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/ox/core/Caches.ts

@@ -0,0 +1,21 @@
+import type * as Address from './Address.js'
+import { LruMap } from './internal/lru.js'
+
+const caches = {
+  checksum: /*#__PURE__*/ new LruMap<Address.Address>(8192),
+}
+
+export const checksum = caches.checksum
+
+/**
+ * Clears all global caches.
+ *
+ * @example
+ * ```ts
+ * import { Caches } from 'ox'
+ * Caches.clear()
+ * ```
+ */
+export function clear() {
+  for (const cache of Object.values(caches)) cache.clear()
+}