## Why
After the changes on relations, index on relations were skipped by the
syncmetadata service, so no more migrations were generated for relation
fields.
We wanted to fix this.
## Test
This PR adds unit tests for the `createIndexMigration` utility in the
workspace migration builder. The tests cover:
- Creating index migrations for simple fields (e.g., text fields)
- Creating index migrations for relation fields (ensuring correct column
naming, e.g., `authorId` for the `author` objectmetadataname)
## Excluded
The delete index on relation does not need the column names so i don't
think i needed to work on this method. I might be wrong.
## Checklist
- [x] Added/updated unit tests for index migration creation
- [x] Verified correct handling of simple and relation fields
- [x] Ensured all tests pass
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Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
Co-authored-by: Charles Bochet <charles@twenty.com>
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