Now that https://github.com/openai/codex/pull/1373 simplified the sandbox config, we can print something much simpler in the TUI (and in `codex exec`) to summarize the sandbox config. Before:  With this change:  For reference, my `config.toml` contains: ``` [sandbox] mode = "workspace-write" writable_roots = ["/tmp", "/Users/mbolin/.pyenv/shims"] ``` Fixes https://github.com/openai/codex/issues/1248
codex-common
This crate is designed for utilities that need to be shared across other crates in the workspace, but should not go in core.
For narrow utility features, the pattern is to add introduce a new feature under [features] in Cargo.toml and then gate it with #[cfg] in lib.rs, as appropriate.