Codex CLI Login Stuck at "Finish signing in via your browser" — A Managed Daemon Was Holding Port 1455

The [Codex CLI](https://developers.openai.com/codex/cli) TUI hung at "Finish signing in via your browser" even though the browser had finished the OAuth flow. `codex login status` returned `Logged in using ChatGPT` and `~/.codex/auth.json` had just been updated. The cause was an 18-hour-old `codex app-server --managed-daemon` still bound to the OAuth callback port `localhost:1455`. Killing the daemon and rerunning `codex login` resolved it.