refactor(conformance): fix dangling doc reference in ScenarioLoader

The expect-capture rationale comment pointed at "ExpectNode.ToJsonNode",
a type/method that does not exist. The real conversion lives in
QueryScenarioRunner.YamlExpectToJsonNode — point the reader there.
Comment-only; no behavior change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: dmealing

server/csharp/MetaObjects.IntegrationTests/Runner/ScenarioLoader.cs

@@ -19,7 +19,7 @@ public static class ScenarioLoader
     // object-graph deserialization collapses both to the string "45", which would
     // make every INTEGER-typed expectation (durationMinutes, min/max aggregates)
     // un-representable. This matches the TS authority, whose JS YAML loader infers
-    // scalar types the same way. See ExpectNode.ToJsonNode.
+    // scalar types the same way. See QueryScenarioRunner.YamlExpectToJsonNode.
     private static readonly IDeserializer Yaml = new DeserializerBuilder()
         .WithNamingConvention(HyphenatedNamingConvention.Instance)
         .WithTypeConverter(new YamlNodeTypeConverter())