OpenAI Codex introduces pet mode

OpenAI's programming tool Codex has launched a pet mode, allowing users to keep a "cyber pet" on their desktop. Typing `/pet` wakes up the virtual pet, which displays the real-time status of Codex (running/waiting for input/ready for review) and progress indicators, allowing users to check their progress without opening the application. Users can customize their pet's appearance using the `hatch-pet` skill.