## What changed
- Add the experimental `worktrees` feature and a shared `--worktree` flag for new and forked `codex exec` sessions.
- Create each enabled session in a managed Git worktree, use that checkout as the session working directory, and bind the checkout to the new thread.
- Share the configured worktree pool with Desktop while leaving automatic cleanup disabled for CLI allocations.
- Reject unsupported commands, remote execution, ignored user configuration, ephemeral sessions, and use without the feature enabled before allocating a worktree.
## Testing
- Cover flag placement and inheritance, supported and rejected command combinations, worktree allocation and thread ownership, configuration gating, and compatibility with existing worktree-backed sessions.
GitOrigin-RevId: 011ff4639b09e8992c50d7b823df23e71798670e
## What changed
- Add the `codex-worktree` crate for resolving managed worktree settings from
the existing `[desktop]` configuration.
- Default the worktree root to `$CODEX_HOME/worktrees`, automatic cleanup to
enabled, and retained worktrees to 15.
- Validate configured roots, cleanup flags, and retention counts before
exposing the effective settings.
## Testing
- Cover defaults, configured values, and invalid root and retention settings.
GitOrigin-RevId: 1b279c62ef41e3c8eb540ce9beaf0f6cd96d903f
Benjamin Carlsson