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.Configuration/Entities/ConfigAuditLog.cs

@@ -6,21 +6,28 @@ namespace ZB.MOM.WW.OtOpcUa.Configuration.Entities;
 /// </summary>
 public sealed class ConfigAuditLog
 {
+    /// <summary>Gets or sets the unique audit log identifier.</summary>
     public long AuditId { get; set; }
 
+    /// <summary>Gets or sets the timestamp of the audit event.</summary>
     public DateTime Timestamp { get; set; } = DateTime.UtcNow;
 
+    /// <summary>Gets or sets the principal (user or service) that initiated the event.</summary>
     public required string Principal { get; set; }
 
     /// <summary>DraftCreated | DraftEdited | Published | RolledBack | NodeApplied | CredentialAdded | CredentialDisabled | ClusterCreated | NodeAdded | ExternalIdReleased | CrossClusterNamespaceAttempt | OpcUaAccessDenied | …</summary>
     public required string EventType { get; set; }
 
+    /// <summary>Gets or sets the cluster identifier associated with the event, if applicable.</summary>
     public string? ClusterId { get; set; }
 
+    /// <summary>Gets or sets the node identifier associated with the event, if applicable.</summary>
     public string? NodeId { get; set; }
 
+    /// <summary>Gets or sets the generation identifier associated with the event, if applicable.</summary>
     public long? GenerationId { get; set; }
 
+    /// <summary>Gets or sets additional event details in JSON format.</summary>
     public string? DetailsJson { get; set; }
 
     /// <summary>