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.Galaxy/Runtime/StatusCodeMap.cs

@@ -49,6 +49,9 @@ internal static class StatusCodeMap
     ///     which is what Wonderware Historian + MXAccess surface as <c>OPCITEMSTATE.qLong</c>'s
     ///     low byte) to the OPC UA StatusCode uint.
     /// </summary>
+    /// <param name="q">The OPC DA quality byte to convert.</param>
+    /// <param name="logger">Optional logger for diagnostics on unknown quality bytes.</param>
+    /// <returns>The OPC UA status code.</returns>
     public static uint FromQualityByte(byte q, ILogger? logger = null) => q switch
     {
         // Good family — top two bits 11b (192-255).
@@ -83,6 +86,9 @@ internal static class StatusCodeMap
     ///     the authoritative indicator. On failure, the detail byte (OPC DA quality substatus)
     ///     drives the specific code, with a transport-error fallback for pre-MXAccess failures.
     /// </summary>
+    /// <param name="status">The MX status proxy to convert, or null for Good status.</param>
+    /// <param name="logger">Optional logger for diagnostics on unknown status codes.</param>
+    /// <returns>The OPC UA status code.</returns>
     public static uint FromMxStatus(MxStatusProxy? status, ILogger? logger = null)
     {
         if (status is null) return Good;
@@ -112,6 +118,8 @@ internal static class StatusCodeMap
     ///     the round-trip in one place means a future change to the OPC UA bit layout cannot
     ///     silently desync the probe-health decode.
     /// </summary>
+    /// <param name="statusCode">The OPC UA status code to convert.</param>
+    /// <returns>The OPC DA quality category byte.</returns>
     public static byte ToQualityCategoryByte(uint statusCode) =>
         (byte)(((statusCode >> 30) & 0x3u) switch
         {