fix: eth_getBlockTransactionCountByNumber returns inconsistent count vs eth_getBlockByNumber

[mojtaba-esk]

Describe your changes and provide context

Context: PLT-193

Fixes PLT-193

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	Mar 30, 2026, 6:08 AM

[codecov]

Codecov Report

❌ Patch coverage is 77.41935% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.74%. Comparing base (03ed612) to head (7285832).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
evmrpc/block.go	77.41%	6 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3125      +/-   ##
==========================================
+ Coverage   58.72%   58.74%   +0.01%     
==========================================
  Files        2094     2094              
  Lines      173166   173073      -93     
==========================================
- Hits       101697   101667      -30     
+ Misses      62412    62335      -77     
- Partials     9057     9071      +14     

Flag	Coverage Δ
sei-chain-pr	67.83% <77.41%> (?)
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
evmrpc/block.go	81.76% <77.41%> (+2.86%)	⬆️

... and 29 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[bdchatham]

Would exporting this break something as opposed to creating the helper below that delegates?

[mojtaba-esk]

Not at all. just trying to hide the logic in an unexported func. and that exported is also to serve the evm_test which is another pkg.