лекции. Верни объект JSON со следующими полями: 
-
+        - quality_score: число от 0 до 1, указывающее на качество отзыва;
-        Верни только валидный JSON-объект без Markdown, пояснений и дополнительного текста:
+        - sentiment: «Положительный», «Нейтральный» или «Отрицательный»; 
-        {
+        - tags: массив соответствующих тематических тегов;
-          "quality_score": 0.0,
+        - is_informative: логическое значение, указывающее, является ли отзыв информативным.
-          "sentiment": "Нейтральный",
-          "tags": [],
-          "is_informative": false
-        }
-
-        Правила оценки:
-        - quality_score: число от 0 до 1. Оценивай содержательность, конкретику, аргументацию, конструктивность и развернутость отзыва, а не оценку лекции как таковой.
-        - is_informative: true, если отзыв содержит конкретные наблюдения о лекции, преподавании, структуре, материалах, темпе, сложности, практике, организации или полезности. false для односложных, шаблонных, эмоциональных без конкретики или нерелевантных отзывов.
-        - sentiment: строго одно из значений "Положительный", "Нейтральный", "Отрицательный".
-        - tags: массив коротких тематических тегов на русском языке. Используй 1-5 тегов, если они подходят; для неинформативного отзыва можно вернуть пустой массив.
-
-        Базовые теги:
-        - "структура лекции"
-        - "понятность объяснения"
-        - "темп"
-        - "сложность"
-        - "практические примеры"
-        - "материалы"
-        - "актуальность темы"
-        - "вовлеченность"
-        - "организация"
-        - "технические проблемы"
-        - "польза для обучения"
-        - "неинформативный отзыв"
-
-        Можно добавлять новые теги, если они точнее отражают содержание отзыва. Не добавляй теги, которых нет в тексте отзыва или контексте лекции.
 
         Контекст лекции: {lectureContext}
         Текст отзыва: {reviewText}

backend/UniVerse.Domain/Entities/Lecture.cs

@@ -15,7 +15,6 @@ public class Lecture
     public DateTime EndsAt { get; set; }
     public bool IsOpen { get; set; } = true;
     public int MaxEnrollments { get; set; }
-    public int MandatoryAttendeesCount { get; set; }
     public string? ExternalId { get; set; }
     public string? OnlineUrl { get; set; }
     public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

backend/UniVerse.Infrastructure/Data/Configurations/LectureConfiguration.cs

@@ -22,7 +22,6 @@ public class LectureConfiguration : IEntityTypeConfiguration<Lecture>
         builder.Property(l => l.EndsAt).HasColumnName("ends_at");
         builder.Property(l => l.IsOpen).HasColumnName("is_open").HasDefaultValue(true);
         builder.Property(l => l.MaxEnrollments).HasColumnName("max_enrollments").HasDefaultValue(0);
-        builder.Property(l => l.MandatoryAttendeesCount).HasColumnName("mandatory_attendees_count").HasDefaultValue(0);
         builder.Property(l => l.ExternalId).HasColumnName("external_id").HasMaxLength(255);
         builder.Property(l => l.OnlineUrl).HasColumnName("online_url").HasMaxLength(500);
         builder.Property(l => l.CreatedAt).HasColumnName("created_at").HasDefaultValueSql("NOW()");

backend/UniVerse.Infrastructure/ExternalServices/ModeusApiClient.cs

@@ -42,11 +42,12 @@ public class ModeusApiClient : IModeusApiClient
         AddNonEmpty(body, "curriculumId", request.CurriculumId);
         AddNonEmpty(body, "typeId", request.TypeId);
 
+        var response = await _http.PostAsJsonAsync("/api/proxy/events/search", body);
         var requestJson = JsonSerializer.Serialize(body);
-        var requestSummary = $"POST /api/ictis?includeCounts=true. Request JSON: {requestJson}";
+        await EnsureSuccessAsync(response, "Modeus events search",
-        var response = await _http.PostAsJsonAsync("/api/ictis?includeCounts=true", body);
+            BuildEventsRequestSummary(requestJson));
-        await EnsureSuccessAsync(response, "ICTIS events search", requestSummary);
+        return await ReadJsonAsync<ModeusEventsResponse>(response, "Modeus events search",
-        return await ReadJsonAsync<ModeusEventsResponse>(response, "ICTIS events search", requestSummary)
+            BuildEventsRequestSummary(requestJson))
             ?? new ModeusEventsResponse();
     }
 
@@ -97,6 +98,8 @@ public class ModeusApiClient : IModeusApiClient
             response.StatusCode);
     }
 
+    private static string BuildEventsRequestSummary(string requestJson) => $"Request JSON: {requestJson}";
+
     private static void AddNonEmpty<T>(
         IDictionary<string, object?> body,
         string key,

backend/UniVerse.Infrastructure/Migrations/20260530105758_MandatoryAttendeesCount.cs

@@ -1,29 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-
-#nullable disable
-
-namespace UniVerse.Infrastructure.Migrations
-{
-    /// <inheritdoc />
-    public partial class MandatoryAttendeesCount : Migration
-    {
-        /// <inheritdoc />
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.AddColumn<int>(
-                name: "mandatory_attendees_count",
-                table: "lectures",
-                type: "integer",
-                nullable: false,
-                defaultValue: 0);
-        }
-
-        /// <inheritdoc />
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropColumn(
-                name: "mandatory_attendees_count",
-                table: "lectures");
-        }
-    }
-}

backend/UniVerse.Infrastructure/Migrations/AppDbContextModelSnapshot.cs

@@ -17,7 +17,7 @@ namespace UniVerse.Infrastructure.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "10.0.8")
+                .HasAnnotation("ProductVersion", "10.0.7")
                 .HasAnnotation("Relational:MaxIdentifierLength", 63);
 
             NpgsqlModelBuilderExtensions.HasPostgresEnum(modelBuilder, "coin_transaction_type", "coin_transaction_type", new[] { "review_reward", "achievement_reward", "attendance_reward", "admin_adjustment" });
@@ -250,12 +250,6 @@ namespace UniVerse.Infrastructure.Migrations
                         .HasColumnType("integer")
                         .HasColumnName("location_id");
 
-                    b.Property<int>("MandatoryAttendeesCount")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer")
-                        .HasDefaultValue(0)
-                        .HasColumnName("mandatory_attendees_count");
-
                     b.Property<int>("MaxEnrollments")
                         .ValueGeneratedOnAdd()
                         .HasColumnType("integer")

backend/UniVerse.Infrastructure/Services/LectureService.cs

@@ -122,8 +122,7 @@ public class LectureService : ILectureService
             .FirstOrDefaultAsync(l => l.Id == lectureId) ?? throw new NotFoundException("Lecture", lectureId);
         var user = await _db.Users.FindAsync(userId) ?? throw new NotFoundException("User", userId);
         if (!lecture.IsOpen) throw new ConflictException("Lecture is not open for enrollment.");
-        var occupiedSeatsCount = Math.Max(0, lecture.MandatoryAttendeesCount) + lecture.Enrollments.Count;
+        if (lecture.MaxEnrollments > 0 && lecture.Enrollments.Count >= lecture.MaxEnrollments)
-        if (lecture.MaxEnrollments > 0 && occupiedSeatsCount >= lecture.MaxEnrollments)
             throw new ConflictException("Lecture is full.");
         if (lecture.Enrollments.Any(e => e.UserId == userId))
             throw new ConflictException("Already enrolled.");

backend/UniVerse.Infrastructure/Services/ScheduleSyncService.cs

@@ -1,5 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
+using System.Text.Json;
 using UniVerse.Application.DTOs.Sync;
 using UniVerse.Application.Interfaces;
 using UniVerse.Domain.Entities;
@@ -54,7 +55,6 @@ public class ScheduleSyncService : IScheduleSyncService
                 }
 
                 var lectureCapacity = maxEnrollments ?? GetEventTeamSize(events, ev.Id) ?? 0;
-                var mandatoryAttendeesCount = GetMandatoryAttendeesCount(ev.IctisStats);
                 var startsAt = EnsureUtc(ev.StartsAt);
                 var endsAt = EnsureUtc(ev.EndsAt);
 
@@ -68,7 +68,6 @@ public class ScheduleSyncService : IScheduleSyncService
                     existing.LocationId = location?.Id;
                     existing.TeacherId = teacher?.Id;
                     existing.MaxEnrollments = lectureCapacity;
-                    existing.MandatoryAttendeesCount = mandatoryAttendeesCount;
                     existing.UpdatedAt = DateTime.UtcNow;
                     updated++;
                 }
@@ -92,8 +91,7 @@ public class ScheduleSyncService : IScheduleSyncService
                         ExternalId = ev.Id,
                         StartsAt = startsAt,
                         EndsAt = endsAt,
-                        MaxEnrollments = lectureCapacity,
+                        MaxEnrollments = lectureCapacity
-                        MandatoryAttendeesCount = mandatoryAttendeesCount
                     });
                     created++;
                 }
@@ -113,7 +111,7 @@ public class ScheduleSyncService : IScheduleSyncService
                 updated,
                 skipped,
                 [
-                    "endpoint=POST /api/ictis?includeCounts=true",
+                    $"requestJson={BuildScheduleRequestJson(request)}",
                     $"timeMin={request.TimeMin:O}",
                     $"timeMax={request.TimeMax:O}"
                 ]));
@@ -445,9 +443,6 @@ public class ScheduleSyncService : IScheduleSyncService
     private static int? NormalizeCapacity(int? capacity) =>
         capacity is > 0 ? capacity : null;
 
-    private static int GetMandatoryAttendeesCount(ModeusIctisStats? stats) =>
-        Math.Max(0, stats?.StudentCount ?? 0) + Math.Max(0, stats?.TeacherCount ?? 0);
-
     private static string BuildModeusTeacherEmail(string personId) =>
         $"modeus-{personId}@modeus.local".ToLowerInvariant();
 
@@ -493,6 +488,37 @@ public class ScheduleSyncService : IScheduleSyncService
         return details;
     }
 
+    private static string BuildScheduleRequestJson(SyncScheduleRequest request)
+    {
+        var body = new Dictionary<string, object?>
+        {
+            ["size"] = request.Size is > 0 ? request.Size.Value : 900,
+            ["timeMin"] = request.TimeMin,
+            ["timeMax"] = request.TimeMax
+        };
+
+        AddNonEmpty(body, "roomId", request.RoomId);
+        AddNonEmpty(body, "attendeePersonId", request.AttendeePersonId);
+        AddNonEmpty(body, "courseUnitRealizationId", request.CourseUnitRealizationId);
+        AddNonEmpty(body, "cycleRealizationId", request.CycleRealizationId);
+        AddNonEmpty(body, "specialtyCode", request.SpecialtyCode);
+        AddNonEmpty(body, "learningStartYear", request.LearningStartYear);
+        AddNonEmpty(body, "profileName", request.ProfileName);
+        AddNonEmpty(body, "curriculumId", request.CurriculumId);
+        AddNonEmpty(body, "typeId", request.TypeId);
+
+        return JsonSerializer.Serialize(body);
+    }
+
+    private static void AddNonEmpty<T>(
+        IDictionary<string, object?> body,
+        string key,
+        IReadOnlyList<T>? values)
+    {
+        if (values is { Count: > 0 })
+            body[key] = values;
+    }
+
     private static string? GetHrefId(string? href)
     {
         if (string.IsNullOrWhiteSpace(href))

backend/UniVerse.Infrastructure/Services/UserService.cs

@@ -1,12 +1,4 @@
-using System.Buffers.Binary;
-using System.Security.Cryptography;
-using System.Text;
-using Ical.Net;
-using Ical.Net.CalendarComponents;
-using Ical.Net.DataTypes;
-using Ical.Net.Serialization;
 using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Configuration;
 using UniVerse.Application.DTOs.Common;
 using UniVerse.Application.DTOs.Lectures;
 using UniVerse.Application.DTOs.Users;
@@ -21,20 +13,13 @@ namespace UniVerse.Infrastructure.Services;
 
 public class UserService : IUserService
 {
-    private const byte CalendarTokenVersion = 1;
-    private const int CalendarTokenPayloadLength = 5;
-    private const int CalendarTokenSignatureLength = 32;
-    private const string CalendarTokenKeyContext = "universe-calendar-subscription-v1";
-
     private readonly AppDbContext _db;
     private readonly IGamificationService _gamification;
-    private readonly IConfiguration _config;
 
-    public UserService(AppDbContext db, IGamificationService gamification, IConfiguration config)
+    public UserService(AppDbContext db, IGamificationService gamification)
     {
         _db = db;
         _gamification = gamification;
-        _config = config;
     }
 
     public async Task<UserDto> GetByIdAsync(int id)
@@ -89,17 +74,6 @@ public class UserService : IUserService
         );
     }
 
-    public async Task<AdminDashboardStatsDto> GetAdminDashboardStatsAsync()
-    {
-        var usersCount = await _db.Users
-            .CountAsync(user => !user.Roles.Any(role => role.Role == UserRole.Teacher));
-        var lecturesCount = await _db.Lectures.CountAsync();
-        var enrollmentsCount = await _db.LectureEnrollments.CountAsync();
-        var pendingReviewsCount = await _db.Reviews.CountAsync(review => review.LlmStatus == ReviewLlmStatus.Pending);
-
-        return new AdminDashboardStatsDto(usersCount, lecturesCount, enrollmentsCount, pendingReviewsCount);
-    }
-
     public async Task<PagedResult<LectureDto>> GetEnrollmentsAsync(int id, PaginationRequest pagination)
     {
         if (!await _db.Users.AnyAsync(u => u.Id == id))
@@ -130,154 +104,6 @@ public class UserService : IUserService
             pagination.PageSize);
     }
 
-
-    public async Task<string> GetMyEnrollmentsIcsAsync(int userId)
-    {
-        if (!await _db.Users.AnyAsync(u => u.Id == userId))
-            throw new NotFoundException("User", userId);
-
-        var lectures = await _db.LectureEnrollments
-            .Where(e => e.UserId == userId)
-            .Include(e => e.Lecture)
-            .ThenInclude(l => l.Teacher)
-            .Include(e => e.Lecture)
-            .ThenInclude(l => l.Location)
-            .OrderBy(e => e.Lecture.StartsAt)
-            .Select(e => e.Lecture)
-            .ToListAsync();
-
-        return BuildIcs(lectures, userId);
-    }
-
-    public async Task<string> GetEnrollmentIcsAsync(int userId, int lectureId)
-    {
-        if (!await _db.Users.AnyAsync(u => u.Id == userId))
-            throw new NotFoundException("User", userId);
-
-        var lecture = await _db.Lectures
-            .Include(l => l.Teacher)
-            .Include(l => l.Location)
-            .FirstOrDefaultAsync(l => l.Id == lectureId)
-            ?? throw new NotFoundException("Lecture", lectureId);
-
-        return BuildIcs([lecture], userId);
-    }
-
-    public async Task<string> GetCalendarSubscriptionTokenAsync(int userId)
-    {
-        if (!await _db.Users.AnyAsync(u => u.Id == userId))
-            throw new NotFoundException("User", userId);
-
-        Span<byte> payload = stackalloc byte[CalendarTokenPayloadLength];
-        payload[0] = CalendarTokenVersion;
-        BinaryPrimitives.WriteInt32BigEndian(payload[1..], userId);
-
-        var signature = SignCalendarTokenPayload(payload);
-        var tokenBytes = new byte[CalendarTokenPayloadLength + CalendarTokenSignatureLength];
-        payload.CopyTo(tokenBytes);
-        signature.CopyTo(tokenBytes.AsSpan(CalendarTokenPayloadLength));
-
-        return ToBase64Url(tokenBytes);
-    }
-
-    public async Task<string> GetEnrollmentsIcsBySubscriptionTokenAsync(string token)
-    {
-        var userId = ValidateCalendarSubscriptionToken(token);
-        return await GetMyEnrollmentsIcsAsync(userId);
-    }
-
-    private int ValidateCalendarSubscriptionToken(string token)
-    {
-        var tokenBytes = FromBase64Url(token);
-        if (tokenBytes.Length != CalendarTokenPayloadLength + CalendarTokenSignatureLength)
-            throw new ForbiddenException("Invalid calendar subscription token.");
-
-        var payload = tokenBytes.AsSpan(0, CalendarTokenPayloadLength);
-        var signature = tokenBytes.AsSpan(CalendarTokenPayloadLength, CalendarTokenSignatureLength);
-        if (payload[0] != CalendarTokenVersion)
-            throw new ForbiddenException("Invalid calendar subscription token.");
-
-        var expectedSignature = SignCalendarTokenPayload(payload);
-        if (!CryptographicOperations.FixedTimeEquals(signature, expectedSignature))
-            throw new ForbiddenException("Invalid calendar subscription token.");
-
-        var userId = BinaryPrimitives.ReadInt32BigEndian(payload[1..]);
-        if (userId <= 0)
-            throw new ForbiddenException("Invalid calendar subscription token.");
-
-        return userId;
-    }
-
-    private byte[] SignCalendarTokenPayload(ReadOnlySpan<byte> payload)
-    {
-        var calendarKey = DeriveCalendarTokenKey();
-        return HMACSHA256.HashData(calendarKey, payload);
-    }
-
-    private byte[] DeriveCalendarTokenKey()
-    {
-        var jwtSecret = _config["Jwt:Secret"];
-        if (string.IsNullOrWhiteSpace(jwtSecret))
-            throw new InvalidOperationException("Jwt:Secret is not configured.");
-
-        return HMACSHA256.HashData(
-            Encoding.UTF8.GetBytes(jwtSecret),
-            Encoding.UTF8.GetBytes(CalendarTokenKeyContext));
-    }
-
-    private static string ToBase64Url(ReadOnlySpan<byte> bytes) =>
-        Convert.ToBase64String(bytes)
-            .TrimEnd('=')
-            .Replace('+', '-')
-            .Replace('/', '_');
-
-    private static byte[] FromBase64Url(string value)
-    {
-        try
-        {
-            var padded = value.Replace('-', '+').Replace('_', '/');
-            padded = padded.PadRight(padded.Length + (4 - padded.Length % 4) % 4, '=');
-            return Convert.FromBase64String(padded);
-        }
-        catch (FormatException)
-        {
-            throw new ForbiddenException("Invalid calendar subscription token.");
-        }
-    }
-
-    private static string BuildIcs(List<Domain.Entities.Lecture> lectures, int userId)
-    {
-        var calendar = new Calendar
-        {
-            Method = "PUBLISH",
-            ProductId = "-//UniVerse//Lectures Calendar//EN"
-        };
-
-        foreach (var lecture in lectures)
-        {
-            var location = lecture.Location is null
-                ? string.Empty
-                : $"{lecture.Location.Building}{(string.IsNullOrWhiteSpace(lecture.Location.Room) ? string.Empty : $", ауд. {lecture.Location.Room}")}";
-
-            var teacherName = lecture.Teacher?.DisplayName
-                ?? lecture.Teacher?.Email
-                ?? "не указан";
-
-            calendar.Events.Add(new CalendarEvent
-            {
-                Uid = $"lecture-{lecture.Id}-user-{userId}@universe.local",
-                Summary = lecture.Title,
-                Description = $"{lecture.Description}\nПреподаватель: {teacherName}",
-                Location = location,
-                DtStart = new CalDateTime(DateTime.SpecifyKind(lecture.StartsAt, DateTimeKind.Utc)),
-                DtEnd = new CalDateTime(DateTime.SpecifyKind(lecture.EndsAt, DateTimeKind.Utc)),
-                DtStamp = new CalDateTime(DateTime.UtcNow)
-            });
-        }
-
-        return new CalendarSerializer().SerializeToString(calendar) ?? string.Empty;
-    }
-
     public async Task<PagedResult<UserDto>> GetAllAsync(UserFilterRequest filter)
     {
         var query = _db.Users.AsQueryable();

backend/UniVerse.Infrastructure/UniVerse.Infrastructure.csproj

@@ -13,7 +13,6 @@
         <PackageReference Include="Microsoft.Extensions.Http" Version="10.0.8" />
         <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.18.0" />
         <PackageReference Include="Quartz" Version="3.18.1" />
-        <PackageReference Include="Ical.Net" Version="5.2.2" />
     </ItemGroup>
 
     <ItemGroup>

docker-compose-prod.yml

@@ -26,10 +26,6 @@ services:
 
       - Cors:Origins=${CORS_ALLOWED_ORIGINS:-http://localhost:3000}
 
-      - RateLimiting:PermitLimit=${RATE_LIMITING_PERMIT_LIMIT:-600}
-      - RateLimiting:WindowSeconds=${RATE_LIMITING_WINDOW_SECONDS:-60}
-      - RateLimiting:QueueLimit=${RATE_LIMITING_QUEUE_LIMIT:-100}
-
       - Llm:BaseUrl=${LLM_BASE_URL}
       - Llm:ApiKey=${LLM_API_KEY}
       - Llm:Model=${LLM_MODEL}

frontend/src/api/client.ts

@@ -81,30 +81,3 @@ export function extractItems<T>(payload: T[] | { items?: T[] } | undefined): T[]
   if (Array.isArray(payload)) return payload
   return payload?.items ?? []
 }
-
-
-export async function apiRequestBlob(
-  path: string,
-  options: RequestInit & { query?: Record<string, unknown> } = {},
-): Promise<Blob> {
-  const headers = new Headers(options.headers)
-  if (!headers.has('Accept')) headers.set('Accept', 'text/calendar')
-  if (accessToken) headers.set('Authorization', `Bearer ${accessToken}`)
-
-  const response = await fetch(makeUrl(path, options.query), {
-    ...options,
-    headers,
-    credentials: 'include',
-  })
-
-  if (!response.ok) {
-    const body = await parseResponse(response)
-    const message =
-      typeof body === 'object' && body && 'message' in body
-        ? String((body as { message: unknown }).message)
-        : `API request failed with status ${response.status}`
-    throw new ApiError(message, response.status, body)
-  }
-
-  return response.blob()
-}

frontend/src/api/index.ts

@@ -1,4 +1,4 @@
-import { apiRequest, apiRequestBlob, extractItems } from './client'
+import { apiRequest, extractItems } from './client'
 import type {
   AchievementDto,
   AuthResponse,
@@ -18,8 +18,6 @@ import type {
   TagDto,
   UpdateReviewPromptRequest,
   UserAchievementDto,
-  AdminDashboardStatsDto,
-  CalendarSubscriptionDto,
   CurrentUserDto,
   UserDto,
   UserQuery,
@@ -70,18 +68,12 @@ export const usersApi = {
       body: JSON.stringify(payload),
     }),
   myStats: () => apiRequest<UserStatsDto>('/users/me/stats'),
-  adminStats: () => apiRequest<AdminDashboardStatsDto>('/users/admin/stats'),
   async myEnrollments() {
     const payload = await apiRequest<PagedResult<LectureDto> | LectureDto[] | undefined>(
       '/users/me/enrollments',
     )
     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[]

frontend/src/api/types.ts

@@ -76,17 +76,6 @@ export interface UserStatsDto {
   enrollmentSlotRules: EnrollmentSlotRuleDto[]
 }
 
-export interface AdminDashboardStatsDto {
-  usersCount: number
-  lecturesCount: number
-  enrollmentsCount: number
-  pendingReviewsCount: number
-}
-
-export interface CalendarSubscriptionDto {
-  feedUrl: string
-}
-
 export interface EnrollmentSlotRuleDto {
   level: number
   slots: number

frontend/src/utils/downloadFile.ts

@@ -1,10 +0,0 @@
-export function downloadFile(blob: Blob, fileName: string) {
-  const url = URL.createObjectURL(blob)
-  const link = document.createElement('a')
-  link.href = url
-  link.download = fileName
-  document.body.appendChild(link)
-  link.click()
-  link.remove()
-  URL.revokeObjectURL(url)
-}

frontend/src/views/admin/AdminDashboardView.vue

@@ -3,11 +3,17 @@ import { computed, onMounted, ref } from 'vue'
 import GlassCard from '@/components/ui/GlassCard.vue'
 import StatsWidget from '@/components/ui/StatsWidget.vue'
 import StatusBadge from '@/components/ui/StatusBadge.vue'
-import { syncApi, usersApi } from '@/api'
+import { lecturesApi, reviewsApi, syncApi, usersApi } from '@/api'
-import type { AdminDashboardStatsDto, SyncStatusDto } from '@/api/types'
+import type { LectureDto, SyncStatusDto, UserDto } from '@/api/types'
 
-const stats = ref<AdminDashboardStatsDto | null>(null)
+const users = ref<UserDto[]>([])
+const lectures = ref<LectureDto[]>([])
+const pendingReviewsCount = ref(0)
 const syncStatus = ref<SyncStatusDto | null>(null)
+
+const enrollmentCount = computed(() =>
+  lectures.value.reduce((sum, lecture) => sum + lecture.enrollmentsCount, 0),
+)
 const syncMeta = computed(() =>
   syncStatus.value?.lastSyncAt
     ? `Последняя синхронизация: ${new Date(syncStatus.value.lastSyncAt).toLocaleString('ru-RU')}`
@@ -15,8 +21,16 @@ const syncMeta = computed(() =>
 )
 
 onMounted(async () => {
-  const [statsResult, syncResult] = await Promise.allSettled([usersApi.adminStats(), syncApi.status()])
+  const [usersResult, lecturesResult, reviewsResult, syncResult] = await Promise.allSettled([
-  if (statsResult.status === 'fulfilled') stats.value = statsResult.value
+    usersApi.list({ PageSize: 100 }),
+    lecturesApi.list({ PageSize: 100 }),
+    reviewsApi.listPage({ Page: 1, PageSize: 1, LlmStatus: 'Pending' }),
+    syncApi.status(),
+  ])
+  if (usersResult.status === 'fulfilled') users.value = usersResult.value
+  if (lecturesResult.status === 'fulfilled') lectures.value = lecturesResult.value
+  if (reviewsResult.status === 'fulfilled')
+    pendingReviewsCount.value = reviewsResult.value.totalCount
   if (syncResult.status === 'fulfilled') syncStatus.value = syncResult.value
 })
 </script>
@@ -26,17 +40,12 @@ onMounted(async () => {
     <h1 class="page-title">Дашборд администратора</h1>
 
     <div class="stats-row">
-      <StatsWidget label="Пользователей" :value="stats?.usersCount ?? 0" icon="users" color="green" />
+      <StatsWidget label="Пользователей" :value="users.length" icon="users" color="green" />
-      <StatsWidget label="Лекций" :value="stats?.lecturesCount ?? 0" icon="books" color="aqua" />
+      <StatsWidget label="Лекций" :value="lectures.length" icon="books" color="aqua" />
-      <StatsWidget
+      <StatsWidget label="Записей" :value="enrollmentCount" icon="calendar-event" color="orange" />
-        label="Записей"
-        :value="stats?.enrollmentsCount ?? 0"
-        icon="calendar-event"
-        color="orange"
-      />
       <StatsWidget
         label="Отзывы на проверке"
-        :value="stats?.pendingReviewsCount ?? 0"
+        :value="pendingReviewsCount"
         icon="message-circle"
         color="purple"
       />

frontend/src/views/student/DashboardView.vue

@@ -2,8 +2,6 @@
 import { computed, inject, onMounted, ref } from 'vue'
 import { useRouter } from 'vue-router'
 import { useAuthStore } from '@/stores/auth'
-import { usersApi } from '@/api'
-import { downloadFile } from '@/utils/downloadFile'
 import { useLecturesStore } from '@/stores/lectures'
 import { useUserStore } from '@/stores/user'
 import GlassCard from '@/components/ui/GlassCard.vue'
@@ -68,16 +66,6 @@ const levelProgressText = computed(() =>
     : `${userXp.value} XP`,
 )
 
-async function downloadLectureIcs(id: string) {
-  try {
-    const blob = await usersApi.downloadEnrollmentIcs(id)
-    downloadFile(blob, `lecture-${id}.ics`)
-    addToast?.("Файл календаря скачан", "success")
-  } catch (err) {
-    addToast?.(err instanceof Error ? err.message : "Не удалось скачать .ics", "error")
-  }
-}
-
 onMounted(async () => {
   await Promise.all([
     lectures.all.length ? Promise.resolve() : lectures.fetchLectures(),
@@ -137,7 +125,7 @@ async function registerLecture(id: string) {
           <button class="btn-primary" @click="router.push(`/lecture/${nextLecture.id}`)">
             Открыть
           </button>
-          <button class="btn-secondary" @click="downloadLectureIcs(nextLecture.id)">Скачать .ics</button>
+          <button class="btn-secondary">Добавить в календарь</button>
         </div>
       </div>
     </GlassCard>

frontend/src/views/student/LectureDetailView.vue

@@ -1,8 +1,6 @@
 <script setup lang="ts">
 import { computed, inject, onMounted, ref } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
-import { usersApi } from '@/api'
-import { downloadFile } from '@/utils/downloadFile'
 import { useLecturesStore } from '@/stores/lectures'
 import { useUserStore } from '@/stores/user'
 import GlassCard from '@/components/ui/GlassCard.vue'
@@ -39,16 +37,6 @@ onMounted(async () => {
   await lecturesStore.fetchLecture(lectureId.value)
 })
 
-async function downloadLectureIcs(id: string) {
-  try {
-    const blob = await usersApi.downloadEnrollmentIcs(id)
-    downloadFile(blob, `lecture-${id}.ics`)
-    addToast?.("Файл календаря скачан", "success")
-  } catch (err) {
-    addToast?.(err instanceof Error ? err.message : "Не удалось скачать .ics", "error")
-  }
-}
-
 async function registerLecture() {
   if (!lecture.value) return
   if (slotRegistrationDisabled.value) {
@@ -102,7 +90,7 @@ async function registerLecture() {
         <button v-else class="btn-secondary" @click="lecturesStore.unregister(lecture.id)">
           Отменить запись
         </button>
-        <button class="btn-secondary" @click="downloadLectureIcs(lecture.id)">Скачать .ics</button>
+        <button class="btn-secondary">Добавить в календарь</button>
         <button v-if="isAttended" class="btn-primary" @click="router.push(`/review/${lecture.id}`)">
           Оставить отзыв
         </button>

frontend/src/views/student/MyLecturesView.vue

@@ -1,8 +1,6 @@
 <script setup lang="ts">
-import { computed, inject, onMounted, ref } from 'vue'
+import { computed, onMounted, ref } from 'vue'
 import { useRouter } from 'vue-router'
-import { usersApi } from '@/api'
-import { downloadFile } from '@/utils/downloadFile'
 import { useLecturesStore } from '@/stores/lectures'
 import { useAuthStore } from '@/stores/auth'
 import GlassCard from '@/components/ui/GlassCard.vue'
@@ -16,11 +14,6 @@ const router = useRouter()
 const activeTab = ref<'upcoming' | 'history'>('upcoming')
 const cancelModal = ref(false)
 const selectedId = ref<string | null>(null)
-const calendarSubscriptionUrl = ref<string | null>(null)
-const calendarActionPending = ref(false)
-const addToast = inject('addToast') as
-  | ((message: string, type?: 'success' | 'error' | 'info') => void)
-  | undefined
 
 const upcoming = computed(() =>
   lecturesStore.registeredLectures.map((l) => ({ ...l, status: 'registered' })),
@@ -33,98 +26,6 @@ onMounted(async () => {
   if (auth.user) await lecturesStore.fetchRegisteredForCurrentUser()
 })
 
-async function downloadLectureIcs(id: string) {
-  try {
-    const blob = await usersApi.downloadEnrollmentIcs(id)
-    downloadFile(blob, `lecture-${id}.ics`)
-  } catch (err) {
-    addToast?.(err instanceof Error ? err.message : 'Не удалось скачать .ics', 'error')
-  }
-}
-
-async function downloadAllIcs() {
-  try {
-    const blob = await usersApi.downloadMyEnrollmentsIcs()
-    downloadFile(blob, 'my-lectures.ics')
-  } catch (err) {
-    addToast?.(err instanceof Error ? err.message : 'Не удалось скачать .ics', 'error')
-  }
-}
-
-async function getCalendarSubscriptionUrl() {
-  if (calendarSubscriptionUrl.value) return calendarSubscriptionUrl.value
-  const subscription = await usersApi.getCalendarSubscription()
-  calendarSubscriptionUrl.value = subscription.feedUrl
-  return subscription.feedUrl
-}
-
-async function copyText(value: string) {
-  if (navigator.clipboard?.writeText) {
-    try {
-      await navigator.clipboard.writeText(value)
-      return true
-    } catch {
-      // Browser may block async clipboard writes after awaiting the subscription request.
-    }
-  }
-
-  const textarea = document.createElement('textarea')
-  textarea.value = value
-  textarea.style.position = 'fixed'
-  textarea.style.left = '-9999px'
-  document.body.appendChild(textarea)
-  textarea.focus()
-  textarea.select()
-  const copied = document.execCommand('copy')
-  textarea.remove()
-  return copied
-}
-
-async function copyCalendarSubscriptionUrl() {
-  try {
-    calendarActionPending.value = true
-    const feedUrl = await getCalendarSubscriptionUrl()
-    if (!await copyText(feedUrl)) throw new Error('Браузер заблокировал копирование ссылки')
-    addToast?.('ICS-ссылка скопирована', 'success')
-  } catch (err) {
-    addToast?.(err instanceof Error ? err.message : 'Не удалось скопировать ссылку', 'error')
-  } finally {
-    calendarActionPending.value = false
-  }
-}
-
-async function syncWithGoogleCalendar() {
-  const googleWindow = window.open('about:blank', '_blank')
-
-  try {
-    calendarActionPending.value = true
-    const feedUrl = await getCalendarSubscriptionUrl()
-    const copied = await copyText(feedUrl)
-
-    const googleUrl = `https://calendar.google.com/calendar/r?cid=${encodeURIComponent(feedUrl)}`
-    if (googleWindow) {
-      googleWindow.opener = null
-      googleWindow.location.href = googleUrl
-    } else {
-      window.open(googleUrl, '_blank', 'noopener,noreferrer')
-    }
-    addToast?.(
-      copied
-        ? 'ICS-ссылка скопирована. Google Calendar открыт в новой вкладке.'
-        : 'Google Calendar открыт. Если ссылка не подставилась, скопируйте ICS-ссылку отдельно.',
-      copied ? 'success' : 'info',
-    )
-  } catch (err) {
-    googleWindow?.close()
-    addToast?.(
-      err instanceof Error ? err.message : 'Не удалось подготовить ссылку для Google Calendar',
-      'error',
-    )
-  } finally {
-    calendarActionPending.value = false
-  }
-}
-
 function openCancel(id: string) {
   selectedId.value = id
   cancelModal.value = true
@@ -145,25 +46,7 @@ async function confirmCancel() {
           Управляйте регистрациями, экспортируйте расписание и оставляйте отзывы.
         </p>
       </div>
-      <div class="calendar-actions">
+      <button class="btn-secondary">Экспорт в календарь</button>
-        <button
-          class="btn-primary"
-          :disabled="calendarActionPending"
-          @click="syncWithGoogleCalendar"
-        >
-          Синхронизировать с Google Calendar
-        </button>
-        <button
-          class="btn-secondary"
-          :disabled="calendarActionPending"
-          @click="copyCalendarSubscriptionUrl"
-        >
-          Скопировать ICS-ссылку
-        </button>
-        <button class="btn-secondary" @click="downloadAllIcs">
-          Скачать все мои лекции (.ics)
-        </button>
-      </div>
     </div>
 
     <div class="tabs">
@@ -193,7 +76,7 @@ async function confirmCancel() {
         </div>
         <div class="lecture-actions">
           <StatusBadge status="registered" />
-          <button class="btn-secondary btn-sm" @click="downloadLectureIcs(item.id)">Скачать .ics</button>
+          <button class="btn-secondary btn-sm">Добавить в календарь</button>
           <button class="btn-danger btn-sm" @click="openCancel(item.id)">Отменить</button>
         </div>
       </GlassCard>
@@ -250,13 +133,6 @@ async function confirmCancel() {
   gap: 12px;
   flex-wrap: wrap;
 }
-.calendar-actions {
-  display: flex;
-  align-items: center;
-  justify-content: flex-end;
-  gap: 8px;
-  flex-wrap: wrap;
-}
 .tabs {
   display: inline-flex;
   width: fit-content;

frontend/src/views/teacher/TeacherAnalyticsView.vue

@@ -9,6 +9,7 @@ import { mapApiReview } from '@/api/mappers'
 import { useLecturesStore } from '@/stores/lectures'
 import { useAuthStore } from '@/stores/auth'
 
+const ratingTrend = [4.2, 4.5, 4.6, 4.8, 4.7]
 const lecturesStore = useLecturesStore()
 const auth = useAuthStore()
 const reviews = ref<Review[]>([])
@@ -16,9 +17,8 @@ const reviews = ref<Review[]>([])
 const positive = computed(() => reviews.value.filter((r) => r.sentiment === 'positive').length)
 const neutral = computed(() => reviews.value.filter((r) => r.sentiment === 'neutral').length)
 const negative = computed(() => reviews.value.filter((r) => r.sentiment === 'negative').length)
-const total = computed(() => reviews.value.length)
+const total = computed(() => reviews.value.length || 1)
-const pct = (value: number) => (total.value ? Math.round((value / total.value) * 100) : 0)
+const pct = (value: number) => Math.round((value / total.value) * 100)
-const ratio = (value: number) => `${value}/${total.value}`
 
 async function fetchTeacherAnalytics() {
   if (!auth.user?.id) return
@@ -39,28 +39,37 @@ watch(() => auth.user?.id, fetchTeacherAnalytics)
     <h1 class="page-title">Аналитика преподавателя</h1>
 
     <div class="grid">
+      <GlassCard>
+        <div class="section-title">Динамика оценок</div>
+        <div class="chart">
+          <div v-for="(value, i) in ratingTrend" :key="i" class="bar">
+            <div class="bar-fill" :style="{ height: `${value * 18}px` }"></div>
+            <span class="bar-label">Нед {{ i + 1 }}</span>
+          </div>
+        </div>
+        <div class="avg">Средняя оценка: 4.6</div>
+      </GlassCard>
+
       <GlassCard>
         <div class="section-title">Sentiment-анализ отзывов</div>
         <div class="sentiment">
           <div>
-            <div class="sentiment-label">Позитивные {{ ratio(positive) }}</div>
+            <div class="sentiment-label">Позитивные {{ pct(positive) }}%</div>
-            <ProgressBar :value="pct(positive)" :max="100" :text="ratio(positive)" />
+            <ProgressBar :value="pct(positive)" :max="100" />
           </div>
           <div>
-            <div class="sentiment-label">Нейтральные {{ ratio(neutral) }}</div>
+            <div class="sentiment-label">Нейтральные {{ pct(neutral) }}%</div>
             <ProgressBar
               :value="pct(neutral)"
               :max="100"
-              :text="ratio(neutral)"
               color="linear-gradient(90deg, #7DD3FC, #BAE6FD)"
             />
           </div>
           <div>
-            <div class="sentiment-label">Негативные {{ ratio(negative) }}</div>
+            <div class="sentiment-label">Негативные {{ pct(negative) }}%</div>
             <ProgressBar
               :value="pct(negative)"
               :max="100"
-              :text="ratio(negative)"
               color="linear-gradient(90deg, #FCA5A5, #FECACA)"
             />
           </div>
@@ -108,6 +117,32 @@ watch(() => auth.user?.id, fetchTeacherAnalytics)
   grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
   gap: 16px;
 }
+.chart {
+  display: flex;
+  gap: 12px;
+  align-items: flex-end;
+  height: 160px;
+  padding: 10px 0;
+}
+.bar {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 6px;
+}
+.bar-fill {
+  width: 26px;
+  border-radius: 6px 6px 0 0;
+  background: linear-gradient(180deg, #22c55e, #86efac);
+}
+.bar-label {
+  font-size: 11px;
+  color: var(--color-text-secondary);
+}
+.avg {
+  margin-top: 6px;
+  font-weight: 600;
+}
 .sentiment {
   display: flex;
   flex-direction: column;

frontend/src/views/teacher/TeacherDashboardView.vue

@@ -20,6 +20,9 @@ const upcoming = computed(() =>
 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,
+)
 
 function fetchTeacherLectures() {
   if (!auth.user?.id) return
@@ -45,7 +48,13 @@ watch(() => auth.user?.id, fetchTeacherLectures)
     <div class="stats-row">
       <StatsWidget label="Предстоящие лекции" :value="upcoming.length" icon="📅" color="green" />
       <StatsWidget label="Записавшихся" :value="enrolledTotal" icon="👥" color="aqua" />
-      <StatsWidget label="Средняя оценка (0-1)" :value="'—'" icon="⭐" color="orange" />
+      <StatsWidget label="Средняя оценка" :value="'—'" icon="⭐" color="orange" />
+      <StatsWidget
+        label="Вовлеченность вне направления"
+        :value="`${visibility}%`"
+        icon="🌍"
+        color="purple"
+      />
     </div>
 
     <GlassCard>