Migration to create required global levels if they don't exist

[nickpalladino]

Description

Story:BI-2817

• Add rep and block global levels if they don't exist

Dependencies

• bi-api develop

Testing

• bi-api integration test run and pass (https://github.com/Breeding-Insight/bi-api/actions/runs/23441108362/job/68195441716)

Checklist:

• I have performed a self-review of my own code
• I have tested my code and ensured it meets the acceptance criteria of the story
• I have commented my code, particularly in hard-to-understand areas
• I have either updated the source of truth or arranged for update with product owner if needed https://breedinginsight.atlassian.net/wiki/spaces/BI/pages/1559953409/Source+of+Truth