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;
 }