feat: add 64bits support

[immortal-tofu]

• Tests are running on the CI launched manually with latest version of KMS/fhevm-go https://github.com/zama-ai/zbc-ethermint/actions/runs/7844274084/job/21408137996
• Mocks has been updated to support 64bits
• Contracts has been moved to euint64 (ERC20/Governor/Comp/Identity/...)
• fhevmjs has a prerelease which supports 64bits https://github.com/zama-ai/fhevmjs/releases

[immortal-tofu]

Tests won't work until we have a proper dev image cc @leventdem

[jatZama]

Tests won't work until we have a proper dev image cc @leventdem

is this what is causing the nonce errors in the tests?

[jatZama]

correct not_euint32 in overload.ts

[immortal-tofu]

Tests won't work until we have a proper dev image cc @leventdem

is this what is causing the nonce errors in the tests?

Yes, basically the first test to fail make the next tests failing for a nonce reason. Two things change regarding running tests:

• We need the new stack with 64bits support and tfhe-rs 0.5.1
• We need a computer capable to run multiplication over two euint64 in less than 7seconds: this is not possible on my M1 or on the default CI. That's why I switched to large_ubuntu_16 in GitHub Actions.

[david-zk]

💪