fix: simplify ListaPrecios filter to price list code + active status

Remove Source_Type filter to allow flexible assignment types per
price list in BC.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

woo-business-central/includes/class-wbc-product-sync.php

@@ -291,8 +291,7 @@ class WBC_Product_Sync {
     /**
      * Get price from ListaPrecios custom endpoint
      *
-     * Filters by: Assign-to Type = All Customers, Status = Active,
-     * Price List Code = specified code, and Product No. = item number.
+     * Filters by: Price List Code, Status = Activo, and Product No. = item number.
      *
      * @param string $item_number    BC item number.
      * @param string $price_list_code Price list code (e.g. 'B2C').
@@ -309,7 +308,6 @@ class WBC_Product_Sync {
         $result = WBC_API_Client::odata_get( 'ListaPrecios', array(
             '$filter' => "Price_List_Code eq '" . $escaped_code . "'"
                        . " and Status eq 'Activo'"
-                       . " and Source_Type eq 'Todos los clientes'"
                        . " and Product_No eq '" . $escaped_number . "'",
             '$select' => 'Unit_Price',
             '$top'    => 1,