feat: execute full-repo remaining parity closure plan

tests/NATS.Server.Tests/Protocol/MessageTraceInitializationTests.cs

@@ -0,0 +1,24 @@
+using NATS.Server.Protocol;
+
+namespace NATS.Server.Tests;
+
+public class MessageTraceInitializationTests
+{
+    [Fact]
+    public void Trace_context_is_initialized_from_connect_options()
+    {
+        var connectOpts = new ClientOptions
+        {
+            Name = "c1",
+            Lang = "dotnet",
+            Version = "1.0.0",
+            Headers = true,
+        };
+
+        var ctx = MessageTraceContext.CreateFromConnect(connectOpts);
+        ctx.ClientName.ShouldBe("c1");
+        ctx.ClientLang.ShouldBe("dotnet");
+        ctx.ClientVersion.ShouldBe("1.0.0");
+        ctx.HeadersEnabled.ShouldBeTrue();
+    }
+}