feat(audit): ScriptTrace channel + RouteCall/ScriptRun/AttributeWrite/AttributeWait kinds

Flow Debugger (design 2026-09-05 §5.1): trace steps are audit rows. New
AuditChannel.ScriptTrace appended after Cluster and four kinds appended after
ManualFailover so stored ordinals never move; lock-in tests + alog.md §4 updated.

Claude-Session: https://claude.ai/code/session_01GSLkkHKz9JrAtmJjmQK3cP

tests/ZB.MOM.WW.ScadaBridge.Commons.Tests/Audit/ScriptTraceEnumTests.cs

@@ -0,0 +1,31 @@
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Audit;
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
+
+namespace ZB.MOM.WW.ScadaBridge.Commons.Tests.Audit;
+
+/// <summary>
+/// Flow Debugger (design 2026-09-05): the <c>ScriptTrace</c> channel and its four kinds must
+/// fit the central <c>AuditLog.Category</c>/<c>Kind</c> columns and never move existing ordinals.
+/// </summary>
+public class ScriptTraceEnumTests
+{
+    [Theory]
+    [InlineData(AuditKind.RouteCall)]
+    [InlineData(AuditKind.ScriptRun)]
+    [InlineData(AuditKind.AttributeWrite)]
+    [InlineData(AuditKind.AttributeWait)]
+    public void ScriptTraceKinds_FitTheCentralColumns(AuditKind kind)
+    {
+        // AuditLog.Category / Kind are nvarchar(32) (AuditLogEntityTypeConfiguration).
+        Assert.True(kind.ToString().Length <= 32);
+        Assert.True(AuditChannel.ScriptTrace.ToString().Length <= 32);
+        Assert.Equal($"ScriptTrace.{kind}", AuditFieldBuilders.BuildAction(AuditChannel.ScriptTrace, kind));
+    }
+
+    [Fact]
+    public void ScriptTrace_IsAppendedAfterCluster_SoExistingOrdinalsAreStable()
+    {
+        Assert.True((int)AuditChannel.ScriptTrace > (int)AuditChannel.Cluster);
+        Assert.True((int)AuditKind.RouteCall > (int)AuditKind.ManualFailover);
+    }
+}

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

@@ -12,7 +12,7 @@ public class AuditEnumTests
     [Fact]
     public void AuditChannel_HasExactlyExpectedMembers()
     {
-        var expected = new[] { "ApiOutbound", "DbOutbound", "Notification", "ApiInbound", "SecuredWrite", "Cluster" };
+        var expected = new[] { "ApiOutbound", "DbOutbound", "Notification", "ApiInbound", "SecuredWrite", "Cluster", "ScriptTrace" };
         var actual = Enum.GetValues(typeof(AuditChannel))
             .Cast<AuditChannel>()
             .Select(x => x.ToString())
@@ -23,7 +23,7 @@ public class AuditEnumTests
     }
 
     [Fact]
-    public void AuditKind_HasExactlySeventeenExpectedMembers()
+    public void AuditKind_HasExactlyTwentyOneExpectedMembers()
     {
         var expected = new[]
         {
@@ -34,13 +34,14 @@ public class AuditEnumTests
             "SecuredWriteExpire",
             "ReconciliationAbandoned",
             "ManualFailover",
+            "RouteCall", "ScriptRun", "AttributeWrite", "AttributeWait",
         };
         var actual = Enum.GetValues(typeof(AuditKind))
             .Cast<AuditKind>()
             .Select(x => x.ToString())
             .ToArray();
 
-        Assert.Equal(17, actual.Length);
+        Assert.Equal(21, actual.Length);
         Assert.Equal(expected, actual);
     }