Fix EIP 712 - Data of the struct should be concatenated after type hash

[MauroToscano]

Description

Change structHash using the EIP description

hashStruct(s : 𝕊) = keccak256(typeHash ‖ encodeData(s))

Also, do not perfom the keccak on the nonce and the maxFee

How to test

Send proofs as usual

Note

Remember to rebuild aligned using make install_aligned_compiling

How to deploy

This PR requires upgrading the BatcherPaymentService.sol

To upgrade you need to run

make upgrade_batcher_payment_service

Once you upgraded the contrat, you need to rebuild the batcher and the client

make install_batcher

make install_aligned_compiling

[github-actions]

Changes to gas cost

Generated at commit: 8e7d46ce5cd305481d39745bb59db456f73425a8, compared to commit: 0d29b1aa3df0046e48f6889d7d5c10e25ec88e69

🧾 Summary (10% most significant diffs)

Contract	Method	Avg (+/-)	%
AlignedLayerServiceManager	createNewTask	+3 ❌	+0.00%

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Full diff report 👇

Contract	Deployment Cost (+/-)	Method	Min (+/-)	%	Avg (+/-)	%	Median (+/-)	%	Max (+/-)	%	# Calls (+/-)
AlignedLayerServiceManager	4,629,415 (0)	createNewTask	53,895 (+72)	+0.13%	73,807 (+3)	+0.00%	73,969 (-12)	-0.02%	74,845 (+36)	+0.05%	256 (0)