atomic-v2-migration

Use when the user wants to migrate code, scripts, or downstream consumers from pump.fun's V1 (SOL-pool) layout to V2 (USDC-pool) layout, or is debugging an issue caused by the V2 USDC rollout. Triggers on "V2 USDC", "pump V2", "V1 to V2 migration", "USDC pool", "quote mint", "new discriminator", "BuybackFeeRecipient", "event layout changed", "pump-sdk doesn't decode", "creator fees in USDC now", or any V1→V2…