Expand XML docs across bridge and test code

src/ZB.MOM.WW.LmxOpcUa.Host/OpcUa/LmxOpcUaServer.cs

@@ -16,7 +16,14 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
         private readonly PerformanceMetrics _metrics;
         private LmxNodeManager? _nodeManager;
 
+        /// <summary>
+        /// Gets the custom node manager that publishes the Galaxy-backed namespace.
+        /// </summary>
         public LmxNodeManager? NodeManager => _nodeManager;
+
+        /// <summary>
+        /// Gets the number of active OPC UA sessions currently connected to the server.
+        /// </summary>
         public int ActiveSessionCount
         {
             get
@@ -26,6 +33,12 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
             }
         }
 
+        /// <summary>
+        /// Initializes a custom OPC UA server for the specified Galaxy namespace.
+        /// </summary>
+        /// <param name="galaxyName">The Galaxy name used to construct the namespace URI and product URI.</param>
+        /// <param name="mxAccessClient">The runtime client used by the node manager for live data access.</param>
+        /// <param name="metrics">The metrics collector shared with the node manager.</param>
         public LmxOpcUaServer(string galaxyName, IMxAccessClient mxAccessClient, PerformanceMetrics metrics)
         {
             _galaxyName = galaxyName;
@@ -33,6 +46,7 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
             _metrics = metrics;
         }
 
+        /// <inheritdoc />
         protected override MasterNodeManager CreateMasterNodeManager(IServerInternal server, ApplicationConfiguration configuration)
         {
             var namespaceUri = $"urn:{_galaxyName}:LmxOpcUa";
@@ -42,6 +56,7 @@ namespace ZB.MOM.WW.LmxOpcUa.Host.OpcUa
             return new MasterNodeManager(server, configuration, null, nodeManagers.ToArray());
         }
 
+        /// <inheritdoc />
         protected override ServerProperties LoadServerProperties()
         {
             var properties = new ServerProperties