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/@trpc/client/bin/intent.js

@@ -0,0 +1,20 @@
+#!/usr/bin/env node
+// Auto-generated by @tanstack/intent setup
+// Exposes the intent end-user CLI for consumers of this library.
+// Commit this file, then add to your package.json:
+//   "bin": { "intent": "./bin/intent.js" }
+try {
+  await import('@tanstack/intent/intent-library');
+} catch (e) {
+  if (e?.code === 'ERR_MODULE_NOT_FOUND' || e?.code === 'MODULE_NOT_FOUND') {
+    console.error('@tanstack/intent is not installed.');
+    console.error('');
+    console.error('Install it as a dev dependency:');
+    console.error('  npm add -D @tanstack/intent');
+    console.error('');
+    console.error('Or run directly:');
+    console.error('  npx @tanstack/intent@latest list');
+    process.exit(1);
+  }
+  throw e;
+}