完善 MCS 桌面代理与开炼机动作同步，修复原料相关菜单权限，桌面端新增上辅机 MES 菜单。

Co-authored-by: Cursor <cursoragent@cursor.com>

yy-admin-master/YY.Admin/ViewModels/Base/BaseViewModel.cs

@@ -110,33 +110,69 @@ namespace YY.Admin.ViewModels
                 _tokenCheckTimer.Interval = TimeSpan.FromMinutes(minutes);
         }
 
+        /// <summary>登录永不过期缓存，避免定时器在 UI 线程同步读库失败后回落到 30 分钟过期。</summary>
+        private static bool? _tokenNeverExpireCached;
+
         /// <summary>
         /// 是否开启登录永不过期
         /// </summary>
         private static bool IsTokenNeverExpireEnabled()
         {
+            if (_tokenNeverExpireCached.HasValue)
+                return _tokenNeverExpireCached.Value;
+
             try
             {
                 var cfg = Prism.Ioc.ContainerLocator.Current.Resolve<ISysConfigService>();
-                return cfg.GetConfigValue<bool>(ConfigConst.SysTokenNeverExpire).GetAwaiter().GetResult();
+                // 用 string 读取再解析，避免 Convert.ChangeType(bool) 异常被吞掉后误判为未开启
+                var raw = cfg.GetConfigValue<string>(ConfigConst.SysTokenNeverExpire).GetAwaiter().GetResult();
+                var enabled = ParseNeverExpireFlag(raw);
+                _tokenNeverExpireCached = enabled;
+                return enabled;
             }
             catch
             {
-                return false;
+                // 读配置失败时按「永不过期」处理，避免误踢回登录页
+                return true;
             }
         }
 
+        private static bool ParseNeverExpireFlag(string? raw)
+        {
+            if (string.IsNullOrWhiteSpace(raw))
+                return true;
+            if (bool.TryParse(raw, out var b))
+                return b;
+            return raw.Trim() is "1" or "Y" or "y" or "yes" or "YES" or "on" or "ON";
+        }
+
         /// <summary>
-        /// 登录设置保存后刷新检查间隔（已启动定时器时立即生效）
+        /// 登录设置保存后刷新检查间隔 / 永不过期策略（已启动定时器时立即生效）
         /// </summary>
         public static void RefreshTokenCheckIntervalFromConfig()
         {
+            _tokenNeverExpireCached = null;
+            if (IsTokenNeverExpireEnabled())
+            {
+                StopTokenCheckTimer();
+                return;
+            }
+
             ApplyTokenCheckIntervalFromConfig();
+            if (_tokenCheckTimer != null && !_tokenCheckTimer.IsEnabled && UserContext?.Token != null)
+                _tokenCheckTimer.Start();
         }
 
         // 启动定时器的方法
         public static void StartTokenCheckTimer()
         {
+            _tokenNeverExpireCached = null;
+            if (IsTokenNeverExpireEnabled())
+            {
+                StopTokenCheckTimer();
+                return;
+            }
+
             if (_tokenCheckTimer == null)
             {
                 _tokenCheckTimer = new DispatcherTimer();