feat(adminui): editable Modbus tag list via CollectionEditor

tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/ModbusDriverPageFormSerializationTests.cs

@@ -2,6 +2,7 @@ using System.Text.Json;
 using System.Text.Json.Serialization;
 using Shouldly;
 using Xunit;
+using ZB.MOM.WW.OtOpcUa.AdminUI.Components.Pages.Clusters.Drivers;
 using ZB.MOM.WW.OtOpcUa.Driver.Modbus;
 
 namespace ZB.MOM.WW.OtOpcUa.AdminUI.Tests;
@@ -14,6 +15,12 @@ public sealed class ModbusDriverPageFormSerializationTests
         WriteIndented = false,
     };
 
+    private static readonly JsonSerializerOptions TestJsonOpts = new()
+    {
+        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+        UnmappedMemberHandling = JsonUnmappedMemberHandling.Skip,
+    };
+
     [Fact]
     public void RoundTrip_PreservesKnownFields()
     {
@@ -104,4 +111,44 @@ public sealed class ModbusDriverPageFormSerializationTests
         back.ShouldNotBeNull();
         back.ProbeTimeoutSeconds.ShouldBe(10);
     }
+
+    [Fact]
+    public void TagRow_round_trips_through_definition()
+    {
+        var row = new ModbusDriverPage.ModbusTagRow
+        {
+            Name = "Pump1_Speed", Region = ModbusRegion.HoldingRegisters, Address = 40001,
+            DataType = ModbusDataType.Int16, Writable = true,
+        };
+        var def = row.ToDefinition();
+        var back = ModbusDriverPage.ModbusTagRow.FromDefinition(def);
+
+        back.Name.ShouldBe("Pump1_Speed");
+        back.Address.ShouldBe(40001);
+        back.DataType.ShouldBe(ModbusDataType.Int16);
+        back.Writable.ShouldBeTrue();
+    }
+
+    [Fact]
+    public void Tag_list_survives_options_serialize_round_trip()
+    {
+        var tags = new List<ModbusTagDefinition>
+        {
+            new("A", ModbusRegion.HoldingRegisters, 1, ModbusDataType.Int16),
+            new("B", ModbusRegion.Coils, 2, ModbusDataType.Bool),
+        };
+        var opts = new ModbusDriverPage.FormModel().ToOptions(tags);
+        var json = JsonSerializer.Serialize(opts, TestJsonOpts);
+        var back = JsonSerializer.Deserialize<ModbusDriverOptions>(json, TestJsonOpts)!;
+        back.Tags.Count.ShouldBe(2);
+        back.Tags[0].Name.ShouldBe("A");
+    }
+
+    [Fact]
+    public void ValidateRow_rejects_duplicate_name()
+    {
+        var rows = new List<ModbusDriverPage.ModbusTagRow> { new() { Name = "A" } };
+        ModbusDriverPage.ModbusTagRow.ValidateRow(new() { Name = "A" }, rows, null)
+            .ShouldNotBeNull();
+    }
 }