test(commons): update AuditKind lock-in test to 16 members (SecuredWriteExpire from T15)

Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj

tests/ZB.MOM.WW.ScadaBridge.Commons.Tests/Types/Enums/AuditEnumTests.cs

@@ -23,7 +23,7 @@ public class AuditEnumTests
     }
 
     [Fact]
-    public void AuditKind_HasExactlyFifteenExpectedMembers()
+    public void AuditKind_HasExactlySixteenExpectedMembers()
     {
         var expected = new[]
         {
@@ -31,6 +31,7 @@ public class AuditEnumTests
             "NotifySend", "NotifyDeliver", "InboundRequest", "InboundAuthFailure",
             "CachedSubmit", "CachedResolve",
             "SecuredWriteSubmit", "SecuredWriteApprove", "SecuredWriteReject", "SecuredWriteExecute",
+            "SecuredWriteExpire",
             "ReconciliationAbandoned",
         };
         var actual = Enum.GetValues(typeof(AuditKind))
@@ -38,7 +39,7 @@ public class AuditEnumTests
             .Select(x => x.ToString())
             .ToArray();
 
-        Assert.Equal(15, actual.Length);
+        Assert.Equal(16, actual.Length);
         Assert.Equal(expected, actual);
     }