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/CompiledScriptCache.cs

@@ -52,6 +52,8 @@ public sealed class CompiledScriptCache<TContext, TResult> : IDisposable
     ///     the next call retries (useful during Admin UI authoring when the operator is
     ///     still fixing syntax).
     /// </summary>
+    /// <param name="scriptSource">The source code to compile or retrieve from cache.</param>
+    /// <returns>The compiled script evaluator.</returns>
     public ScriptEvaluator<TContext, TResult> GetOrCompile(string scriptSource)
     {
         if (scriptSource is null) throw new ArgumentNullException(nameof(scriptSource));
@@ -116,6 +118,8 @@ public sealed class CompiledScriptCache<TContext, TResult> : IDisposable
     }
 
     /// <summary>True when the exact source has been compiled at least once + is still cached.</summary>
+    /// <param name="scriptSource">The source code to check for in the cache.</param>
+    /// <returns>True if the source is cached, false otherwise.</returns>
     public bool Contains(string scriptSource)
         => _cache.ContainsKey(HashSource(scriptSource));