Native Codex installed but the shell runs an older npm version

Symptom: ~/.local/bin/codex --version is newer than codex --version, or bootstrap reports Codex PATH conflict after installing the complete runtime.

Root cause: nvm precedes the native bin directory on PATH, and a previous global npm installation left its codex launcher in the node version’s bin directory. Restarting the shell recreates the same ordering. Older cleanup code also skipped the managed nvm directory when ~/.local resolved to scratch storage outside $HOME, leaving that launcher in place after installation.

Confirm: compare command -v codex and the versions reported by that path and the managed $LOCAL_PLAT/bin/codex (~/.local/bin/codex without isolation).

Fix: run bash ~/dotfiles/install/codex.sh install, then rehash in zsh or hash -r in Bash. The installer validates the native runtime, retires known npm launcher symlinks in the resolved managed root (including scratch storage and PLAT layouts) and ~/.nvm, and verifies PATH resolution. It preserves package files for active sessions and refuses to replace unknown launchers. See native CLI migration.