AI cost, limits, and fair use

• Free plan: 5 AI palette generations per month, 3 AI name calls per month.
• Pro plan: unlimited AI palette generation, unlimited names, unlimited AI logo refinement.

"Unlimited" is bounded by a fair-use cap — currently 500 calls per user per day. Real abuse (scripted bursts, multiple accounts, etc.) is auto-flagged and rate-limited. We email the user when it triggers.