feat: commit artifacts

[Le-Caignec]

Objective
Improve traceability and consistency of build artifacts by committing them to the repo and adding automatic verification.

Main changes:
• Renamed build folder from out/ to artifacts for consistency with Hardhat standards
• Build artifacts are now tracked in Git (removed from .gitignore)
• Added a CI workflow to verify artifacts: runs forge build, compares results with committed artifacts, and blocks PRs if they are outdated.

[Le-Caignec]

To be consistent with Hardhat. This will prevent client repositories from having to change folder names to get the ABI, depending on the framework we use. This is an internal complexity for us.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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  Coverage        ?   83.78%           
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  Files           ?        4           
  Lines           ?      111           
  Branches        ?        7           
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  Hits            ?       93           
  Misses          ?       17           
  Partials        ?        1           

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[zguesmi]

Since we only have a small number of contracts, why not just commit their artifacts instead of committing a lot of unused artifacts?
I think something like this would be enough:

# Ignore all artifacts except some files.
!/artifacts/
/artifacts/**
!/artifacts/*IexecLayerZeroBridge.sol
!/artifacts/*IexecLayerZeroBridge.sol/*
!/artifacts/*RLCCrosschainToken.sol
!/artifacts/*RLCCrosschainToken.sol/*
!/artifacts/*RLCLiquidityUnifier.sol
!/artifacts/*RLCLiquidityUnifier.sol/*

[Le-Caignec]

Yeah it's true @zguesmi . You're right
Do you think we should also commit the corresponding interface? Or not, since the main contract directly inherits from the interface?

[zguesmi]

Yeah it's true @zguesmi . You're right Do you think we should also commit the corresponding interface? Or not, since the main contract directly inherits from the interface?

It really depends on where we'll be using these artifacts. If interfaces are not useful for Tenderly we can remove them at least for now.

You can keep forge clean with the cache BTW, my question was to understand.