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

Detected automatically from the vendor pricing page. Kiro offers a free tier, and paid tiers (Pro, Pro+, Pro Max, Power) ranging from $20 to $200 per user/month, each including a set amount of credits with additional credits available for purchase at $0.04/credit. Pending human verification (needs_review).