All-in account debit: premium + (trading − subsidy) + builder + penalty +
inventoryImpact — exactly what the chain withdraws (the deployed
compute_mint_quote's all_in_cost); pass this (plus your buffer) as maxCost.
Fill price, 0..1 per $1 payout.
Fee breakdown. referral is a PORTION of the trader-paid trading fee and
congestion surcharge routed to the referrer — it is already inside those
numbers and is NOT an extra debit. inventoryImpact is a separate charge and
IS part of cost.
True: computed by the real mint code path against real account state.
Premium paid into LP backing (quote units).
Exact pre-trade quote: the dry-run receipt of the mint you are about to send.