Kiro pricing change detected: typical $20 → $40/mo, floor $20 → $0/mo

Detected automatically from the vendor pricing page. Kiro offers a free tier with 50 credits, and individual paid plans at $20/month (1,000 credits), $40/month (2,000 credits), $100/month (5,000 credits), and $200/month (10,000 credits), with add-on credits available at $0.04/credit. Pending human verification (needs_review).