feat(native-alarms): optional MesReportable column in the native-source override CSV import (ScadaBridge#102 item 4)

CLI import no longer has to reset MES overrides to inherit; a legacy 4-column file
still parses and the Central UI import keeps the stored flag for it.

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

src/ZB.MOM.WW.ScadaBridge.CLI/Commands/InstanceCommands.cs

@@ -688,7 +688,7 @@ public static class InstanceCommands
         var importIdOption = new Option<int>("--instance-id") { Description = "Instance ID", Required = true };
         var importFileOption = new Option<string>("--file")
         {
-            Description = "Path to the override CSV file (columns: SourceName,Connection,SourceReference,Filter; blank field = inherited)",
+            Description = "Path to the override CSV file (columns: SourceName,Connection,SourceReference,Filter[,MesReportable]; blank field = inherited)",
             Required = true
         };
         var importCmd = new Command("import")
@@ -723,7 +723,7 @@ public static class InstanceCommands
 
             var overrides = parseResult.Rows
                 .Select(r => new NativeAlarmSourceOverrideEntry(
-                    r.SourceName, r.Connection, r.SourceReference, r.Filter))
+                    r.SourceName, r.Connection, r.SourceReference, r.Filter, r.MesReportable))
                 .ToList();
             return await CommandHelpers.ExecuteCommandAsync(
                 result, urlOption, formatOption, usernameOption, passwordOption,