fix(galaxy): complete PR 7.2 rename — use canonical GalaxyMxGateway driver type

The driver/factory/seed use 'GalaxyMxGateway' (legacy 'Galaxy' was retired),
but the AdminUI editor router, GalaxyDriverPage, address picker, identity
dropdown, the Galaxy browser/probe, and DraftValidator still keyed on 'Galaxy'.
Result: the seeded GalaxyMxGateway driver couldn't be edited ('no editor
registered'), UI-created Galaxy drivers wrote a type with no factory, and a
SystemPlatform-bound GalaxyMxGateway driver failed publish validation.
Align all stragglers to GalaxyMxGateway (+ failing-test-first DraftValidator
coverage). ShouldStub's 'Galaxy' legacy safety-net left intact.

tests/Core/ZB.MOM.WW.OtOpcUa.Configuration.Tests/DraftValidatorTests.cs

@@ -122,15 +122,45 @@ public sealed class DraftValidatorTests
         DraftValidator.Validate(draft).ShouldContain(e => e.Code == "EquipmentIdNotDerived");
     }
 
-    /// <summary>Verifies that Galaxy driver cannot be placed in Equipment namespace.</summary>
+    /// <summary>Verifies that the canonical Galaxy driver type (GalaxyMxGateway, per PR 7.2 —
+    /// it was "Galaxy" pre-PR-7.2) is allowed in a SystemPlatform namespace, i.e. produces no
+    /// kind-mismatch error.</summary>
     [Fact]
-    public void Galaxy_driver_in_Equipment_namespace_is_rejected()
+    public void GalaxyMxGateway_driver_in_SystemPlatform_namespace_is_allowed()
+    {
+        var draft = new DraftSnapshot
+        {
+            GenerationId = 1, ClusterId = "c",
+            Namespaces = [new Namespace { NamespaceId = "ns-1", ClusterId = "c", NamespaceUri = "urn:x", Kind = NamespaceKind.SystemPlatform }],
+            DriverInstances = [new DriverInstance { DriverInstanceId = "d-1", ClusterId = "c", NamespaceId = "ns-1", Name = "drv", DriverType = "GalaxyMxGateway", DriverConfig = "{}" }],
+        };
+
+        DraftValidator.Validate(draft).ShouldNotContain(e => e.Code == "DriverNamespaceKindMismatch");
+    }
+
+    /// <summary>Verifies that the canonical Galaxy driver type cannot be placed in an Equipment namespace.</summary>
+    [Fact]
+    public void GalaxyMxGateway_driver_in_Equipment_namespace_is_rejected()
     {
         var draft = new DraftSnapshot
         {
             GenerationId = 1, ClusterId = "c",
             Namespaces = [new Namespace { NamespaceId = "ns-1", ClusterId = "c", NamespaceUri = "urn:x", Kind = NamespaceKind.Equipment }],
-            DriverInstances = [new DriverInstance { DriverInstanceId = "d-1", ClusterId = "c", NamespaceId = "ns-1", Name = "drv", DriverType = "Galaxy", DriverConfig = "{}" }],
+            DriverInstances = [new DriverInstance { DriverInstanceId = "d-1", ClusterId = "c", NamespaceId = "ns-1", Name = "drv", DriverType = "GalaxyMxGateway", DriverConfig = "{}" }],
+        };
+
+        DraftValidator.Validate(draft).ShouldContain(e => e.Code == "DriverNamespaceKindMismatch");
+    }
+
+    /// <summary>Verifies that a non-Galaxy driver cannot be placed in a SystemPlatform namespace.</summary>
+    [Fact]
+    public void NonGalaxy_driver_in_SystemPlatform_namespace_is_rejected()
+    {
+        var draft = new DraftSnapshot
+        {
+            GenerationId = 1, ClusterId = "c",
+            Namespaces = [new Namespace { NamespaceId = "ns-1", ClusterId = "c", NamespaceUri = "urn:x", Kind = NamespaceKind.SystemPlatform }],
+            DriverInstances = [new DriverInstance { DriverInstanceId = "d-1", ClusterId = "c", NamespaceId = "ns-1", Name = "drv", DriverType = "ModbusTcp", DriverConfig = "{}" }],
         };
 
         DraftValidator.Validate(draft).ShouldContain(e => e.Code == "DriverNamespaceKindMismatch");
@@ -145,7 +175,7 @@ public sealed class DraftValidatorTests
         {
             GenerationId = 1, ClusterId = "c-A",
             Namespaces = [new Namespace { NamespaceId = "ns-1", ClusterId = "c-B", NamespaceUri = "urn:x", Kind = NamespaceKind.Equipment }],
-            DriverInstances = [new DriverInstance { DriverInstanceId = "d-1", ClusterId = "c-A", NamespaceId = "ns-1", Name = "drv", DriverType = "Galaxy", DriverConfig = "{}" }],
+            DriverInstances = [new DriverInstance { DriverInstanceId = "d-1", ClusterId = "c-A", NamespaceId = "ns-1", Name = "drv", DriverType = "GalaxyMxGateway", DriverConfig = "{}" }],
             Equipment = [new Equipment { EquipmentUuid = uuid, EquipmentId = "EQ-wrong", Name = "BAD NAME", DriverInstanceId = "d-1", UnsLineId = "line-a", MachineCode = "m" }],
         };
 

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Browser.Tests/GalaxyDriverBrowserTests.cs

@@ -16,10 +16,10 @@ public sealed class GalaxyDriverBrowserTests
 {
     private readonly GalaxyDriverBrowser _sut = new();
 
-    /// <summary>The DriverType key must match the AdminUI's persisted "Galaxy" value
+    /// <summary>The DriverType key must match the AdminUI's persisted "GalaxyMxGateway" value
     /// so the factory wire-up picks the right browser implementation.</summary>
     [Fact]
-    public void DriverType_is_Galaxy() => _sut.DriverType.ShouldBe("Galaxy");
+    public void DriverType_is_GalaxyMxGateway() => _sut.DriverType.ShouldBe("GalaxyMxGateway");
 
     /// <summary>An empty Gateway.Endpoint must fail fast with a clear, endpoint-mentioning
     /// message rather than surfacing a downstream gRPC URI parse error.</summary>