Geo primary verification API: Add support for composite primary keys

Chloe Fonsrequested to merge
559272-geo-primary-verification-api-add-support-for-composite-primary-keys into master

What does this MR do and why?

Add support for composite primary keys

This MR changes the id field to support strings and calculate a B64 URL safe ID for models with a composite primary key.

References

Geo Primary Verification API: Add support for c... (#559272 - closed)

How to set up and validate locally

  1. Enable the feature flag in Rails console Feature.enable(:geo_primary_verification_view);
  2. Test the new API endpoint as an admin user:
# Replace YOUR_ADMIN_TOKEN with an actual admin personal access token
curl -H "Authorization: Bearer YOUR_ADMIN_TOKEN" \
     "http://localhost:3000/api/v4/admin/data_management/lfs_object/1"
  1. Verify the response contains the expected fields:
  • primary_identifier, model_class, created_at
  • Geo verification fields: checksum, checksum_state, checksum_retry_count, etc.

There is no models with composite primary keys in the set of allowed models yet for this API, so it's not possible to manually check composite keys' behaviour.

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Related to #559272 (closed)

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