feat(collab): add empty-room bootstrap policies and user identity; refactor Python host transport

Author: harbournick

packages/superdoc/src/ws.d.ts

@@ -0,0 +1,9 @@
+declare module 'ws' {
+  import type { IncomingMessage } from 'node:http';
+  import type { Duplex } from 'node:stream';
+
+  export class WebSocketServer {
+    constructor(options?: { noServer?: boolean });
+    handleUpgrade(request: IncomingMessage, socket: Duplex, head: Buffer, callback: (websocket: any) => void): void;
+  }
+}