Capture web terminal stdin as logged CommandEvents

[Codex]

Browser terminals were not logging stdin, losing command history and metadata for web-launched shells.

• Web terminal plumbing: Added PTY manager (TERMINALS) and REST/WebSocket endpoints (/api/session/{name}/terminal/*, /ws/session/{name}/terminal) that stream stdin to the PTY while appending each newline-delimited input as a CommandEvent (cwd, seq, part, HMAC) to session.jsonl.
• Session page UI: Injected a live terminal panel that uses the new endpoints/WebSocket for interactive input/output; terminal output continues to mirror into terminal.log.
• Docs/notes: Documented live terminal capture in README and changelog; added WebSocket test ensuring captured commands surface in the session API.

Example (stdin capture before PTY write):

# src/guild_scroll/web/terminal.py
event = CommandEvent(
    seq=self._seq,
    command=command,
    timestamp_start=ts,
    timestamp_end=ts,
    exit_code=-1,
    working_directory=self._capture_cwd(),
    part=self.part,
)
JSONLWriter(self._session_log_path, hmac_key=self._hmac_key).write(event.to_dict())

[chatgpt-codex-connector]

You have reached your Codex usage limits for code reviews. You can see your limits in the Codex usage dashboard.
To continue using code reviews, you can upgrade your account or add credits to your account and enable them for code reviews in your settings.