fix: approve margin + fees for taker positions#37
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The contract transfers margin + all fees (creator, insurance, LP, protocol) from the user via safeTransferFrom, but the SDK was only approving the margin amount. This caused TransferFromFailed reverts. Now computes the total fee amount from notional value and includes it in the USDC approval.
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Summary
openPosfor taker positions transfersmargin + insuranceFee + lpFee + creatorFee + protocolFeeviasafeTransferFrom, but the SDK was only approving the margin amount. This causedTransferFromFailedreverts on every taker position opening.margin + totalFees.Test plan