Creation of EF Core Migrations - these execute using EF Tools, but are not integrated to run programmatically

Oqtane.Server/Migrations/01000101_AddAdditionColumnToNotifications.cs

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+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Oqtane.Migrations.EntityBuilders;
+using Oqtane.Repository;
+
+namespace Oqtane.Migrations
+{
+    [DbContext(typeof(TenantDBContext))]
+    [Migration("Tenant.01.00.01.01")]
+    public class AddAdditionColumnToNotifications : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            //Add Column to Notification table
+            var notificationEntityBuilder = new NotificationEntityBuilder(migrationBuilder);
+            notificationEntityBuilder.AddDateTimeColumn("SendOn", true);
+
+            migrationBuilder.Sql(
+                @"
+                    UPDATE Notification
+                    SET SendOn = CreatedOn
+                    WHERE SendOn IS NULL;
+                ");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            //Drop Column from Notification table
+            var notificationEntityBuilder = new NotificationEntityBuilder(migrationBuilder);
+            notificationEntityBuilder.DropColumn("SendOn");
+        }
+    }
+}