* Honor the `OPENAI_BASE_URL ` environment variable for the built-in `openai` model provider: https://github.com/openai/codex/pull/1487
* Support `model_reasoning_effort` and `model_reasoning_summary` when defining a profile thanks to https://github.com/openai/codex/pull/1484
* Add a `completion` subcommand to the CLI in https://github.com/openai/codex/pull/1491 so we can ultimately add `generate_completions_from_executable()` to our Homebrew formula: https://github.com/Homebrew/homebrew-core/blob/main/Formula/c/codex.rb