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/Clients/AdminOperationsClient.cs

@@ -18,11 +18,17 @@ public sealed class AdminOperationsClient : IAdminOperationsClient
 
     private readonly IActorRef _proxy;
 
+    /// <summary>Initializes a new instance of the AdminOperationsClient.</summary>
+    /// <param name="registry">The actor registry to resolve the admin operations singleton proxy.</param>
     public AdminOperationsClient(ActorRegistry registry)
     {
         _proxy = registry.Get<AdminOperationsActorKey>();
     }
 
+    /// <summary>Starts a deployment via the admin operations actor.</summary>
+    /// <param name="createdBy">The username of who initiated the deployment.</param>
+    /// <param name="ct">The cancellation token.</param>
+    /// <returns>The deployment start result.</returns>
     public async Task<StartDeploymentResult> StartDeploymentAsync(string createdBy, CancellationToken ct)
     {
         var msg = new StartDeployment(createdBy, CorrelationId.NewId());