measurement: name the kinds by protocol and action, add the http_request kind and QUIC settings

backend/agent/src/MoShiro.Agent/DataPlane/Registries.cs

@@ -217,8 +217,8 @@ public sealed class StreamInfo
         KindSpec spec = Kinds.Find(kind)!;
         DeclaredPps = kind switch
         {
-            "udp_echo" or "tcp_echo" => Kinds.PeakRateHz(kind, parameters),
-            "udp_train" => parameters.GetNumber("mbps") * 1_000_000 / 8 / Math.Max(1, parameters.GetInt("size")),
+            "quic_ping" or "tcp_ping" => Kinds.PeakRateHz(kind, parameters),
+            "quic_stream" => parameters.GetNumber("mbps") * 1_000_000 / 8 / Math.Max(1, parameters.GetInt("size")),
             _ => 20,
         };
         Port = spec.Params.Any(p => p.Name == "port") ? (int)parameters.GetInt("port") : 0;