Build the Ethereum chain config once per fee check

[amir-deris]

There are areas we build the ChainConfig twice and it can simply be built once and reused to improve performance.

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Apr 2, 2026, 3:52 PM

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.56%. Comparing base (fedf0f8) to head (7bba778).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
app/ante/evm_checktx.go	66.66%	1 Missing ⚠️
x/evm/ante/fee.go	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3165      +/-   ##
==========================================
- Coverage   58.62%   58.56%   -0.07%     
==========================================
  Files        2055     2099      +44     
  Lines      168301   173362    +5061     
==========================================
+ Hits        98670   101531    +2861     
- Misses      60861    62687    +1826     
- Partials     8770     9144     +374     

Flag	Coverage Δ
sei-chain-pr	49.63% <66.66%> (?)
sei-db	70.41% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
app/ante/evm_checktx.go	35.37% <66.66%> (+0.16%)	⬆️
x/evm/ante/fee.go	73.01% <66.66%> (+1.14%)	⬆️

... and 115 files with indirect coverage changes

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[bdchatham]

LGTM