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.ControlPlane/Audit/AuditWriterActor.cs

@@ -29,11 +29,16 @@ public sealed class AuditWriterActor : ReceiveActor, IWithTimers
     private readonly ILoggingAdapter _log = Context.GetLogger();
     private readonly Dictionary<Guid, AuditEvent> _buffer = new();
 
+    /// <summary>Gets or sets the timer scheduler for the actor.</summary>
     public ITimerScheduler Timers { get; set; } = null!;
 
+    /// <summary>Creates a Props factory for the AuditWriterActor.</summary>
+    /// <param name="dbFactory">The database context factory for creating ConfigDb connections.</param>
     public static Props Props(IDbContextFactory<OtOpcUaConfigDbContext> dbFactory) =>
         Akka.Actor.Props.Create(() => new AuditWriterActor(dbFactory));
 
+    /// <summary>Initializes a new instance of the AuditWriterActor class.</summary>
+    /// <param name="dbFactory">The database context factory for creating ConfigDb connections.</param>
     public AuditWriterActor(IDbContextFactory<OtOpcUaConfigDbContext> dbFactory)
     {
         _dbFactory = dbFactory;
@@ -41,6 +46,7 @@ public sealed class AuditWriterActor : ReceiveActor, IWithTimers
         Receive<Flush>(_ => FlushBuffer());
     }
 
+    /// <inheritdoc />
     protected override void PreStart()
     {
         Timers.StartPeriodicTimer("flush", Flush.Instance, FlushInterval);
@@ -86,12 +92,14 @@ public sealed class AuditWriterActor : ReceiveActor, IWithTimers
         }
     }
 
+    /// <inheritdoc />
     protected override void PreRestart(Exception reason, object message)
     {
         FlushBuffer();
         base.PreRestart(reason, message);
     }
 
+    /// <inheritdoc />
     protected override void PostStop()
     {
         FlushBuffer();