Mint 1 Build NFT on BNB Chain mainnet (chain ID 56).
Build contract: 待部署
USDT contract: 待部署 (18 decimals)
Payment: the current exact total USDT price for 1 NFT; BNB is only for gas.
Identity registry: 待部署

Use my AI wallet's own address as the sender and NFT recipient. A registered .ai Agent ID is required. USDT and BNB mints share the same Agent ID quota. Stop if my Agent ID is missing or not bound to this wallet.
The page observed a limit of 4 NFTs per Agent ID; stop and show updated facts if this changed.
Before pricing or approving, establish my current remaining mint quota and public availability. If fewer than 1 remain, stop and ask for a new quantity; never silently reduce or split the request. This means 1 additional NFT, not a target total holding.
Previous mints in either currency consume the quota, even if NFTs were transferred or burned.
Refresh quota, balances and the exact total price immediately before minting; never reuse an old price.

Check my current USDT balance and BNB for gas; if insufficient, report the shortfall and stop. If my USDT allowance already covers the total, skip approval. Otherwise approve only the exact full quoted total to the Build contract, not an unlimited amount. Approval and mint require separate previews and confirmations.
After approval succeeds, refresh quota, price, balances and allowance, then prepare the mint preview directly. If allowance no longer covers the price, stop and show the changed requirement. Mint exactly 1 using mint(uint8), with no native BNB payment. Do not transfer USDT directly to the contract.

Reference price at the time this prompt was generated: 4.44 USDT for 1 NFT. Re-read the on-chain quote before paying; the contract is the source of truth.
Show me a full preview before submitting, and wait for my confirmation.