atrium 0.40.1

Changed

• The generated fleet file shows the captions knob. Every built-in
  template (atrium fleet init solo|pair|crew) now carries "captions": false, so the opt-in to the model-made caption is a line to flip rather
  than a key to know about (fleets).

Fixed

• A codex pane's commands see the pane's environment. From 0.157 an
  interactive codex attaches to one per-user background server, forked by
  whichever codex starts first anywhere and outliving it, and the agent's
  shell commands run as that server's children with its environment. A
  codex pane lost ATRIUM_CTL/ATRIUM_PANE/ATRIUM_TOKEN when the server
  came from outside atrium (an editor's codex), so atrium ctl failed; and
  when it came from an earlier atrium pane, every codex on the host ran
  commands under that pane's capability token. A codex pane now launches with
  --no-daemon (not with --remote, nor on queue/agents, which refuse
  it). Whether a codex has the flag is asked of its own --help, once per
  program per session; an older one launches as written and the bar says why.
• The compile pool holds its size on macOS. The pool counted its free
  tokens with FIONREAD on its own read/write end of the FIFO, which macOS
  answers with 0 however many are buffered. On a Mac the pool always looked
  empty, so each refill with no build running put a full pool's worth back on
  top of what was there, and the cap stopped capping. It now counts through a
  read-only end, which reports the real number.