Path A rename - DB values untouched, only TYPE_CHOICES display
labels change:
'New Loan' -> shown as 'Loan'
'Advance Payment' -> shown as 'Advance'
'Advance Repayment' -> shown as 'Advance Repaid'
Templates that render the type as visible text switched from
{{ adj.type }} to {{ adj.get_type_display }}. Data attributes and
CSS class slugs keep the raw DB value (identifiers, not labels).
Zero data migration. Zero changes to ADDITIVE_TYPES / DEDUCTIVE_TYPES
constants, hardcoded string comparisons, CSS class names, test
fixtures, or any other code that references the canonical DB value.
Every historic PayrollAdjustment row keeps type='New Loan' /
'Advance Payment' / 'Advance Repayment' as stored.
Django's makemigrations generated a no-op AlterField migration to
record the choices-metadata change.
Tests: 69/69.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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