Add ``getStatusBadge()`` to ``Orders`` returning Bootstrap badge HTML
per status: warning (En attente), info (Préparation), primary
(Expédié), success (Livré), danger (Annulé). Applied to all four
order DataTables (admin, admin customer, shop, shop customer).
When an order has status 0 ("En attente") and payment type is check
or wire transfer, the customer-facing order list now displays
"En attente de règlement" instead of the generic "En attente".