Debug Trace Speedup

[Kbhat1]

Describe your changes and provide context

• Avoid store-tracer overhead on ordinary debug_trace* calls; use debug_traceStateAccess when Cosmos/store-level access tracing is needed
• Add a tracing-only DBImpl read cache for repeated code, nonce, balance, and storage lookups
• Parallelize native/default block trace execution across per-tx prestate snapshots while preserving ordered state advancement (largest improvement)

Testing performed to validate your change

• Tested on node

[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	Mar 18, 2026, 2:41 AM

[codecov]

Codecov Report

❌ Patch coverage is 15.68627% with 258 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.12%. Comparing base (42245eb) to head (1fc87eb).

Files with missing lines	Patch %	Lines
evmrpc/block_trace_profiled.go	10.52%	225 Missing and 13 partials ⚠️
evmrpc/tracers.go	59.09%	3 Missing and 6 partials ⚠️
x/evm/state/balance.go	25.00%	2 Missing and 4 partials ⚠️
sei-cosmos/types/context.go	42.85%	2 Missing and 2 partials ⚠️
x/evm/state/code.go	0.00%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (15.68%) is below the target coverage (50.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3058      +/-   ##
==========================================
- Coverage   58.73%   58.12%   -0.61%     
==========================================
  Files        2090     2074      -16     
  Lines      172323   171754     -569     
==========================================
- Hits       101209    99836    -1373     
- Misses      62128    62980     +852     
+ Partials     8986     8938      -48     

Flag	Coverage Δ
sei-chain-pr	67.31% <15.68%> (?)
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/app.go	61.13% <100.00%> (-6.09%)	⬇️
x/evm/state/code.go	82.35% <0.00%> (ø)
sei-cosmos/types/context.go	92.30% <42.85%> (-1.37%)	⬇️
x/evm/state/balance.go	60.20% <25.00%> (-1.76%)	⬇️
evmrpc/tracers.go	63.87% <59.09%> (-1.69%)	⬇️
evmrpc/block_trace_profiled.go	10.52% <10.52%> (ø)

... and 103 files with indirect coverage changes

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