Previously all openai-codex models had pricing set to 0, causing the
TUI to always show $0.00 for cost tracking.
Updated pricing based on OpenAI Standard tier rates:
- gpt-5.2/gpt-5.2-codex: $1.75/$14.00 per 1M tokens
- gpt-5.1/gpt-5.1-codex/gpt-5.1-codex-max: $1.25/$10.00 per 1M tokens
- gpt-5/gpt-5-codex: $1.25/$10.00 per 1M tokens
- codex-mini-latest: $1.50/$6.00 per 1M tokens
- gpt-5-mini/gpt-5.1-codex-mini/gpt-5-codex-mini: $0.25/$2.00 per 1M tokens
- gpt-5-nano: $0.05/$0.40 per 1M tokens
Source: https://platform.openai.com/docs/pricing
Add new slash commands for gracefully exiting the interactive mode:
- /quit - exit the application
- /exit - alias for /quit (common CLI convention)
Both commands await shutdown() which emits session_shutdown events
to hooks and custom tools before exiting. Unlike Ctrl+C (twice) which
uses void (fire-and-forget), these commands properly wait for hooks
and tools to complete their shutdown handlers.