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/zod/v4/classic/from-json-schema.d.ts

@@ -0,0 +1,12 @@
+import type * as JSONSchema from "../core/json-schema.js";
+import { type $ZodRegistry } from "../core/registries.js";
+import type { ZodType } from "./schemas.js";
+type JSONSchemaVersion = "draft-2020-12" | "draft-7" | "draft-4" | "openapi-3.0";
+interface FromJSONSchemaParams {
+    defaultTarget?: JSONSchemaVersion;
+    registry?: $ZodRegistry<any>;
+}
+/**
+ * Converts a JSON Schema to a Zod schema. This function should be considered semi-experimental. It's behavior is liable to change. */
+export declare function fromJSONSchema(schema: JSONSchema.JSONSchema | boolean, params?: FromJSONSchemaParams): ZodType;
+export {};