1、删除无用类

2、调整定时逻辑，将定时改为框架的事件总线
3、电梯业务逻辑代码调整

common/Tnb.Common.Core/EventBus/Sources/TaskStatusChangeSource.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using JNPF.EventBus;
+using SqlSugar;
+
+namespace Tnb.Common.Core.EventBus.Sources
+{
+    public class TaskStatusChangeSource : IEventSource
+    {
+        /// <summary>
+        /// 构造函数.
+        /// </summary>
+        /// <param name="eventId">事件ID.</param>
+        /// <param name="connectionConfig">数据库连接配置.</param>
+        /// <param name="entity">实体.</param>
+        public TaskStatusChangeSource(string eventId, object payload)
+        {
+            EventId = eventId;
+            Payload = payload;
+        }
+
+        ///// <summary>
+        ///// 数据库连接配置.
+        ///// </summary>
+        //public ConnectionConfigOptions ConnectionConfig { get; set; }
+
+        /// <summary>
+        /// 事件 Id.
+        /// </summary>
+        public string EventId { get; }
+
+        /// <summary>
+        /// 事件承载（携带）数据.
+        /// </summary>
+        public object Payload { get; }
+
+        /// <summary>
+        /// 取消任务 Token.
+        /// </summary>
+        /// <remarks>用于取消本次消息处理.</remarks>
+        public CancellationToken CancellationToken { get; }
+
+        /// <summary>
+        /// 事件创建时间.
+        /// </summary>
+        public DateTime CreatedTime { get; } = DateTime.UtcNow;
+    }
+}