工单 增加 接收服务端推送的新工单，支持 推送增加消息

OrderSupportTicket/ViewModels/WorkOrderSummaryViewModel.cs

@@ -1,4 +1,4 @@
-using AllBase.Helper;
+using AllBase.Helper;
 using OrderSupportTicket.Models.Api;
 using OrderSupportTicket.Services;
 using System;
@@ -296,6 +296,8 @@ public sealed class WorkOrderSummaryViewModel : BindableBaseEx
 
     public void ApplySendResult(string status, string version)
     {
+        if (!IsAtLeastCurrentVersion(version))
+            return;
         if (!string.IsNullOrWhiteSpace(status))
         {
             Status = status;
@@ -309,6 +311,18 @@ public sealed class WorkOrderSummaryViewModel : BindableBaseEx
         HasNewMessage = false;
     }
 
+    public void EnsureUnreadCount(int count)
+    {
+        UnreadCount = Math.Max(UnreadCount, count);
+        if (UnreadCount > 0) HasNewMessage = true;
+    }
+
+    public void IncrementUnreadCount()
+    {
+        UnreadCount++;
+        HasNewMessage = true;
+    }
+
     public void MarkRead()
     {
         UnreadCount = 0;