refactor:将AppDataCenterService改为AppCenterService,将AppDataStorageService改为AppStorageService,将触发器的增删改成合并

DMS.Core/Models/Triggers/TriggerVariable.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace DMS.Core.Models.Triggers
+{
+    /// <summary>
+    /// 触发器与变量关联领域模型
+    /// </summary>
+    public class TriggerVariable
+    {
+        /// <summary>
+        /// 触发器与变量关联唯一标识符
+        /// </summary>
+        public int Id { get; set; }
+
+        /// <summary>
+        /// 外键，指向触发器定义的 Id
+        /// </summary>
+        public int TriggerDefinitionId { get; set; }
+
+        /// <summary>
+        /// 外键，指向变量的 Id
+        /// </summary>
+        public int VariableId { get; set; }
+    }
+}