Fix batch Payment Entry (paidAmountCents was 0), fix CTA button JS syntax error

- Batch invoice creation now calculates actual total from line items
- Fixed JS syntax error: `className = "..." style="..."` was invalid JS
  (style= outside string literal caused Unexpected identifier 'style')
- Portal menu: set hide_standard_menu=1 to remove duplicate sidebar items

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/src/routes/checkout.ts

@@ -1279,12 +1279,16 @@ export async function handlePaymentComplete(
 
           // Create Sales Invoice
           try {
+            // Calculate batch total (sum of all line items minus discounts)
+            const batchTotalCents = (batchRows.rows as any[]).reduce((sum, bo) => {
+              return sum + (bo.service_fee_cents || 0) + (bo.gov_fee_cents || 0) - (bo.discount_cents || 0);
+            }, 0);
             const invName = await createInvoiceFromSalesOrder({
               salesOrderName: soName,
               paymentGateway: paymentMethod,
               surchargePercent: (order.surcharge_pct as number) || 0,
               paymentReference: session_id,
-              paidAmountCents: 0,
+              paidAmountCents: batchTotalCents,
               externalOrderId: batchId,
             });
             if (invName) {