feat: Implement migration script for combined layout

[infrmtcs]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 255 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.72%. Comparing base (b6b926b) to head (7aa89b8).

Files with missing lines	Patch %	Lines
migration/blocktransactions/ingestor.go	0.00%	91 Missing ⚠️
migration/blocktransactions/blocktransactions.go	0.00%	45 Missing ⚠️
migration/blocktransactions/check_status.go	0.00%	33 Missing ⚠️
migration/blocktransactions/counter.go	0.00%	29 Missing ⚠️
migration/blocktransactions/committer.go	0.00%	26 Missing ⚠️
migration/blocktransactions/batch_provider.go	0.00%	17 Missing ⚠️
migration/blocktransactions/pipeline.go	0.00%	14 Missing ⚠️

❌ Your patch check has failed because the patch coverage (0.00%) is below the target coverage (60.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3355      +/-   ##
==========================================
- Coverage   76.36%   75.72%   -0.65%     
==========================================
  Files         351      358       +7     
  Lines       33309    33564     +255     
==========================================
- Hits        25438    25416      -22     
- Misses       6062     6333     +271     
- Partials     1809     1815       +6     

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[EgeCaner]

How we will proceed iftransactions != receipts? Seems like this will failvalidateCountand we can exit early here since transactions != receipts should hint DB corruption.

[EgeCaner]

Does clearOldBuckets had positive effect? If so can you add brief comment why we call it while !shouldMigrate is hinting buckets are already empty