agent: keep adaptive rate changes apart from the logs and report them in the heartbeat

backend/agent/src/MoShiro.Agent/Dial/DialConnection.cs

@@ -11,7 +11,7 @@ using MoShiro.Protocol;
 namespace MoShiro.Agent;
 
 /// <summary>所有连接共用的东西。</summary>
-public sealed record DialEnv(NodeIdentity Identity, string NodeId, LimitsSection Limits, QuicSettings Quic, DialDirectory Directory, MonoClock Clock, TimeProvider Time, INodeLog Log);
+public sealed record DialEnv(NodeIdentity Identity, string NodeId, LimitsSection Limits, QuicSettings Quic, DialDirectory Directory, MonoClock Clock, TimeProvider Time, INodeLog Log, RateChangeLog RateChanges);
 
 /// <summary>
 /// 与一个 Agent 的点对点连接，分两层：
@@ -190,6 +190,12 @@ public sealed class DialConnection : IDisposable
             Fragments = shipper,
             MaxPacketsPerSecond = _env.Limits.MaxTotalPps,
             MaxBulkMbps = _env.Limits.MaxTotalMbps,
+            OnRateChange = change =>
+            {
+                change.Listener = Endpoint.NodeId;
+                change.IpVersion = Endpoint.IpVersion;
+                _env.RateChanges.Add(change);
+            },
         };
         var session = new DialSession(blockEnv, clock, _outbox, _env);
         var rpc = new RpcSession<DialSession>(transport, s_router, session, _env.Time);