Improve XML documentation coverage across src modules and sync generated analysis artifacts.

src/NATS.Server/Mqtt/MqttQoS1Tracker.cs

@@ -25,6 +25,9 @@ public sealed class MqttQoS1Tracker
     /// Registers an outgoing QoS 1 message and assigns a packet ID.
     /// Returns the assigned packet ID.
     /// </summary>
+    /// <param name="topic">MQTT topic for the outbound message.</param>
+    /// <param name="payload">Outbound payload bytes.</param>
+    /// <param name="streamSequence">Optional JetStream stream sequence tied to this delivery.</param>
     public ushort Register(string topic, byte[] payload, ulong streamSequence = 0)
     {
         var id = GetNextPacketId();
@@ -44,6 +47,7 @@ public sealed class MqttQoS1Tracker
     /// Acknowledges receipt of a PUBACK for the given packet ID.
     /// Returns the pending message if found, or null.
     /// </summary>
+    /// <param name="packetId">MQTT packet identifier from PUBACK.</param>
     public QoS1PendingMessage? Acknowledge(ushort packetId)
     {
         return _pending.TryRemove(packetId, out var msg) ? msg : null;
@@ -69,6 +73,7 @@ public sealed class MqttQoS1Tracker
     /// <summary>
     /// Checks if a packet ID is pending acknowledgment.
     /// </summary>
+    /// <param name="packetId">MQTT packet identifier to check.</param>
     public bool IsPending(ushort packetId) => _pending.ContainsKey(packetId);
 
     /// <summary>Clears all pending messages.</summary>
@@ -90,10 +95,15 @@ public sealed class MqttQoS1Tracker
 /// </summary>
 public sealed class QoS1PendingMessage
 {
+    /// <summary>MQTT packet identifier assigned to this outbound QoS1 message.</summary>
     public ushort PacketId { get; init; }
+    /// <summary>MQTT topic associated with the message.</summary>
     public string Topic { get; init; } = string.Empty;
+    /// <summary>Outbound payload bytes awaiting PUBACK.</summary>
     public byte[] Payload { get; init; } = [];
+    /// <summary>UTC timestamp when this message was last sent.</summary>
     public DateTime SentAtUtc { get; set; }
+    /// <summary>Number of delivery attempts for this packet.</summary>
     public int DeliveryCount { get; set; } = 1;
 
     /// <summary>