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/Core/ZB.MOM.WW.OtOpcUa.Core.Scripting/ScriptSandbox.cs

@@ -42,6 +42,7 @@ public static class ScriptSandbox
     ///     subclass the script's <c>ctx</c> will be of — the compiler uses its assembly
     ///     to resolve <c>ctx.GetTag(...)</c> calls.
     /// </summary>
+    /// <param name="contextType">The concrete script context type to use for compilation.</param>
     public static SandboxConfig Build(Type contextType)
     {
         if (contextType is null) throw new ArgumentNullException(nameof(contextType));