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/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware/Backend/HistorianClusterNodeState.cs

@@ -8,11 +8,22 @@ namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Backend
     /// </summary>
     public sealed class HistorianClusterNodeState
     {
+        /// <summary>Gets or sets the node name.</summary>
         public string Name { get; set; } = "";
+
+        /// <summary>Gets or sets a value indicating whether the node is healthy.</summary>
         public bool IsHealthy { get; set; }
+
+        /// <summary>Gets or sets the time until the node exits cooldown mode.</summary>
         public DateTime? CooldownUntil { get; set; }
+
+        /// <summary>Gets or sets the count of recent failures.</summary>
         public int FailureCount { get; set; }
+
+        /// <summary>Gets or sets the last error message.</summary>
         public string? LastError { get; set; }
+
+        /// <summary>Gets or sets the time of the last failure.</summary>
         public DateTime? LastFailureTime { get; set; }
     }
 }