make internal

Author: rysweet

dotnet/src/Microsoft.AutoGen/Agents/Services/Orleans/RegistryGrain.cs

@@ -5,7 +5,7 @@
 
 namespace Microsoft.AutoGen.Agents;
 
-public sealed class RegistryGrain : Grain, IRegistryGrain
+internal sealed class RegistryGrain : Grain, IRegistryGrain
 {
     // TODO: use persistent state for some of these or (better) extend Orleans to implement some of this natively.
     private readonly Dictionary<IGateway, WorkerState> _workerStates = new();

dotnet/src/Microsoft.AutoGen/Agents/Services/Orleans/SubscriptionsGrain.cs

@@ -3,7 +3,7 @@
 
 namespace Microsoft.AutoGen.Agents;
 
-public sealed class SubscriptionsGrain([PersistentState("state", "PubSubStore")] IPersistentState<SubscriptionsState> state) : Grain, ISubscriptionsGrain
+internal sealed class SubscriptionsGrain([PersistentState("state", "PubSubStore")] IPersistentState<SubscriptionsState> state) : Grain, ISubscriptionsGrain
 {
     private readonly Dictionary<string, List<string>> _subscriptions = new();
     public ValueTask<Dictionary<string, List<string>>> GetSubscriptions(string agentType)