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/Hubs/HubServiceCollectionExtensions.cs

@@ -25,6 +25,7 @@ public static class HubServiceCollectionExtensions
     /// }
     /// </code>
     /// </summary>
+    /// <param name="builder">The Akka configuration builder.</param>
     public static AkkaConfigurationBuilder WithOtOpcUaSignalRBridges(this AkkaConfigurationBuilder builder)
     {
         builder.WithActors((system, registry, resolver) =>