fix: feature registry instance

Signed-off-by: Ariel Gentile <gentilester@gmail.com>

packages/core/src/agent/Agent.ts

@@ -20,7 +20,7 @@ import { BasicMessagesModule } from '../modules/basic-messages/BasicMessagesModu
 import { ConnectionsModule } from '../modules/connections/ConnectionsModule'
 import { CredentialsModule } from '../modules/credentials/CredentialsModule'
 import { DidsModule } from '../modules/dids/DidsModule'
-import { DiscoverFeaturesModule } from '../modules/discover-features'
+import { DiscoverFeaturesModule, FeatureRegistry } from '../modules/discover-features'
 import { GenericRecordsModule } from '../modules/generic-records/GenericRecordsModule'
 import { IndyModule } from '../modules/indy/module'
 import { LedgerModule } from '../modules/ledger/LedgerModule'
@@ -311,6 +311,7 @@ export class Agent {
     dependencyManager.registerSingleton(TransportService)
     dependencyManager.registerSingleton(Dispatcher)
     dependencyManager.registerSingleton(EnvelopeService)
+    dependencyManager.registerSingleton(FeatureRegistry)
     dependencyManager.registerSingleton(JwsService)
     dependencyManager.registerSingleton(CacheRepository)
     dependencyManager.registerSingleton(DidCommMessageRepository)

packages/core/src/plugins/DependencyManager.ts

@@ -10,15 +10,14 @@ export { InjectionToken }
 
 export class DependencyManager {
   public readonly container: DependencyContainer
-  private featureRegistry: FeatureRegistry
 
   public constructor(container: DependencyContainer = rootContainer.createChildContainer()) {
     this.container = container
-    this.featureRegistry = this.container.resolve(FeatureRegistry)
   }
 
   public registerModules(...modules: Module[]) {
-    modules.forEach((module) => module.register(this.featureRegistry, this))
+    const featureRegistry = this.resolve(FeatureRegistry)
+    modules.forEach((module) => module.register(featureRegistry, this))
   }
 
   public registerSingleton<T>(from: InjectionToken<T>, to: InjectionToken<T>): void