feat(native-alarms): per-binding IsMesReportable on native alarm source bindings (ScadaBridge#59)

TemplateNativeAlarmSource.IsMesReportable + tri-state InstanceNativeAlarmSourceOverride
.IsMesReportableOverride flatten onto ResolvedNativeAlarmSource; NativeAlarmActor stamps every
mirrored condition and InstanceActor the quiet-binding placeholder, so ScriptAlarm,
Alarms.MesReportableAsync() and the #60 wire fields carry it. Additive to the 900-999 severity band.
Migration AddNativeAlarmSourceMesReportable. Management commands, CLI --mes-reportable, Central UI
(template dialog checkbox, instance override select), Transport DTOs/importer/diff and the revision
hash (true-only, so existing hashes are unchanged) carry it.

Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV

src/ZB.MOM.WW.ScadaBridge.Transport/Serialization/EntityDtos.cs

@@ -192,7 +192,9 @@ public sealed record TemplateNativeAlarmSourceDto(
     string? ConditionFilter,
     bool IsLocked,
     bool IsInherited,
-    bool LockedInDerived);
+    bool LockedInDerived,
+    // Additive trailing field: false on bundles written before it existed.
+    bool IsMesReportable = false);
 
 public sealed record TemplateAttributeDto(
     string Name,
@@ -407,7 +409,9 @@ public sealed record InstanceNativeAlarmSourceOverrideDto(
     string SourceCanonicalName,
     string? ConnectionNameOverride,
     string? SourceReferenceOverride,
-    string? ConditionFilterOverride);
+    string? ConditionFilterOverride,
+    // Additive trailing field: null ("keep inherited") on bundles written before it existed.
+    bool? IsMesReportableOverride = null);
 
 public sealed record InstanceConnectionBindingDto(
     string AttributeName,

src/ZB.MOM.WW.ScadaBridge.Transport/Serialization/EntitySerializer.cs

@@ -104,7 +104,8 @@ public sealed class EntitySerializer
                         ConditionFilter: n.ConditionFilter,
                         IsLocked: n.IsLocked,
                         IsInherited: n.IsInherited,
-                        LockedInDerived: n.LockedInDerived)).ToList(),
+                        LockedInDerived: n.LockedInDerived,
+                        IsMesReportable: n.IsMesReportable)).ToList(),
                 };
             }).ToList(),
             SharedScripts: aggregate.SharedScripts.Select(s => new SharedScriptDto(
@@ -292,7 +293,8 @@ public sealed class EntitySerializer
                     SourceCanonicalName: o.SourceCanonicalName,
                     ConnectionNameOverride: o.ConnectionNameOverride,
                     SourceReferenceOverride: o.SourceReferenceOverride,
-                    ConditionFilterOverride: o.ConditionFilterOverride)).ToList(),
+                    ConditionFilterOverride: o.ConditionFilterOverride,
+                    IsMesReportableOverride: o.IsMesReportableOverride)).ToList(),
                 // Connection bindings reference their DataConnection by NAME — the
                 // numeric DataConnectionId FK can't survive a cross-environment
                 // bundle, so the importer resolves ConnectionName→target FK at
@@ -386,6 +388,7 @@ public sealed class EntitySerializer
                         IsLocked = n.IsLocked,
                         IsInherited = n.IsInherited,
                         LockedInDerived = n.LockedInDerived,
+                        IsMesReportable = n.IsMesReportable,
                     });
                 }
                 return t;
@@ -621,6 +624,7 @@ public sealed class EntitySerializer
                         ConnectionNameOverride = o.ConnectionNameOverride,
                         SourceReferenceOverride = o.SourceReferenceOverride,
                         ConditionFilterOverride = o.ConditionFilterOverride,
+                        IsMesReportableOverride = o.IsMesReportableOverride,
                     });
                 }
                 foreach (var b in dto.ConnectionBindings)