# v73.1 — Inventory Movement Type Constraint Repair

The v73 focused test exposed a PostgreSQL domain constraint mismatch.

v73 introduced two legitimate inventory-ledger movement types:
- supplier_return
- quarantine_release

The inventory ledger database CHECK constraint still contained the pre-v73 movement list,
so PostgreSQL correctly rejected supplier-return posting.

This repair:
- extends `inventory_movements_type_check`
- preserves all existing production reversal movement types
- adds `supplier_return`
- adds `quarantine_release`
- does not alter ledger posting logic
- does not edit or delete existing movement history

The fix is a forward migration because the v73 migration may already be applied on developer databases.