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/tinypool/dist/esm/chunk-FJA3Y3DX.js

@@ -0,0 +1,38 @@
+// src/common.ts
+var kMovable = Symbol("Tinypool.kMovable");
+var kTransferable = Symbol.for("Tinypool.transferable");
+var kValue = Symbol.for("Tinypool.valueOf");
+var kQueueOptions = Symbol.for("Tinypool.queueOptions");
+function isTransferable(value) {
+  return value != null && typeof value === "object" && kTransferable in value && kValue in value;
+}
+function isMovable(value) {
+  return isTransferable(value) && value[kMovable] === true;
+}
+function markMovable(value) {
+  Object.defineProperty(value, kMovable, {
+    enumerable: false,
+    configurable: true,
+    writable: true,
+    value: true
+  });
+}
+function isTaskQueue(value) {
+  return typeof value === "object" && value !== null && "size" in value && typeof value.shift === "function" && typeof value.remove === "function" && typeof value.push === "function";
+}
+var kRequestCountField = 0;
+var kResponseCountField = 1;
+var kFieldCount = 2;
+
+export {
+  kTransferable,
+  kValue,
+  kQueueOptions,
+  isTransferable,
+  isMovable,
+  markMovable,
+  isTaskQueue,
+  kRequestCountField,
+  kResponseCountField,
+  kFieldCount
+};