feat(browse): Wave-0 Batch A — SupportsOnlineDiscovery gate, Commons ref, TagModal editor plumbing

Task 1: ITagDiscovery.SupportsOnlineDiscovery default member (=> false)
Task 2: Commons -> Core.Abstractions ProjectReference
Task 13: TagModal BuildEditorParameters passes DriverType + GetDriverConfigJson;
         all 7 typed tag editors declare the two new [Parameter]s (DynamicComponent
         throws on unmatched params, so every editor must accept them).

src/Core/ZB.MOM.WW.OtOpcUa.Commons/ZB.MOM.WW.OtOpcUa.Commons.csproj

@@ -10,4 +10,8 @@
         <PackageReference Include="ZB.MOM.WW.Audit"/>
     </ItemGroup>
 
+    <ItemGroup>
+        <ProjectReference Include="..\ZB.MOM.WW.OtOpcUa.Core.Abstractions\ZB.MOM.WW.OtOpcUa.Core.Abstractions.csproj"/>
+    </ItemGroup>
+
 </Project>

src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/ITagDiscovery.cs

@@ -30,4 +30,12 @@ public interface ITagDiscovery
 
     /// <summary>Post-connect re-discovery policy. Default preserves the original retry-until-stable behavior.</summary>
     DiscoveryRediscoverPolicy RediscoverPolicy => DiscoveryRediscoverPolicy.UntilStable;
+
+    /// <summary>
+    ///     True when <see cref="DiscoverAsync"/> enumerates the tag set from the live backend
+    ///     (browsable by the universal discovery browser), rather than replaying
+    ///     pre-declared/authored tags. Default false — flat-address drivers stay manual-entry.
+    ///     See docs/plans/2026-07-15-universal-discovery-browser-design.md §5.
+    /// </summary>
+    bool SupportsOnlineDiscovery => false;
 }

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/AbCipTagConfigEditor.razor

@@ -41,6 +41,10 @@
 @code {
     [Parameter] public string? ConfigJson { get; set; }
     [Parameter] public EventCallback<string> ConfigJsonChanged { get; set; }
+    /// <summary>DriverType of the selected driver — lets browse-capable pickers open a universal session.</summary>
+    [Parameter] public string DriverType { get; set; } = "";
+    /// <summary>Live accessor for the selected driver's DriverConfig JSON (browse connect config).</summary>
+    [Parameter] public Func<string> GetDriverConfigJson { get; set; } = () => "{}";
 
     private AbCipTagConfigModel _m = new();
     private string? _lastConfigJson;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/AbLegacyTagConfigEditor.razor

@@ -41,6 +41,10 @@
 @code {
     [Parameter] public string? ConfigJson { get; set; }
     [Parameter] public EventCallback<string> ConfigJsonChanged { get; set; }
+    /// <summary>DriverType of the selected driver — lets browse-capable pickers open a universal session.</summary>
+    [Parameter] public string DriverType { get; set; } = "";
+    /// <summary>Live accessor for the selected driver's DriverConfig JSON (browse connect config).</summary>
+    [Parameter] public Func<string> GetDriverConfigJson { get; set; } = () => "{}";
 
     private AbLegacyTagConfigModel _m = new();
     private string? _lastConfigJson;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/FocasTagConfigEditor.razor

@@ -39,6 +39,10 @@
 @code {
     [Parameter] public string? ConfigJson { get; set; }
     [Parameter] public EventCallback<string> ConfigJsonChanged { get; set; }
+    /// <summary>DriverType of the selected driver — lets browse-capable pickers open a universal session.</summary>
+    [Parameter] public string DriverType { get; set; } = "";
+    /// <summary>Live accessor for the selected driver's DriverConfig JSON (browse connect config).</summary>
+    [Parameter] public Func<string> GetDriverConfigJson { get; set; } = () => "{}";
 
     private FocasTagConfigModel _m = new();
     private string? _lastConfigJson;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/ModbusTagConfigEditor.razor

@@ -49,6 +49,10 @@
 @code {
     [Parameter] public string? ConfigJson { get; set; }
     [Parameter] public EventCallback<string> ConfigJsonChanged { get; set; }
+    /// <summary>DriverType of the selected driver — lets browse-capable pickers open a universal session.</summary>
+    [Parameter] public string DriverType { get; set; } = "";
+    /// <summary>Live accessor for the selected driver's DriverConfig JSON (browse connect config).</summary>
+    [Parameter] public Func<string> GetDriverConfigJson { get; set; } = () => "{}";
 
     private ModbusTagConfigModel _m = new();
     private string? _lastConfigJson;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/OpcUaClientTagConfigEditor.razor

@@ -11,6 +11,10 @@
 @code {
     [Parameter] public string? ConfigJson { get; set; }
     [Parameter] public EventCallback<string> ConfigJsonChanged { get; set; }
+    /// <summary>DriverType of the selected driver — lets browse-capable pickers open a universal session.</summary>
+    [Parameter] public string DriverType { get; set; } = "";
+    /// <summary>Live accessor for the selected driver's DriverConfig JSON (browse connect config).</summary>
+    [Parameter] public Func<string> GetDriverConfigJson { get; set; } = () => "{}";
 
     private OpcUaClientTagConfigModel _m = new();
     private string? _lastConfigJson;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/S7TagConfigEditor.razor

@@ -41,6 +41,10 @@
 @code {
     [Parameter] public string? ConfigJson { get; set; }
     [Parameter] public EventCallback<string> ConfigJsonChanged { get; set; }
+    /// <summary>DriverType of the selected driver — lets browse-capable pickers open a universal session.</summary>
+    [Parameter] public string DriverType { get; set; } = "";
+    /// <summary>Live accessor for the selected driver's DriverConfig JSON (browse connect config).</summary>
+    [Parameter] public Func<string> GetDriverConfigJson { get; set; } = () => "{}";
 
     private S7TagConfigModel _m = new();
     private string? _lastConfigJson;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagEditors/TwinCATTagConfigEditor.razor

@@ -41,6 +41,10 @@
 @code {
     [Parameter] public string? ConfigJson { get; set; }
     [Parameter] public EventCallback<string> ConfigJsonChanged { get; set; }
+    /// <summary>DriverType of the selected driver — lets browse-capable pickers open a universal session.</summary>
+    [Parameter] public string DriverType { get; set; } = "";
+    /// <summary>Live accessor for the selected driver's DriverConfig JSON (browse connect config).</summary>
+    [Parameter] public Func<string> GetDriverConfigJson { get; set; } = () => "{}";
 
     private TwinCATTagConfigModel _m = new();
     private string? _lastConfigJson;

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Uns/TagModal.razor

@@ -353,6 +353,8 @@
     {
         ["ConfigJson"] = _form.TagConfig,
         ["ConfigJsonChanged"] = EventCallback.Factory.Create<string>(this, v => _form.TagConfig = v),
+        ["DriverType"] = SelectedDriverType ?? "",
+        ["GetDriverConfigJson"] = (Func<string>)(() => SelectedDriverConfig),
     };
 
     // Cache a single NativeAlarmModel parse keyed on the current TagConfig string, so the two computed

tests/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions.Tests/TagDiscoveryDefaultsTests.cs

@@ -0,0 +1,21 @@
+using Shouldly;
+using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
+using Xunit;
+
+namespace ZB.MOM.WW.OtOpcUa.Core.Abstractions.Tests;
+
+public class TagDiscoveryDefaultsTests
+{
+    private sealed class MinimalDiscovery : ITagDiscovery
+    {
+        public Task DiscoverAsync(IAddressSpaceBuilder builder, CancellationToken ct) => Task.CompletedTask;
+    }
+
+    [Fact]
+    public void SupportsOnlineDiscovery_DefaultsToFalse() =>
+        ((ITagDiscovery)new MinimalDiscovery()).SupportsOnlineDiscovery.ShouldBeFalse();
+
+    [Fact]
+    public void RediscoverPolicy_DefaultRemainsUntilStable() =>
+        ((ITagDiscovery)new MinimalDiscovery()).RediscoverPolicy.ShouldBe(DiscoveryRediscoverPolicy.UntilStable);
+}