Implement Codex CLI agent deployment on Oracle Cloud Infrastructure.
Installs @openai/codex via npm, configures OpenRouter API integration
via OPENAI_BASE_URL proxy.
Agent: gap-filler
Co-authored-by: B <6723574+louisgv@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>