Code review request

[blindchaser]

Describe your changes and provide context

This PR adds a comprehensive code review document for commit 0d2a66ab4e4f14f861a951c7edff11622d94ca21. This commit introduces foundational abstractions for the FlatKV EVM state store, including interface definitions, typed keys, and MemIAVL key parsing utilities.

The review highlights positive aspects such as clean interface design, type safety, variable-length account encoding, and comprehensive test coverage. It also identifies minor issues and suggestions for improvement.

Testing performed to validate your change

This PR adds a documentation file, so no functional testing was performed for this change. The code review document itself confirms that the original code (0d2a66ab4e4f14f861a951c7edff11622d94ca21) was thoroughly tested with table-driven tests, round-trip encoding/decoding, and edge case coverage.

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Slack Thread

 

[cursor]

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[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 26, 2026, 8:02 PM

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.32%. Comparing base (55e60cb) to head (cf61542).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2763      +/-   ##
==========================================
- Coverage   57.01%   56.32%   -0.70%     
==========================================
  Files        2004     2000       -4     
  Lines      164629   164032     -597     
==========================================
- Hits        93869    92391    -1478     
- Misses      62557    63552     +995     
+ Partials     8203     8089     -114     

Flag	Coverage Δ
sei-chain	40.96% <ø> (-0.82%)	⬇️
sei-cosmos	48.02% <ø> (+<0.01%)	⬆️
sei-db	68.72% <ø> (ø)
sei-tendermint	59.01% <ø> (+<0.01%)	⬆️

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see 48 files with indirect coverage changes

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