Auto: ablegacy-8 — per-tag deadband / change filter

Closes #251

src/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy.Cli/Commands/SubscribeCommand.cs

@@ -24,6 +24,16 @@ public sealed class SubscribeCommand : AbLegacyCommandBase
         "Publishing interval in milliseconds (default 1000).")]
     public int IntervalMs { get; init; } = 1000;
 
+    [CommandOption("deadband-absolute", Description =
+        "PR 8 — absolute change filter. Suppress notifications until |new - prev| >= this value. " +
+        "Booleans bypass; strings + status changes always publish.")]
+    public double? DeadbandAbsolute { get; init; }
+
+    [CommandOption("deadband-percent", Description =
+        "PR 8 — percent-of-previous change filter. Suppress notifications until " +
+        "|new - prev| >= |prev * pct / 100|. prev=0 always publishes.")]
+    public double? DeadbandPercent { get; init; }
+
     public override async ValueTask ExecuteAsync(IConsole console)
     {
         ConfigureLogging();
@@ -35,7 +45,9 @@ public sealed class SubscribeCommand : AbLegacyCommandBase
             DeviceHostAddress: Gateway,
             Address: Address,
             DataType: DataType,
-            Writable: false);
+            Writable: false,
+            AbsoluteDeadband: DeadbandAbsolute,
+            PercentDeadband: DeadbandPercent);
         var options = BuildOptions([tag]);
 
         await using var driver = new AbLegacyDriver(options, DriverInstanceId);