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.SiteRuntime/Actors/InstanceActor.cs

@@ -59,9 +59,16 @@ public class InstanceActor : ReceiveActor
     /// children are created and read back in <see cref="BuildAlarmStatesSnapshot"/>, which
     /// is the single place the flag is stamped — so a fired alarm (served from the retained
     /// event) and an unfired one (served from the bare fallback projection) cannot drift.
-    /// Native conditions have no entry here and correctly resolve to false.
+    /// Native conditions have no entry here (their flag is the binding's, set by NativeAlarmActor).
     /// </summary>
     private readonly Dictionary<string, bool> _alarmMesReportable = new();
+
+    /// <summary>
+    /// Native binding canonical name → <c>ResolvedNativeAlarmSource.IsMesReportable</c> (Gitea #59),
+    /// used to stamp the quiet-binding placeholder rows. Live condition rows are stamped by the
+    /// <see cref="NativeAlarmActor"/> that owns the binding.
+    /// </summary>
+    private readonly Dictionary<string, bool> _nativeAlarmMesReportable = new();
     private readonly Dictionary<string, IActorRef> _scriptActors = new();
     private readonly Dictionary<string, IActorRef> _alarmActors = new();
     private readonly Dictionary<string, IActorRef> _nativeAlarmActors = new();
@@ -1775,6 +1782,7 @@ public class InstanceActor : ReceiveActor
             {
                 Kind = _nativeAlarmKinds.GetValueOrDefault(binding, AlarmKind.NativeOpcUa),
                 NativeSourceCanonicalName = binding,
+                IsMesReportable = _nativeAlarmMesReportable.GetValueOrDefault(binding),
                 IsConfiguredPlaceholder = true
             });
         }
@@ -2250,6 +2258,7 @@ public class InstanceActor : ReceiveActor
             // Same kind handed to the NativeAlarmActor — used to stamp the
             // (cosmetic) kind badge on placeholder rows for quiet bindings.
             _nativeAlarmKinds[nativeSource.CanonicalName] = nativeKind;
+            _nativeAlarmMesReportable[nativeSource.CanonicalName] = nativeSource.IsMesReportable;
         }
 
         _logger.LogInformation(

src/ZB.MOM.WW.ScadaBridge.SiteRuntime/Actors/NativeAlarmActor.cs

@@ -496,6 +496,9 @@ public class NativeAlarmActor : ReceiveActor
             CurrentValue = t.CurrentValue,
             LimitValue = t.LimitValue,
             NativeSourceCanonicalName = _source.CanonicalName,
+            // Gitea #59: the binding-level flag ("every condition under this source is
+            // MES-reportable"). Additive to the 900-999 severity band the consumer applies.
+            IsMesReportable = _source.IsMesReportable,
             // MES alarm-status API §6.4: carried verbatim from the transition — the DCL
             // adapter already decided whether an ack instant applies (null while unacked,
             // cleared on re-raise), so the mirror never invents or suppresses one. A