feat: complete remaining jetstream parity implementation plan

tests/NATS.Server.Tests/JetStreamConsumerListApiTests.cs

@@ -0,0 +1,17 @@
+namespace NATS.Server.Tests;
+
+public class JetStreamConsumerListApiTests
+{
+    [Fact]
+    public async Task Consumer_names_list_and_delete_are_supported()
+    {
+        await using var fx = await JetStreamApiFixture.StartWithPullConsumerAsync();
+
+        var names = await fx.RequestLocalAsync("$JS.API.CONSUMER.NAMES.ORDERS", "{}");
+        names.ConsumerNames.ShouldNotBeNull();
+        names.ConsumerNames.ShouldContain("PULL");
+
+        var del = await fx.RequestLocalAsync("$JS.API.CONSUMER.DELETE.ORDERS.PULL", "{}");
+        del.Success.ShouldBeTrue();
+    }
+}