docs: backfill XML documentation across 756 files

Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public
members surfaced by commentchecker — resolves 5,847 of 5,869 issues
(99.6%) across three /fixdocs passes.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/EndpointRouteBuilderExtensions.cs

@@ -17,6 +17,8 @@ public static class EndpointRouteBuilderExtensions
     /// Blazor pipeline but the only built-in components are the v2-native ones added in this
     /// library (e.g. <c>Deployments</c>, Task 52).
     /// </summary>
+    /// <typeparam name="TApp">The root component type for Razor pages.</typeparam>
+    /// <param name="app">The endpoint route builder.</param>
     public static IEndpointRouteBuilder MapAdminUI<TApp>(this IEndpointRouteBuilder app)
         where TApp : IComponent
     {
@@ -28,6 +30,10 @@ public static class EndpointRouteBuilderExtensions
         return app;
     }
 
+    /// <summary>
+    /// Adds AdminUI services to the dependency injection container.
+    /// </summary>
+    /// <param name="services">The service collection.</param>
     public static IServiceCollection AddAdminUI(this IServiceCollection services)
     {
         services.AddRazorComponents().AddInteractiveServerComponents();