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/Browse/GalaxyDiscoverer.cs

@@ -26,6 +26,8 @@ public sealed class GalaxyDiscoverer
 {
     private readonly IGalaxyHierarchySource _source;
 
+    /// <summary>Initializes a new GalaxyDiscoverer with the specified hierarchy source.</summary>
+    /// <param name="source">The Galaxy hierarchy source to use for discovery.</param>
     public GalaxyDiscoverer(IGalaxyHierarchySource source)
     {
         _source = source ?? throw new ArgumentNullException(nameof(source));
@@ -35,6 +37,8 @@ public sealed class GalaxyDiscoverer
     ///     Drive the supplied builder with one folder + N variables per Galaxy object the
     ///     gateway returns. Idempotent — caller can re-invoke after a redeploy event.
     /// </summary>
+    /// <param name="builder">The address space builder to populate with discovery results.</param>
+    /// <param name="cancellationToken">The cancellation token for the operation.</param>
     public async Task DiscoverAsync(IAddressSpaceBuilder builder, CancellationToken cancellationToken)
     {
         ArgumentNullException.ThrowIfNull(builder);