WIP: Giga RPC node

[arajasek]

Describe your changes and provide context

This is a WIP changeset that will allow us to execute txs on mainnet today using the Giga executor. It currently:

• uses the Geth executor (not EVMC)
• only supports synchronous execution (no OCC)
• builds off of Add failfast precompile to detect interop #2670
• points to feat: add AbortError which bubbles up the callstack go-ethereum#78

TODO:

• support Giga OCC
• Land Add failfast precompile to detect interop #2670
• Land feat: add AbortError which bubbles up the callstack go-ethereum#78
• Run on mainnet?

Testing performed to validate your change

[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	Jan 16, 2026, 10:35 PM

[codecov]

Codecov Report

❌ Patch coverage is 3.03030% with 96 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.74%. Comparing base (91ef5cb) to head (b8763f8).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
app/app.go	3.48%	80 Missing and 3 partials ⚠️
giga/executor/utils/errors.go	0.00%	5 Missing ⚠️
giga/executor/executor.go	0.00%	4 Missing ⚠️
giga/executor/precompiles/failfast.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2708      +/-   ##
==========================================
- Coverage   43.76%   43.74%   -0.03%     
==========================================
  Files        1914     1914              
  Lines      159504   159573      +69     
==========================================
- Hits        69801    69799       -2     
- Misses      83284    83352      +68     
- Partials     6419     6422       +3     

Flag	Coverage Δ
sei-chain	45.72% <3.03%> (-0.05%)	⬇️
sei-cosmos	38.20% <ø> (-0.01%)	⬇️
sei-db	68.72% <ø> (ø)
sei-tendermint	47.28% <ø> (+<0.01%)	⬆️

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

Files with missing lines	Coverage Δ
giga/executor/executor.go	0.00% <0.00%> (ø)
giga/executor/precompiles/failfast.go	0.00% <0.00%> (ø)
giga/executor/utils/errors.go	0.00% <0.00%> (ø)
app/app.go	54.35% <3.48%> (-2.53%)	⬇️

... and 12 files with indirect coverage changes

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