fix(shop): map correct orderSnapshot and labels in InvoicePDF and routes

shop/components/invoice-pdf.tsx

@@ -176,7 +176,7 @@ export const InvoicePDF = ({ order, orderSnapshot, customer }: any) => {
             <View key={groupIdx} style={{ marginBottom: 12, borderWidth: 1, borderColor: '#e2e8f0', borderRadius: 4, padding: 8, backgroundColor: '#f8fafc' }}>
               <View style={{ borderBottomWidth: 1, borderBottomColor: '#cbd5e1', paddingBottom: 4, marginBottom: 6 }}>
                 <Text style={{ fontSize: 10, fontWeight: 'bold', color: '#1e3a8a' }}>
-                  Kasse: {deviceName}
+                  {deviceName === 'Zusatzleistung' ? 'Backoffice' : `Kasse: ${deviceName}`}
                 </Text>
               </View>
               {devItems.map((item: any, idx: number) => (