feat(server): add registry persistence store

plugin/index.ts

@@ -19,6 +19,16 @@ export {
   type SerializedClientRecord,
   type ServerPersistenceData
 } from "./core/persistence.js";
+export {
+  SERVER_PERSISTENCE_VERSION,
+  YonexusServerStoreError,
+  YonexusServerStoreCorruptionError,
+  createYonexusServerStore,
+  loadServerStore,
+  saveServerStore,
+  type ServerStoreLoadResult,
+  type YonexusServerStore
+} from "./core/store.js";
 
 export interface YonexusServerPluginManifest {
   readonly name: "Yonexus.Server";