fix test and add invocie to parent enrollment

app/Views/invoice_payment/invoice_management.php

@@ -147,7 +147,7 @@
     }
     function renderInvoiceRow(r) {
       const isCarryForward = !!r.is_carry_forward;
-      const ts = Date.parse(r.invoice_date || new Date().toISOString());
+      const ts = Date.parse(r.invoice_date || '');
       const genBtn = isCarryForward
         ? '<span class="text-muted small">Audit only</span>'
         : `<button type=\"button\" class=\"btn btn-primary btn-sm gen-invoice\" data-parent-id=\"${escAttr(r.parent_id)}\" data-parent-name=\"${escAttr(r.parent_name || '')}\">Generate Invoice</button>`;
@@ -165,11 +165,12 @@
         genBtn,
         fmtMoney(r.invoice_amount),
         renderRefundCell(r),
-        `<span data-order=\"${ts}\">${formatDateTime(ts)}</span>`,
+        `<span data-order=\"${Number.isNaN(ts) ? 0 : ts}\">${Number.isNaN(ts) ? '' : formatDateTime(ts)}</span>`,
         pdf,
       ];
     }
 
+
     async function generateInvoice(parentId) {
       const body = new URLSearchParams();
       body.append('parent_id', parentId);