重构项目，将项目拆分（临时提交）

DMS.WPF/Services/Processors/CheckValueChangedProcessor.cs

@@ -0,0 +1,33 @@
+using DMS.Helper;
+using DMS.Models;
+
+namespace DMS.Services.Processors;
+
+public class CheckValueChangedProcessor : IVariableProcessor
+{
+    private readonly DataServices _dataServices;
+
+    public CheckValueChangedProcessor(DataServices dataServices)
+    {
+        _dataServices = dataServices;
+    }
+    public Task ProcessAsync(VariableContext context)
+    {
+        Variable newVariable = context.Data;
+        if (!_dataServices.AllVariables.TryGetValue(newVariable.Id, out Variable oldVariable))
+        {
+            NlogHelper.Warn($"检查变量值是否改变时在_dataServices.AllVariables中找不到Id:{newVariable.Id},Name:{newVariable.Name}的变量。");
+            context.IsHandled = true;
+            return Task.CompletedTask;
+        }
+
+        if (newVariable.DataValue == oldVariable.DataValue)
+        {
+            // 值没有变化，直接完成
+            context.IsHandled = true;
+        }
+        
+        // 在这里处理 context.Data
+        return Task.CompletedTask;
+    }
+}