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/drizzle-orm/casing.d.ts

@@ -0,0 +1,14 @@
+import type { Column } from "./column.js";
+import { entityKind } from "./entity.js";
+import type { Casing } from "./utils.js";
+export declare function toSnakeCase(input: string): string;
+export declare function toCamelCase(input: string): string;
+export declare class CasingCache {
+    static readonly [entityKind]: string;
+    private cachedTables;
+    private convert;
+    constructor(casing?: Casing);
+    getColumnCasing(column: Column): string;
+    private cacheTable;
+    clearCache(): void;
+}