2.8.0

Added

• Native Codex CLI runtime using the user's installed executable and a persistent
  asynchronous stdio app-server connection, without the optional Python SDK.
  Codex owns its tools, sandbox, skills, MCP configuration and login storage.
• Streaming Codex text, public reasoning summaries, plans, tool activity, file
  changes, usage and rate limits in the TUI, with approvals, user questions,
  cancellation, steering and native review.
• Asynchronous Codex account, model and session controls, plus startup, RPC and
  turn timing diagnostics.

Changed

• :connect now offers Connect to an existing harness → Subscriptions →
  separate Codex CLI and Codex SDK entries. Reconnect retains the selected
  route, and the Harness Hub and command completion expose both choices.
• :connect codex selects the installed CLI; :connect codex-sdk selects the
  optional Python SDK. Both subscription routes verify ChatGPT authentication
  before thread creation and prompts, without automatic API billing fallback.

Notes

• The native CLI integration still uses Codex's supported app-server protocol.
  Model and service latency still apply; faster inference is not guaranteed.
• MCP elicitation forms and URL flows currently cancel with a visible message;
  additional permission-profile requests decline.