Change 'Rack' to 'Bin'

app/ics/api/engine/validate_scan_location.php

@@ -11,7 +11,7 @@
     $warehouse_id = (int)($data['warehouse_id'] ?? 0);
     $zone         = trim($data['zone'] ?? '');
     $aisle        = trim($data['aisle'] ?? '');
-    $rack         = trim($data['rack'] ?? '');
+    $bin         = trim($data['bin'] ?? '');
     $product_sku  = trim($data['product_sku'] ?? '');
     $lot_number   = trim($data['lot_number'] ?? '');
     $serial       = trim($data['serial_number'] ?? '');
@@ -22,7 +22,7 @@
             $warehouse_id,
             $zone,
             $aisle,
-            $rack,
+            $bin,
             $product_sku,
             $lot_number,
             $serial