[PM-20041] Deleting Notifications when Task is completed (#5896)

* mark all notifications associated with a security task as deleted when the task is completed

* fix spelling

* formatting

* refactor "Active" to "NonDeleted"

* refactor "Active" to "NonDeleted" for stored procedure

* only send notifications per user for each notification

* move notification status updates into the DB layer to save on multiple queries and insertions from the C#

* Only return UserIds from db layer

* omit userId from `MarkTaskAsCompletedCommand` query.

The userId from the notification will be used

* update UserIds

* consistency in comments regarding `taskId` and `UserId`

src/Core/NotificationCenter/Repositories/INotificationRepository.cs

@@ -32,4 +32,13 @@ public interface INotificationRepository : IRepository<Notification, Guid>
     /// </returns>
     Task<PagedResult<NotificationStatusDetails>> GetByUserIdAndStatusAsync(Guid userId, ClientType clientType,
         NotificationStatusFilter? statusFilter, PageOptions pageOptions);
+
+    /// <summary>
+    /// Marks notifications as deleted by a taskId.
+    /// </summary>
+    /// <param name="taskId">The unique identifier of the task.</param>
+    /// <returns>
+    /// A collection of UserIds for the notifications that are now marked as deleted.
+    /// </returns>
+    Task<IEnumerable<Guid>> MarkNotificationsAsDeletedByTask(Guid taskId);
 }