Add ancillary indexes to improve deletion.

[blkt]

Summary

Provider deletion, or entity deletion in general, runs into performance problems without this indexes as two triggers for constraint were executing full table scans on pretty crowded tables.

These two indexes solve that problem.

Change Type

Mark the type of change your PR introduces:

• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
• Documentation (updates or additions to documentation)
• Refactoring or test improvements (no bug fixes or new functionality)

Testing

Tested in sandbox.

Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[coveralls]

coverage: 52.735% (-0.004%) from 52.739%
when pulling d315c79 on fix/evaluation-id-indexes-migration
into ac573e7 on main.