FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/metro/src/HmrServer.d.ts

@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @noformat
+ * @generated SignedSource<<ab4c245134631e14db114a9d49da79d1>>
+ *
+ * This file was translated from Flow by scripts/generateTypeScriptDefinitions.js
+ * Original file: packages/metro/src/HmrServer.js
+ * To regenerate, run:
+ *   js1 build metro-ts-defs (internal) OR
+ *   yarn run build-ts-defs (OSS) 
+ */
+
+import type {
+  RevisionId,
+  default as IncrementalBundler,
+} from './IncrementalBundler';
+import type {GraphOptions} from './shared/types';
+import type {ConfigT, RootPerfLogger} from 'metro-config';
+import type {
+  HmrErrorMessage,
+  HmrUpdateMessage,
+} from 'metro-runtime/src/modules/types';
+
+export type Client = {
+  optedIntoHMR: boolean;
+  revisionIds: Array<RevisionId>;
+  readonly sendFn: ($$PARAM_0$$: string) => void;
+};
+type ClientGroup = {
+  readonly clients: Set<Client>;
+  clientUrl: URL;
+  revisionId: RevisionId;
+  readonly unlisten: () => void;
+  readonly graphOptions: GraphOptions;
+};
+/**
+ * The HmrServer (Hot Module Reloading) implements a lightweight interface
+ * to communicate easily to the logic in the React Native repository (which
+ * is the one that handles the Web Socket connections).
+ *
+ * This interface allows the HmrServer to hook its own logic to WS clients
+ * getting connected, disconnected or having errors (through the
+ * `onClientConnect`, `onClientDisconnect` and `onClientError` methods).
+ */
+declare class HmrServer<TClient extends Client> {
+  _config: ConfigT;
+  _bundler: IncrementalBundler;
+  _createModuleId: (path: string) => number;
+  _clientGroups: Map<RevisionId, ClientGroup>;
+  constructor(
+    bundler: IncrementalBundler,
+    createModuleId: (path: string) => number,
+    config: ConfigT,
+  );
+  onClientConnect: (
+    requestUrl: string,
+    sendFn: (data: string) => void,
+  ) => Promise<Client>;
+  _registerEntryPoint(
+    client: Client,
+    originalRequestUrl: string,
+    sendFn: (data: string) => void,
+  ): Promise<void>;
+  onClientMessage: (
+    client: TClient,
+    message: string | Buffer | ArrayBuffer | Array<Buffer>,
+    sendFn: (data: string) => void,
+  ) => Promise<void>;
+  onClientError: (client: TClient, e: Error) => void;
+  onClientDisconnect: (client: TClient) => void;
+  _handleFileChange(
+    group: ClientGroup,
+    options: {isInitialUpdate: boolean},
+    changeEvent:
+      | null
+      | undefined
+      | {
+          readonly logger: null | undefined | RootPerfLogger;
+          readonly changeId?: string;
+        },
+  ): Promise<void>;
+  _prepareMessage(
+    group: ClientGroup,
+    options: {isInitialUpdate: boolean},
+    changeEvent:
+      | null
+      | undefined
+      | {
+          readonly logger: null | undefined | RootPerfLogger;
+          readonly changeId?: string;
+        },
+  ): Promise<HmrUpdateMessage | HmrErrorMessage>;
+}
+export default HmrServer;