feat(mtconnect): typed AdminUI tag-config editor + browse round-trip (Task 18 Part A)

Registers the MTConnect typed tag editor in TagConfigEditorMap /
TagConfigValidator (keyed off DriverTypeNames.MTConnect, never a literal) and
adds the razor shell over Task 17's MTConnectTagConfigModel.

The shell stays trivial: the /probe-sourced mtCategory/mtType/mtSubType/units
row is rendered disabled + readonly with NO binding of any kind, and no
inferred-type hint is shown — MTConnectDataTypeInference.Infer() also keys on
the DataItem `representation`, which the tag-config model does not carry, so
calling it here would agree with the browse picker for ordinary items and
silently disagree for exactly the DATA_SET/TABLE/TIME_SERIES ones.

Also fixes the picker -> editor round trip, which was broken in both
directions:

- RawBrowseCommitMapper.BuildTagConfig had no MTConnect branch, so a committed
  tag landed as the generic {"address": "<dataItemId>"} while the model read
  only `fullName`. The data plane kept working (the driver accepts all three id
  spellings), so the only symptom was an empty DataItem-id field in the editor
  — and saving from that state stamped fullName:"" over the tag.
- MTConnectTagConfigModel.FromJson now accepts dataItemId/address as fallbacks
  (fixing tags committed before this change) and ToJson normalises onto
  `fullName`, dropping the aliases so the two spellings cannot drift.

tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/MTConnectBrowseCommitRoundTripTests.cs

@@ -0,0 +1,102 @@
+using System.Text.Json.Nodes;
+using Shouldly;
+using Xunit;
+using ZB.MOM.WW.OtOpcUa.AdminUI.Uns;
+using ZB.MOM.WW.OtOpcUa.AdminUI.Uns.TagEditors;
+using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
+
+namespace ZB.MOM.WW.OtOpcUa.AdminUI.Tests.Uns;
+
+/// <summary>
+///     Pins the browse-picker → typed-editor round trip for MTConnect, the driver's <b>primary</b>
+///     authoring path (a tag is committed from the universal browser, then confirmed/overridden in the
+///     typed editor).
+/// </summary>
+/// <remarks>
+///     <para>
+///         The defect this guards: <see cref="RawBrowseCommitMapper.BuildTagConfig"/> had no MTConnect
+///         branch, so a committed tag landed as the generic <c>{"address": "&lt;dataItemId&gt;"}</c>
+///         while <see cref="MTConnectTagConfigModel"/> read only <c>fullName</c>. The data plane kept
+///         working (the driver accepts all three id spellings), so the ONLY symptom was an empty
+///         DataItem-id field in the editor — and saving from that state stamped <c>fullName: ""</c>
+///         over the tag. Razor is exactly what this repo cannot unit-test, so both halves of the fix
+///         are pinned here in plain C#.
+///     </para>
+///     <para>
+///         Both halves are asserted: the mapper now writes the canonical <c>fullName</c> (fixes new
+///         commits), and the model accepts <c>dataItemId</c>/<c>address</c> as fallbacks (fixes tags
+///         already committed before the fix).
+///     </para>
+/// </remarks>
+[Trait("Category", "Unit")]
+public sealed class MTConnectBrowseCommitRoundTripTests
+{
+    [Fact]
+    public void BuildTagConfig_writes_the_canonical_fullName_key_for_MTConnect()
+    {
+        var json = RawBrowseCommitMapper.BuildTagConfig(DriverTypeNames.MTConnect, "avail");
+
+        var o = JsonNode.Parse(json)!.AsObject();
+        o["fullName"]!.GetValue<string>().ShouldBe("avail");
+        o.ContainsKey("address").ShouldBeFalse(
+            "the generic fallback key must not be used now that MTConnect has a typed editor");
+    }
+
+    [Fact]
+    public void A_browse_committed_tag_round_trips_through_the_typed_editor_model()
+    {
+        var committed = RawBrowseCommitMapper.BuildTagConfig(DriverTypeNames.MTConnect, "Xact");
+
+        var model = MTConnectTagConfigModel.FromJson(committed);
+
+        model.FullName.ShouldBe("Xact");
+        model.Validate().ShouldBeNull("a browse-committed tag must open in the editor already valid");
+        MTConnectTagConfigModel.FromJson(model.ToJson()).FullName.ShouldBe("Xact");
+    }
+
+    // ---- legacy blobs committed before the mapper fix -------------------------------------------
+
+    [Theory]
+    [InlineData("address")]
+    [InlineData("dataItemId")]
+    public void FromJson_accepts_the_drivers_alternate_id_spellings(string key)
+    {
+        var model = MTConnectTagConfigModel.FromJson($$"""{"{{key}}":"Ypos"}""");
+
+        model.FullName.ShouldBe("Ypos");
+        model.Validate().ShouldBeNull();
+    }
+
+    [Fact]
+    public void FullName_wins_over_dataItemId_which_wins_over_address()
+    {
+        MTConnectTagConfigModel
+            .FromJson("""{"fullName":"a","dataItemId":"b","address":"c"}""")
+            .FullName.ShouldBe("a");
+
+        MTConnectTagConfigModel
+            .FromJson("""{"dataItemId":"b","address":"c"}""")
+            .FullName.ShouldBe("b");
+    }
+
+    [Fact]
+    public void A_blank_alias_does_not_shadow_a_populated_one()
+        => MTConnectTagConfigModel
+            .FromJson("""{"fullName":"   ","address":"c"}""")
+            .FullName.ShouldBe("c");
+
+    [Fact]
+    public void Saving_a_legacy_blob_normalises_it_onto_fullName_and_drops_the_aliases()
+    {
+        var model = MTConnectTagConfigModel.FromJson("""{"address":"Zpos","units":"MILLIMETER"}""");
+
+        var o = JsonNode.Parse(model.ToJson())!.AsObject();
+
+        o["fullName"]!.GetValue<string>().ShouldBe("Zpos");
+        o.ContainsKey("address").ShouldBeFalse(
+            "leaving a second id spelling behind lets the two drift apart on the next edit");
+        o.ContainsKey("dataItemId").ShouldBeFalse();
+        // Unrelated keys are still preserved — normalisation is not a purge.
+        o["units"]!.GetValue<string>().ShouldBe("MILLIMETER");
+    }
+}

tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/Uns/TagConfigDriverTypeNameGuardTests.cs

@@ -27,6 +27,7 @@ public sealed class TagConfigDriverTypeNameGuardTests
         DriverTypeNames.FOCAS,
         DriverTypeNames.OpcUaClient,
         DriverTypeNames.Calculation,
+        DriverTypeNames.MTConnect,
     ];
 
     [Theory]
@@ -46,6 +47,7 @@ public sealed class TagConfigDriverTypeNameGuardTests
         DriverTypeNames.TwinCAT,
         DriverTypeNames.FOCAS,
         DriverTypeNames.OpcUaClient,
+        DriverTypeNames.MTConnect,
     ];
 
     [Theory]