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.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Clusters/Drivers/DriverEditRouter.razor

@@ -59,7 +59,7 @@ else
             ["TwinCat"]              = typeof(TwinCATDriverPage),
             ["Focas"]                = typeof(FocasDriverPage),
             ["OpcUaClient"]          = typeof(OpcUaClientDriverPage),
-            ["Galaxy"]               = typeof(GalaxyDriverPage),
+            ["GalaxyMxGateway"]      = typeof(GalaxyDriverPage),
             ["Historian.Wonderware"] = typeof(HistorianWonderwareDriverPage),
         };
 

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Clusters/Drivers/GalaxyDriverPage.razor

@@ -208,7 +208,7 @@ else
     [Parameter] public string ClusterId { get; set; } = "";
     [Parameter] public string? DriverInstanceId { get; set; }
 
-    private const string DriverTypeKey = "Galaxy";
+    private const string DriverTypeKey = "GalaxyMxGateway";
 
     private bool IsNew => string.IsNullOrEmpty(DriverInstanceId);
 

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Drivers/DriverIdentitySection.razor

@@ -35,7 +35,7 @@
                         <option value="TwinCat">TwinCat</option>
                         <option value="Focas">Focas</option>
                         <option value="OpcUaClient">OpcUaClient</option>
-                        <option value="Galaxy">Galaxy</option>
+                        <option value="GalaxyMxGateway">Galaxy</option>
                         <option value="Historian.Wonderware">Historian.Wonderware</option>
                     </InputSelect>
                     <div class="form-text">Cannot be changed after creation — drives the actor type that owns this instance.</div>

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Drivers/Pickers/GalaxyAddressPickerBody.razor

@@ -126,7 +126,7 @@
         try
         {
             var json = GetConfigJson() ?? "{}";
-            var result = await BrowserService.OpenAsync("Galaxy", json, default);
+            var result = await BrowserService.OpenAsync("GalaxyMxGateway", json, default);
             if (result.Ok) _token = result.Token;
             else _openError = result.Message;
         }