V1 collapses the old five-bucket fee model into four pools, two flows: LP + Card Buffer hold the token supply; Hourly + Mega hold the USDC from buy/sell fees. Both lotteries pay the lastBuyer — no tickets, no weights.
BufferDepleted event emittedwithdraw()flipCard() payouts. Fees are USDC; Buffer is CASTE — they don't intersect.