Wire POS register loyalty earn and redeem through CRM.

Redeem at charge, earn on payment, reverse on cancel, and surface
balances on the till, customer display, sales, and receipts.

app/Models/PosSale.php

@@ -52,6 +52,10 @@ class PosSale extends Model
         'customer_phone',
         'crm_customer_id',
         'subtotal_minor',
+        'loyalty_discount_minor',
+        'loyalty_points_redeemed',
+        'loyalty_points_earned',
+        'loyalty_external_ref',
         'total_minor',
         'currency',
         'paid_at',
@@ -64,6 +68,9 @@ class PosSale extends Model
     {
         return [
             'subtotal_minor' => 'integer',
+            'loyalty_discount_minor' => 'integer',
+            'loyalty_points_redeemed' => 'integer',
+            'loyalty_points_earned' => 'integer',
             'total_minor' => 'integer',
             'pay_order_id' => 'integer',
             'crm_customer_id' => 'integer',