Restore the original migration constant name as an alias so old references still resolve during production boot and migration loading. Add a regression test covering the legacy alias.
The migration file was named scope_plaid_account_uniqueness_to_item.rb
but the class inside was ScopePlaidItemUniqueness (renamed to avoid
secret-scanner false positive). Rails derives the expected constant from
the filename, causing a NameError in production.
Rename the file to scope_plaid_item_uniqueness.rb to match the class.
https://claude.ai/code/session_015AekNFxveK4W71nLxiqbX9
Co-authored-by: Claude <noreply@anthropic.com>
