Change 'Rack' to 'Bin'

app/ics/api/engine/location_barcode_label.php

@@ -8,7 +8,7 @@
     $warehouse_id = (int)($data['warehouse_id'] ?? 0);
     $zone         = trim($data['zone'] ?? '');
     $aisle        = trim($data['aisle'] ?? '');
-    $rack         = trim($data['rack'] ?? '');
+    $bin         = trim($data['bin'] ?? '');
 
     if ($label_action !== 'list') {
         require_role($user_role, ['owner', 'admin', 'staff']);
@@ -56,14 +56,14 @@
     }
 
     // Default: create
-    if ($barcode === '' || !$warehouse_id || $rack === '') {
+    if ($barcode === '' || !$warehouse_id || $bin === '') {
         $answer['message'] = 'Location barcode data is incomplete.';
         http_response_code(400);
         exit(json_encode($answer));
     }
 
     try {
-        $output            = $bm->createLocationLabel($barcode, $warehouse_id, $zone, $aisle, $rack);
+        $output            = $bm->createLocationLabel($barcode, $warehouse_id, $zone, $aisle, $bin);
         $answer['success'] = 1;
         $answer['output']  = $output;
     } catch (Exception $e) {

app/ics/api/engine/retrieve_rack.php

@@ -13,11 +13,11 @@
     if (isset($data['warehouse_to'])   && $type === 'to')   { $warehouse = (int)$data['warehouse_to'];   $zone = $data['zone_to']   ?? $zone; $aisle = $data['aisle_to']   ?? $aisle; }
 
     if (!empty($data['id'])) {
-        $output = $whMgmt->getRacksAll($warehouse, $zone, $aisle);
+        $output = $whMgmt->getBinsAll($warehouse, $zone, $aisle);
     } elseif ($type === 'to') {
-        $output = $whMgmt->getRacksIn($warehouse, $zone, $aisle);
+        $output = $whMgmt->getBinsIn($warehouse, $zone, $aisle);
     } elseif ($type === 'from') {
-        $output = $whMgmt->getRacksOut(
+        $output = $whMgmt->getBinsOut(
             $warehouse,
             $zone,
             $aisle,
@@ -26,7 +26,7 @@
             $data['serial_number'] ?? null
         );
     } else {
-        $output = $whMgmt->getRacksAll($warehouse, $zone, $aisle);
+        $output = $whMgmt->getBinsAll($warehouse, $zone, $aisle);
     }
 
     $answer['output']  = $output;

app/ics/api/engine/retrieve_warehouse.php

@@ -10,7 +10,7 @@
     $id       = (int)($data['id']    ?? 0);
 
     // When type=from and a lot is selected, filter warehouses to only those
-    // holding that specific lot in an approved, rack-occupied stock-in row.
+    // holding that specific lot in an approved, bin-occupied stock-in row.
     if ($type === 'from' && $sku && $lot) {
         $answer['output'] = $wh->getWarehousesByLot($sku, $lot);
     } else {

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