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/Core/ZB.MOM.WW.OtOpcUa.Core/OpcUa/EquipmentNodeWalker.cs

@@ -182,6 +182,7 @@ public static class EquipmentNodeWalker
     ///     any legacy row that slipped past the check constraint or any future driver that
     ///     wants an opaque non-JSON reference.
     /// </remarks>
+    /// <param name="tagConfig">The tag configuration JSON or string.</param>
     internal static string ExtractFullName(string tagConfig)
     {
         if (string.IsNullOrWhiteSpace(tagConfig)) return tagConfig;

src/Core/ZB.MOM.WW.OtOpcUa.Core/OpcUa/GenericDriverNodeManager.cs

@@ -19,8 +19,10 @@ namespace ZB.MOM.WW.OtOpcUa.Core.OpcUa;
 /// </remarks>
 public class GenericDriverNodeManager(IDriver driver) : IDisposable
 {
+    /// <summary>Gets the underlying driver instance.</summary>
     protected IDriver Driver { get; } = driver ?? throw new ArgumentNullException(nameof(driver));
 
+    /// <summary>Gets the driver instance identifier.</summary>
     public string DriverInstanceId => Driver.DriverInstanceId;
 
     // Source tag (DriverAttributeInfo.FullName) → alarm-condition sink. Populated during
@@ -45,6 +47,8 @@ public class GenericDriverNodeManager(IDriver driver) : IDisposable
     ///     project's <c>OpcUaApplicationHost.PopulateAddressSpaces</c> wraps this call in a per-driver
     ///     try/catch that logs + leaves the driver's subtree empty until a Reinitialize succeeds.
     /// </summary>
+    /// <param name="builder">The address space builder to populate.</param>
+    /// <param name="ct">The cancellation token.</param>
     public async Task BuildAddressSpaceAsync(IAddressSpaceBuilder builder, CancellationToken ct)
     {
         ArgumentNullException.ThrowIfNull(builder);
@@ -79,6 +83,7 @@ public class GenericDriverNodeManager(IDriver driver) : IDisposable
         }
     }
 
+    /// <summary>Disposes the node manager and cleans up alarm subscriptions.</summary>
     public void Dispose()
     {
         if (_disposed) return;
@@ -106,12 +111,23 @@ public class GenericDriverNodeManager(IDriver driver) : IDisposable
         IAddressSpaceBuilder inner,
         ConcurrentDictionary<string, IAlarmConditionSink> sinks) : IAddressSpaceBuilder
     {
+        /// <summary>Adds a folder to the address space.</summary>
+        /// <param name="browseName">The browse name of the folder node.</param>
+        /// <param name="displayName">The display name of the folder node.</param>
         public IAddressSpaceBuilder Folder(string browseName, string displayName)
             => new CapturingBuilder(inner.Folder(browseName, displayName), sinks);
 
+        /// <summary>Adds a variable to the address space.</summary>
+        /// <param name="browseName">The browse name of the variable node.</param>
+        /// <param name="displayName">The display name of the variable node.</param>
+        /// <param name="attributeInfo">Metadata describing the variable's data type and properties.</param>
         public IVariableHandle Variable(string browseName, string displayName, DriverAttributeInfo attributeInfo)
             => new CapturingHandle(inner.Variable(browseName, displayName, attributeInfo), sinks);
 
+        /// <summary>Adds a property to the address space.</summary>
+        /// <param name="browseName">The browse name of the property node.</param>
+        /// <param name="dataType">The OPC UA data type of the property.</param>
+        /// <param name="value">The initial value of the property, or null.</param>
         public void AddProperty(string browseName, DriverDataType dataType, object? value)
             => inner.AddProperty(browseName, dataType, value);
     }
@@ -120,8 +136,11 @@ public class GenericDriverNodeManager(IDriver driver) : IDisposable
         IVariableHandle inner,
         ConcurrentDictionary<string, IAlarmConditionSink> sinks) : IVariableHandle
     {
+        /// <summary>Gets the full reference for the variable.</summary>
         public string FullReference => inner.FullReference;
 
+        /// <summary>Marks the variable as an alarm condition and registers its sink.</summary>
+        /// <param name="info">Configuration for the alarm condition.</param>
         public IAlarmConditionSink MarkAsAlarmCondition(AlarmConditionInfo info)
         {
             var sink = inner.MarkAsAlarmCondition(info);

src/Core/ZB.MOM.WW.OtOpcUa.Core/OpcUa/IdentificationFolderBuilder.cs

@@ -42,7 +42,9 @@ public static class IdentificationFolderBuilder
         "ManufacturerUri", "DeviceManualUri",
     };
 
-    /// <summary>True when the equipment row has at least one non-null Identification field.</summary>
+    /// <summary>Checks whether the equipment row has at least one non-null Identification field.</summary>
+    /// <param name="equipment">The equipment entity.</param>
+    /// <returns>True if any Identification field is non-null; otherwise false.</returns>
     public static bool HasAnyFields(Equipment equipment)
     {
         ArgumentNullException.ThrowIfNull(equipment);
@@ -58,10 +60,12 @@ public static class IdentificationFolderBuilder
     }
 
     /// <summary>
-    ///     Build the Identification sub-folder under <paramref name="equipmentBuilder"/>. No-op
-    ///     when every field is null. Returns the sub-folder builder (or null when no-op) so
-    ///     callers can attach additional nodes underneath if needed.
+    ///     Builds the Identification sub-folder under the given equipment builder. Returns the sub-folder builder
+    ///     (or null when no fields are present) so callers can attach additional nodes if needed.
     /// </summary>
+    /// <param name="equipmentBuilder">The equipment address space builder.</param>
+    /// <param name="equipment">The equipment entity with identification fields.</param>
+    /// <returns>The sub-folder builder, or null if no fields are present.</returns>
     public static IAddressSpaceBuilder? Build(IAddressSpaceBuilder equipmentBuilder, Equipment equipment)
     {
         ArgumentNullException.ThrowIfNull(equipmentBuilder);