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

Detected automatically from the vendor pricing page. Kiro offers a free tier with 50 credits and paid tiers ranging from Pro at $20/month for 1,000 credits to Power at $200/month for 10,000 credits, with add-on credits available at $0.04/credit. Pending human verification (needs_review).