# POS-FIX-1 — Add explicit return transitions to POS order state machine

## Fix
Added COMPLETED→REFUNDED and COMPLETED→PARTIALLY_REFUNDED to ALLOWED_TRANSITIONS. Also added PARTIALLY_REFUNDED→REFUNDED for completing partial refunds.

## Files changed
- src/modules/orders/domain/order.ts (ALLOWED_TRANSITIONS)
- src/modules/orders/tests/order-state-machine.test.ts

## Verification
- npm test: 271 passed
- tsc POS app: 0 errors