WIP: Refactor and polyfill updates

- Add crypto polyfill for Expo
- Update daemon client and websocket server
- Simplify codex agent tests

packages/app/index.ts

@@ -1,3 +1,7 @@
+// Polyfill crypto.randomUUID for React Native before any other imports
+import { polyfillCrypto } from "./src/polyfills/crypto";
+polyfillCrypto();
+
 // Configure Unistyles before Expo Router pulls in any components using StyleSheet.
 import "./src/styles/unistyles";
 import "expo-router/entry";