OpenAI Codex pricing change detected: typical $100 → $20/mo, floor $8 → $0/mo

Detected automatically from the vendor pricing page. Individual plans include Free ($0/month), Go ($8/month), Plus ($20/month), and Pro (from $100/month); Business plans start at $25/user/month when billed monthly, and an API Key option is usage-based. Pending human verification (needs_review).