feat: добавил напоминания о лекциях

backend/UniVerse.Infrastructure/Notifications/QuartzNotificationScheduler.cs

@@ -19,13 +19,17 @@ public class QuartzNotificationScheduler : INotificationScheduler
         _logger = logger;
     }
 
-    public async Task<ScheduledNotificationResponse> ScheduleAsync(NotificationMessage message, DateTimeOffset sendAt, CancellationToken cancellationToken = default)
+    public async Task<ScheduledNotificationResponse> ScheduleAsync(
+        NotificationMessage message,
+        DateTimeOffset sendAt,
+        string? jobId = null,
+        CancellationToken cancellationToken = default)
     {
         if (sendAt <= DateTimeOffset.UtcNow)
             throw new ArgumentException("Scheduled notification time must be in the future.", nameof(sendAt));
 
         var scheduler = await _schedulerFactory.GetScheduler(cancellationToken);
-        var jobId = Guid.NewGuid().ToString("N");
+        jobId ??= Guid.NewGuid().ToString("N");
         var jobKey = new JobKey(jobId, NotificationGroup);
         var payload = JsonSerializer.Serialize(message);
 
@@ -45,4 +49,14 @@ public class QuartzNotificationScheduler : INotificationScheduler
 
         return new ScheduledNotificationResponse(jobId, sendAt);
     }
+
+    public async Task CancelAsync(string jobId, CancellationToken cancellationToken = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(jobId);
+
+        var scheduler = await _schedulerFactory.GetScheduler(cancellationToken);
+        var deleted = await scheduler.DeleteJob(new JobKey(jobId, NotificationGroup), cancellationToken);
+        if (deleted)
+            _logger.LogInformation("Cancelled notification job {JobId}", jobId);
+    }
 }