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.

tests/Client/ZB.MOM.WW.OtOpcUa.Client.CLI.Tests/LoggerLifecycleTests.cs

@@ -14,6 +14,7 @@ namespace ZB.MOM.WW.OtOpcUa.Client.CLI.Tests;
 /// </summary>
 public class LoggerLifecycleTests
 {
+    /// <summary>Verifies that ConfigureLogging disposes previous logger before reassigning.</summary>
     [Fact]
     public async Task ConfigureLogging_DisposesPreviousLogger_BeforeReassigning()
     {
@@ -48,8 +49,12 @@ public class LoggerLifecycleTests
 
     private sealed class DisposeTrackingSink : ILogEventSink, IDisposable
     {
+        /// <summary>Gets a value indicating whether the sink has been disposed.</summary>
         public bool Disposed { get; private set; }
+        /// <summary>Emits a log event.</summary>
+        /// <param name="logEvent">The log event to emit.</param>
         public void Emit(LogEvent logEvent) { }
+        /// <summary>Disposes the sink and marks it as disposed.</summary>
         public void Dispose() => Disposed = true;
     }
 }