test(flatkv): add EVM migration docker integration coverage

[blindchaser]

Describe your changes and provide context

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	May 7, 2026, 12:29 AM

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: a9518ab773

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

Avoid finalizing partial imports after errors

Because this deferred Close runs on every return path, any error after some nodes have been added but before the explicit successful close—such as an exporter error, context cancellation, or an invalid EVM key from migrateEVMNode—still calls KVImporter.Close, which finalizes the import, writes a snapshot, and leaves a committed partial FlatKV store even though the command reports failure. This can make a failed migration look retryable while leaving corrupted migrated state on disk; only finalize on the success path or add an abort/cleanup path for failures.

Useful? React with 👍 / 👎.

[codecov]

Codecov Report

❌ Patch coverage is 48.33333% with 124 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.02%. Comparing base (ab54587) to head (77566a6).

Files with missing lines	Patch %	Lines
.../cmd/seidb/operations/migrate_memiavl_to_flatkv.go	46.00%	93 Missing and 22 partials ⚠️
sei-db/state_db/sc/flatkv/importer.go	64.70%	4 Missing and 2 partials ⚠️
sei-db/state_db/sc/memiavl/import.go	0.00%	2 Missing ⚠️
sei-db/tools/cmd/seidb/main.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3400      +/-   ##
==========================================
- Coverage   59.03%   59.02%   -0.02%     
==========================================
  Files        2105     2106       +1     
  Lines      173300   173529     +229     
==========================================
+ Hits       102312   102421     +109     
- Misses      62104    62202      +98     
- Partials     8884     8906      +22     

Flag	Coverage Δ
sei-chain-pr	63.83% <48.33%> (?)
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
sei-db/state_db/sc/composite/importer.go	94.11% <100.00%> (+1.52%)	⬆️
sei-db/tools/cmd/seidb/main.go	0.00% <0.00%> (ø)
sei-db/state_db/sc/memiavl/import.go	73.03% <0.00%> (-0.83%)	⬇️
sei-db/state_db/sc/flatkv/importer.go	83.05% <64.70%> (-0.88%)	⬇️
.../cmd/seidb/operations/migrate_memiavl_to_flatkv.go	46.00% <46.00%> (ø)

🚀 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.