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.Runtime/Health/DbHealthProbeActor.cs

@@ -23,11 +23,16 @@ public sealed class DbHealthProbeActor : ReceiveActor, IWithTimers
     private readonly ILoggingAdapter _log = Context.GetLogger();
     private DbHealthStatus _last = new(false, DateTime.MinValue, "not probed yet");
 
+    /// <summary>Gets or sets the timer scheduler for periodic health probes.</summary>
     public ITimerScheduler Timers { get; set; } = null!;
 
+    /// <summary>Creates a Props instance for the DbHealthProbeActor.</summary>
+    /// <param name="dbFactory">The factory for creating ConfigDb contexts.</param>
     public static Props Props(IDbContextFactory<OtOpcUaConfigDbContext> dbFactory) =>
         Akka.Actor.Props.Create(() => new DbHealthProbeActor(dbFactory));
 
+    /// <summary>Initializes a new instance of the <see cref="DbHealthProbeActor"/> class.</summary>
+    /// <param name="dbFactory">The factory for creating ConfigDb contexts.</param>
     public DbHealthProbeActor(IDbContextFactory<OtOpcUaConfigDbContext> dbFactory)
     {
         _dbFactory = dbFactory;
@@ -35,6 +40,7 @@ public sealed class DbHealthProbeActor : ReceiveActor, IWithTimers
         Receive<Tick>(_ => RunProbe());
     }
 
+    /// <inheritdoc />
     protected override void PreStart()
     {
         RunProbe();

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Health/PeerOpcUaProbeActor.cs

@@ -37,8 +37,16 @@ public sealed class PeerOpcUaProbeActor : ReceiveActor, IWithTimers
     private readonly Action<object>? _broadcastOverride;
     private readonly ILoggingAdapter _log = Context.GetLogger();
 
+    /// <summary>Gets or sets the timer scheduler for this actor.</summary>
     public ITimerScheduler Timers { get; set; } = null!;
 
+    /// <summary>Creates actor props for the peer OPC UA probe.</summary>
+    /// <param name="peer">The node identifier of the peer to probe.</param>
+    /// <param name="interval">Optional probe interval; defaults to DefaultProbeInterval.</param>
+    /// <param name="connectTimeout">Optional connection timeout; defaults to DefaultConnectTimeout.</param>
+    /// <param name="opcUaPort">The OPC UA port to connect to; defaults to DefaultOpcUaPort.</param>
+    /// <param name="broadcast">Optional custom broadcast delegate for probe results.</param>
+    /// <returns>Props configured to create a PeerOpcUaProbeActor.</returns>
     public static Props Props(
         NodeId peer,
         TimeSpan? interval = null,
@@ -52,6 +60,12 @@ public sealed class PeerOpcUaProbeActor : ReceiveActor, IWithTimers
             opcUaPort,
             broadcast));
 
+    /// <summary>Initializes a new instance of the PeerOpcUaProbeActor.</summary>
+    /// <param name="peer">The node identifier of the peer to probe.</param>
+    /// <param name="interval">The probe interval.</param>
+    /// <param name="connectTimeout">The connection timeout.</param>
+    /// <param name="opcUaPort">The OPC UA port to connect to.</param>
+    /// <param name="broadcastOverride">Optional custom broadcast delegate for probe results.</param>
     public PeerOpcUaProbeActor(
         NodeId peer,
         TimeSpan interval,
@@ -68,6 +82,7 @@ public sealed class PeerOpcUaProbeActor : ReceiveActor, IWithTimers
         ReceiveAsync<Tick>(_ => RunProbeAsync());
     }
 
+    /// <inheritdoc />
     protected override void PreStart() =>
         Timers.StartPeriodicTimer("probe", Tick.Instance, _interval);