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

backend/agent/src/MoShiro.Agent/Tasks/TargetRunners.cs

@@ -24,9 +24,11 @@ public sealed class TargetRunners
     private readonly MonoClock _clock;
     private readonly TimeProvider _time;
     private readonly INodeLog _log;
+    private readonly RateChangeLog? _rateChanges;
 
-    public TargetRunners(ChunkAssembler chunks, NodeId agent, MonoClock clock, TimeProvider time, INodeLog log)
+    public TargetRunners(ChunkAssembler chunks, NodeId agent, MonoClock clock, TimeProvider time, INodeLog log, RateChangeLog? rateChanges = null)
     {
+        _rateChanges = rateChanges;
         _chunks = chunks;
         _agent = agent;
         _clock = clock;
@@ -92,6 +94,7 @@ public sealed class TargetRunners
                 PeerAddress = address,
                 Target = spec.Target,
                 AllowAddress = allow,
+                OnRateChange = _rateChanges is null ? null : _rateChanges.Add,
                 Fragments = new LocalSink(this, spec, address?.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6 ? IpVersions.V6 : IpVersions.V4),
             };
             IBlock block = BlockCatalog.Find(spec.Kind)!.Dialer(env, new BlockSpec(decision.Kind!, decision.Resolved!, 0, port, new FragmentScope(spec.Id, null, null)));