CCF v1.6.0

[1.6.0] — 2026-06-17

Added

• Browser login for Codex (ccf-codex-login + /fusion-codex-login): users no longer need the
  codex CLI or a pre-existing ~/.codex/auth.json. Runs the OpenAI OAuth 2.0 + PKCE flow (same
  official client the codex CLI uses) on a local callback server, exchanges the code, derives the
  ChatGPT account id from the token JWT, and writes ~/.codex/auth.json (chmod 600). Flow ported
  from NousResearch/hermes-agent's tested constants. Python 3 stdlib only (login-time; runtime stays bash).
  --no-browser for headless/SSH, --refresh to refresh without re-login.
• Auto-refresh in fusion-call: when the Codex access token is within 120s of expiry and a
  refresh_token exists, it refreshes silently before the call — no more mid-session expiry failures.