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/Cli/ZB.MOM.WW.OtOpcUa.Driver.Cli.Common/SnapshotFormatter.cs

@@ -23,6 +23,7 @@ public static class SnapshotFormatter
     /// </summary>
     /// <param name="tagName">The tag name to include in the output.</param>
     /// <param name="snapshot">The data value snapshot to format.</param>
+    /// <returns>The multi-line rendered snapshot.</returns>
     public static string Format(string tagName, DataValueSnapshot snapshot)
     {
         ArgumentNullException.ThrowIfNull(snapshot);
@@ -42,6 +43,7 @@ public static class SnapshotFormatter
     /// </summary>
     /// <param name="tagName">The tag name to include in the output.</param>
     /// <param name="result">The write result to format.</param>
+    /// <returns>The rendered write-result line.</returns>
     public static string FormatWrite(string tagName, WriteResult result)
     {
         ArgumentNullException.ThrowIfNull(result);
@@ -54,6 +56,7 @@ public static class SnapshotFormatter
     /// </summary>
     /// <param name="tagNames">The list of tag names to include as rows.</param>
     /// <param name="snapshots">The list of data value snapshots to format.</param>
+    /// <returns>The rendered table as a multi-line string.</returns>
     public static string FormatTable(
         IReadOnlyList<string> tagNames, IReadOnlyList<DataValueSnapshot> snapshots)
     {