v0.2.3

Added

• The menu bar is now a control surface. Pick the active model, toggle a
  provider, and switch the whole routing on or off without opening the
  window. Turning it on starts the proxy and points Codex at it as one
  operation — and rolls the proxy back if pointing Codex fails, so a failed
  toggle never leaves you half-on.
• The Agents screen is a catalogue, not a Codex feature list. 22 agent
  roles that recur across the coding-agent ecosystem — reviewer, planner,
  debugger, adversarial critic, migration runner, incident responder, data
  analyst and more — grouped into eight categories. Picking one writes it
  into ~/.codex/agents as a Codex agent you can then edit.
• Search on the Agents screen, covering your own agents and the catalogue
  at once. It matches the category too, so "data" finds the analyst even
  though the word is nowhere in its description.
• A step for agents in the first-run walkthrough, which now explains
  delegation and lets multi-agent be switched on from there.

Fixed

• Multi-agent could only be turned on. The prompt to enable it only
  existed while it was off, so enabling it removed the only control. There is
  now a permanent switch under Codex Integration, alongside the other
  settings written to ~/.codex/config.toml.
• Codex settings no longer sit in a narrow column with the rest of the window
  empty, and the third card no longer strands itself on its own row at the
  default window size.
• Agent and catalogue cards in a row are the same height.