Model aliases codexresponses

Model Alias	Maps to
`astra`	`codexresponses.gpt-6-astra?reasoning=medium`
`codexplan`	`codexresponses.gpt-6-astra?reasoning=medium`
`codexplan53`	`codexresponses.gpt-5.3-codex?reasoning=medium`
`codexplan54`	`codexresponses.gpt-5.4?reasoning=high`
`codexplan55`	`codexresponses.gpt-5.5?reasoning=medium`
`codexspark`	`codexresponses.gpt-5.3-codex-spark`
`gpt-5.3-codex-spark`	`gpt-5.3-codex-spark`
`luna`	`codexresponses.gpt-5.6-luna?reasoning=medium`
`sol`	`codexresponses.gpt-5.6-sol?reasoning=high`
`terra`	`codexresponses.gpt-5.6-terra?reasoning=high`