## Summary
- Adds `scripts/codex-cloud-setup.sh` for Codex Cloud environment setup
- Installs Linux/Tauri native dependencies, Node/pnpm, Rust tooling, JS dependencies, and Rust crates
- Uses CPU-safe Rust checks with `--no-default-features` because Phokus enables CUDA by default
- Adds UI Lab/browser guidance for `pnpm dev:ui` on port `1422`
## Notes
- The script is intended to be pasted into the Codex Cloud setup field or run from the repo root.
- It avoids full release builds during setup to keep Codex cache warm without making environment creation too heavy.
Reviewed-on: #9
