style: Apply PSR-12 formatting

- Fix PHPDoc comment format in item_sort_columns() helper
- Remove duplicate blank line after properties in Item model
- Remove unused variable assignment in Items controller

app/Controllers/Items.php

@@ -109,15 +109,12 @@ class Items extends Secure_Controller
         $offset = $this->request->getGet('offset', FILTER_SANITIZE_NUMBER_INT);
 
         $definition_names = $this->attribute->get_definitions_by_flags(Attribute::SHOW_IN_ITEMS);
-        $attribute_column_ids = array_keys($definition_names);
 
         $sort = $this->sanitizeSortColumn(item_sort_columns(), $this->request->getGet('sort', FILTER_SANITIZE_FULL_SPECIAL_CHARS), 'items.item_id');
         $order = $this->request->getGet('order', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
 
         $this->item_lib->set_item_location($this->request->getGet('stock_location'));
 
-        $definition_names = $this->attribute->get_definitions_by_flags(Attribute::SHOW_IN_ITEMS);
-
         $filters = [
             'start_date'        => $this->request->getGet('start_date'),
             'end_date'          => $this->request->getGet('end_date'),

app/Helpers/tabular_helper.php

@@ -402,7 +402,8 @@ function item_headers(): array
 }
 
 /**
- * Get all sortable column keys for items table, including dynamic attribute columns
+ * Get all sortable column keys for items table, including dynamic attribute columns.
+ *
  * @return array Array of column keys that are valid for sorting
  */
 function item_sort_columns(): array

app/Models/Item.php

@@ -59,7 +59,6 @@ class Item extends Model
         'hsn_code'
     ];
 
-
     /**
      * Determines if a given item_id is an item
      */