feat: добавил отправку уведомлений по почте

backend/UniVerse.Api/Program.cs

@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.IdentityModel.Tokens;
 using Microsoft.OpenApi;
+using Quartz;
 using Serilog;
 using UniVerse.Api.BackgroundServices;
 using UniVerse.Api.Filters;
@@ -12,6 +13,7 @@ using UniVerse.Application.Interfaces;
 using UniVerse.Infrastructure.Services;
 using UniVerse.Infrastructure.Data;
 using UniVerse.Infrastructure.ExternalServices;
+using UniVerse.Infrastructure.Notifications;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -89,6 +91,17 @@ builder.Services.AddScoped<IGamificationService, GamificationService>();
 builder.Services.AddScoped<IAchievementService, AchievementService>();
 builder.Services.AddScoped<ILlmAnalysisService, LlmAnalysisService>();
 builder.Services.AddScoped<IScheduleSyncService, ScheduleSyncService>();
+builder.Services.AddScoped<INotificationService, NotificationService>();
+builder.Services.AddScoped<INotificationProvider, EmailNotificationProvider>();
+builder.Services.AddSingleton<INotificationScheduler, QuartzNotificationScheduler>();
+builder.Services.AddTransient<NotificationJob>();
+builder.Services.Configure<EmailNotificationOptions>(builder.Configuration.GetSection("Email:Smtp"));
+
+builder.Services.AddQuartz();
+builder.Services.AddQuartzHostedService(options =>
+{
+    options.WaitForJobsToComplete = true;
+});
 
 // --- HTTP Clients ---
 builder.Services.AddHttpClient<ILlmClient, LlmClient>(client =>