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/Core/ZB.MOM.WW.OtOpcUa.Core.Scripting.Tests/TimedScriptEvaluatorTests.cs

@@ -13,6 +13,7 @@ namespace ZB.MOM.WW.OtOpcUa.Core.Scripting.Tests;
 [Trait("Category", "Unit")]
 public sealed class TimedScriptEvaluatorTests
 {
+    /// <summary>Verifies that fast scripts complete under timeout and return value.</summary>
     [Fact]
     public async Task Fast_script_completes_under_timeout_and_returns_value()
     {
@@ -26,6 +27,7 @@ public sealed class TimedScriptEvaluatorTests
         result.ShouldBe(42.0);
     }
 
+    /// <summary>Verifies that scripts longer than timeout throw ScriptTimeoutException.</summary>
     [Fact]
     public async Task Script_longer_than_timeout_throws_ScriptTimeoutException()
     {
@@ -47,6 +49,7 @@ public sealed class TimedScriptEvaluatorTests
         ex.Message.ShouldContain("50.0");
     }
 
+    /// <summary>Verifies that caller cancellation takes precedence over timeout.</summary>
     [Fact]
     public async Task Caller_cancellation_takes_precedence_over_timeout()
     {
@@ -67,6 +70,7 @@ public sealed class TimedScriptEvaluatorTests
             await timed.RunAsync(new FakeScriptContext(), cts.Token));
     }
 
+    /// <summary>Verifies that default timeout is 250ms per plan.</summary>
     [Fact]
     public void Default_timeout_is_250ms_per_plan()
     {
@@ -74,6 +78,7 @@ public sealed class TimedScriptEvaluatorTests
             .ShouldBe(TimeSpan.FromMilliseconds(250));
     }
 
+    /// <summary>Verifies that zero or negative timeout is rejected at construction.</summary>
     [Fact]
     public void Zero_or_negative_timeout_is_rejected_at_construction()
     {
@@ -84,6 +89,7 @@ public sealed class TimedScriptEvaluatorTests
             new TimedScriptEvaluator<FakeScriptContext, int>(inner, TimeSpan.FromMilliseconds(-1)));
     }
 
+    /// <summary>Verifies that null inner evaluator is rejected.</summary>
     [Fact]
     public void Null_inner_is_rejected()
     {
@@ -91,6 +97,7 @@ public sealed class TimedScriptEvaluatorTests
             new TimedScriptEvaluator<FakeScriptContext, int>(null!));
     }
 
+    /// <summary>Verifies that null context is rejected.</summary>
     [Fact]
     public void Null_context_is_rejected()
     {
@@ -100,6 +107,7 @@ public sealed class TimedScriptEvaluatorTests
             await timed.RunAsync(null!, TestContext.Current.CancellationToken));
     }
 
+    /// <summary>Verifies that script exceptions propagate unwrapped.</summary>
     [Fact]
     public async Task Script_exception_propagates_unwrapped()
     {
@@ -115,6 +123,7 @@ public sealed class TimedScriptEvaluatorTests
         ex.Message.ShouldBe("script boom");
     }
 
+    /// <summary>Verifies that ScriptTimeoutException message points at diagnostic path.</summary>
     [Fact]
     public async Task ScriptTimeoutException_message_points_at_diagnostic_path()
     {
@@ -133,6 +142,7 @@ public sealed class TimedScriptEvaluatorTests
         ex.Message.ShouldContain("widening the timeout");
     }
 
+    /// <summary>Verifies that caller cancellation wins even when timeout fires first.</summary>
     [Fact]
     public async Task Caller_cancellation_wins_even_when_timeout_fires_first()
     {