Backport release/v6.5: fix(evmrpc): return empty array instead of null for eth_getFilterLogs and eth_getFilterChanges

[seidroid]

Backport of #3292 to release/v6.5.

[seidroid]

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin backport-3292-to-release/v6.5
git worktree add --checkout .worktree/backport-3292-to-release/v6.5 backport-3292-to-release/v6.5
cd .worktree/backport-3292-to-release/v6.5
git reset --hard HEAD^
git cherry-pick -x 0ad5733844536ef11c057e5624bb3e949c99cb9a
git push --force-with-lease

[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 28, 2026, 6:11 PM

[codecov]

Codecov Report

❌ Patch coverage is 25.00000% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.34%. Comparing base (afda866) to head (fe0e28e).
⚠️ Report is 1 commits behind head on release/v6.5.

Files with missing lines	Patch %	Lines
evmrpc/filter.go	25.00%	4 Missing and 2 partials ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##           release/v6.5    #3325   +/-   ##
=============================================
  Coverage         58.34%   58.34%           
=============================================
  Files              2091     2091           
  Lines            173036   173041    +5     
=============================================
+ Hits             100951   100956    +5     
  Misses            63080    63080           
  Partials           9005     9005           

Flag	Coverage Δ
sei-chain-pr	63.32% <25.00%> (?)
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/filter.go	69.76% <25.00%> (+0.22%)	⬆️

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