Restore slash command support on rust-v0.42.0#5

iatzmon wants to merge 2 commits into001-here-is-aitamux/codex:001-here-is-afrom

codex/rebase-branch-on-codex-and-add-slash-commandsitamux/codex:codex/rebase-branch-on-codex-and-add-slash-commandsCopy head branch name to clipboard