Fix item counts, PR/QT conversions, validation and department loss

app/expense/purchase_request.php

@@ -180,7 +180,7 @@
       return;
     }
     $.each(rows, function(i, r) {
-      var items = typeof r.items === 'string' ? JSON.parse(r.items || '[]') : (r.items || []);
+      var item_count = parseInt(r.item_count) || 0;
       var po_link = r.po_id > 0
         ? `<a href="<?php echo $server_url?>expense/manage_purchase_order.php?id=${r.po_id}">${escape_html(r.po_number || ('PO #' + r.po_id))}</a>`
         : '<span class="text-muted">—</span>';
@@ -190,7 +190,7 @@
         <td class="py-3">${r.required_date ? format_date(r.required_date) : '<span class="text-muted">—</span>'}</td>
         <td class="py-3">${escape_html(r.contact_name || '—')}</td>
         <td class="py-3">${get_dept_label(r.department_id)}</td>
-        <td class="py-3">${items.length} item${items.length !== 1 ? 's' : ''}</td>
+        <td class="py-3">${item_count} item${item_count !== 1 ? 's' : ''}</td>
         <td class="py-3 fw-semibold">${format_number(r.grand_total, 2)}</td>
         <td class="py-3">${status_badge[String(r.status)] || r.status}</td>
         <td class="py-3">${po_link}</td>