fix: FASS2 状态机与 UDP 枢纽审查项

等锁超时、全路径签名、无锁窗口不下发、Fault 终态可等待、Pass+机构不再短路、Alarm 不杀单、catch-up 停在未完成站；VehicleCode=0/重复车号拒绝注册，Hub 已运行时不抢监听口；FileLogger 空目录可写。

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

StandardScene.Fass2Simulator/Fass2SimActionResolver.cs

@@ -100,11 +100,6 @@ namespace StandardScene.Fass2Simulator
                 return true;
             }
 
-            if (expected.StartStop == StartStopPass)
-            {
-                return true;
-            }
-
             if (expected.StartStop == StartStopControlStop)
             {
                 return false;

StandardScene.Fass2Simulator/Fass2SimFileLogger.cs

@@ -96,6 +96,11 @@ namespace StandardScene.Fass2Simulator
                 return;
             }
 
+            if (string.IsNullOrEmpty(_logDirectory))
+            {
+                _logDirectory = ResolveLogDirectory(null);
+            }
+
             Directory.CreateDirectory(_logDirectory);
             var fileName = $"app_{DateTime.Now:yyyyMMdd}.log";
             CurrentFilePath = Path.Combine(_logDirectory, fileName);