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.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/RawBrowseCommitMapper.cs

@@ -132,6 +132,11 @@ public static class RawBrowseCommitMapper
             return new FocasTagConfigModel { Address = address }.ToJson();
         if (Is(driverType, DriverTypeNames.S7))
             return new S7TagConfigModel { Address = address }.ToJson();
+        // MTConnect: the DataItem id. The driver also accepts "address"/"dataItemId", but the typed
+        // editor's canonical spelling is fullName — committing under the generic key below would open
+        // in that editor with an EMPTY id field and blank it on save.
+        if (Is(driverType, DriverTypeNames.MTConnect))
+            return new MTConnectTagConfigModel { FullName = address }.ToJson();
         if (Is(driverType, DriverTypeNames.Galaxy))
             return WriteSingleKey("attributeRef", address);