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.AbCip/CipSymbolObjectDecoder.cs

@@ -44,6 +44,8 @@ public static class CipSymbolObjectDecoder
     ///     the tail cause decoding to stop gracefully — the caller gets whatever it could parse
     ///     cleanly before the corruption.
     /// </summary>
+    /// <param name="buffer">The raw byte buffer from the Symbol Object response.</param>
+    /// <returns>An enumerable sequence of discovered CIP tags.</returns>
     public static IEnumerable<AbCipDiscoveredTag> Decode(byte[] buffer)
     {
         ArgumentNullException.ThrowIfNull(buffer);
@@ -91,6 +93,8 @@ public static class CipSymbolObjectDecoder
     ///     Split a <c>Program:MainProgram.StepIndex</c>-style name into its scope + local
     ///     parts. Names without the <c>Program:</c> prefix pass through unchanged.
     /// </summary>
+    /// <param name="fullName">The full tag name possibly prefixed with a program scope.</param>
+    /// <returns>A tuple containing the program scope (or null) and the simple name.</returns>
     internal static (string? programScope, string simpleName) SplitProgramScope(string fullName)
     {
         const string prefix = "Program:";
@@ -107,6 +111,8 @@ public static class CipSymbolObjectDecoder
     ///     caller treats those as <see cref="AbCipDataType.Structure"/> so the symbol is still
     ///     surfaced + downstream config can add a concrete type override.
     /// </summary>
+    /// <param name="typeCode">The CIP type code to map.</param>
+    /// <returns>The corresponding AbCipDataType, or null if unrecognized.</returns>
     internal static AbCipDataType? MapTypeCode(byte typeCode) => typeCode switch
     {
         0xC1 => AbCipDataType.Bool,