docs(xmldoc): fill missing XML docs + strip tracking-ID comments across src

Adds <summary>/<param>/<returns>/<inheritdoc> where missing and removes
project bookkeeping IDs (task/tracking refs) from shipped code comments,
so the docs read cleanly and CommentChecker is quiet except for known
false positives (PLC/protocol terms, event/IEqualityComparer inheritdoc).
Doc/comment-only; no logic changed; solution builds clean.

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.Gateway/Mapping/HistorianTypeMapper.cs

@@ -47,6 +47,7 @@ internal static class HistorianTypeMapper
     /// provisioning hook skip deferred types without catching <see cref="NotSupportedException"/>.
     /// </summary>
     /// <param name="dataType">The driver-agnostic data type.</param>
+    /// <returns>True if the type is one of the nine historizable numeric types; otherwise false.</returns>
     public static bool IsHistorizable(DriverDataType dataType) => dataType switch
     {
         DriverDataType.Boolean