feat(crdt): Create WebSocketProvider for Yjs connection

frontend/src/crdt/WebSocketProvider.ts

@@ -0,0 +1,25 @@
+import { WebsocketProvider } from 'y-websocket';
+import * as Y from 'yjs';
+
+export class WebSocketProvider {
+  provider: WebsocketProvider;
+  
+  constructor(doc: Y.Doc, projectId: string, jwtToken: string) {
+    const url = `ws://localhost:3001/project:${projectId}`;
+    this.provider = new WebsocketProvider(url, `project:${projectId}`, doc, {
+      params: { token: jwtToken }
+    });
+  }
+
+  disconnect() {
+    this.provider.disconnect();
+  }
+
+  connect() {
+    this.provider.connect();
+  }
+
+  destroy() {
+    this.provider.destroy();
+  }
+}