feat(helpdesk): enrich team ticket table with links, customer name, description, last activity

- Switch gateway from PBI_LV_Tickets to PBI_FP_Tickets to get
  Description and Company_Contact_Name fields
- Ticket number links to ticket detail page
- Customer column shows Company_Contact_Name with link to debitor detail
- Description column with text-overflow ellipsis
- Last activity column shows formatted date (was: age in hours)
- Backend provides last_activity ISO string and customer_name per ticket
- Table headers use i18n labels via data attributes

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

modules/helpdesk/web/css/helpdesk.css

@@ -202,10 +202,36 @@
   .helpdesk-team-ticket-no {
     font-variant-numeric: tabular-nums;
     font-weight: 500;
+    white-space: nowrap;
+  }
+
+  .helpdesk-team-ticket-no a,
+  .helpdesk-team-ticket-table td a {
+    color: inherit;
+    text-decoration: none;
+  }
+
+  .helpdesk-team-ticket-no a:hover,
+  .helpdesk-team-ticket-table td a:hover {
+    color: var(--app-primary, #0d6efd);
+    text-decoration: underline;
+  }
+
+  .helpdesk-team-ticket-desc {
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    max-width: 20ch;
+  }
+
+  .helpdesk-team-ticket-date {
+    white-space: nowrap;
+    color: var(--app-muted-color);
   }
 
   /* Critical: only highlight the ticket number, not the entire row */
-  .helpdesk-team-ticket-critical .helpdesk-team-ticket-no {
+  .helpdesk-team-ticket-critical .helpdesk-team-ticket-no,
+  .helpdesk-team-ticket-critical .helpdesk-team-ticket-no a {
     color: var(--app-warning, #f59e0b);
     font-weight: 600;
   }

modules/helpdesk/web/js/helpdesk-team.js

@@ -10,6 +10,8 @@ if (container) {
   const labelQueue = container.dataset.labelQueue || 'Queue';
   const labelTickets = container.dataset.labelTickets || 'Tickets';
   const labelCritical = container.dataset.labelCritical || 'Critical (>48h open)';
+  const ticketBaseUrl = container.dataset.ticketBaseUrl || '';
+  const debitorBaseUrl = container.dataset.debitorBaseUrl || '';
 
   const elLoading = document.getElementById('team-loading');
   const elError = document.getElementById('team-error');
@@ -55,18 +57,46 @@ if (container) {
     return d.toLocaleDateString(undefined, { day: '2-digit', month: '2-digit', year: 'numeric' });
   }
 
+  function formatDateTime(isoString) {
+    if (!isoString) return '—';
+    const d = new Date(isoString);
+    if (isNaN(d.getTime())) return '—';
+    return d.toLocaleDateString(undefined, { day: '2-digit', month: '2-digit', year: 'numeric' });
+  }
+
   /**
-   * Build a ticket table row: No | Customer | Last activity | Age
+   * Build a ticket table row: No (link) | Customer (link) | Description | Last activity
    */
   function buildTicketRow(t) {
     const tr = h('tr', t.critical ? 'helpdesk-team-ticket-critical' : '');
 
-    const noCell = h('td', 'helpdesk-team-ticket-no', t.no);
+    // Ticket number as link
+    const noCell = h('td', 'helpdesk-team-ticket-no');
+    if (ticketBaseUrl && t.no) {
+      const a = h('a', '', t.no);
+      a.href = ticketBaseUrl + encodeURIComponent(t.no);
+      noCell.appendChild(a);
+    } else {
+      noCell.textContent = t.no || '—';
+    }
     tr.appendChild(noCell);
-    tr.appendChild(h('td', '', t.customer || '—'));
-    tr.appendChild(h('td', '', t.description || '—'));
-    const ageCell = h('td', '', formatAge(t.age_hours));
-    tr.appendChild(ageCell);
+
+    // Customer name as link to debitor
+    const customerCell = h('td');
+    if (debitorBaseUrl && t.customer_name) {
+      const a = h('a', '', t.customer_name);
+      a.href = debitorBaseUrl + encodeURIComponent(t.customer_name);
+      customerCell.appendChild(a);
+    } else {
+      customerCell.textContent = t.customer_name || '—';
+    }
+    tr.appendChild(customerCell);
+
+    // Description
+    tr.appendChild(h('td', 'helpdesk-team-ticket-desc', t.description || '—'));
+
+    // Last activity date
+    tr.appendChild(h('td', 'helpdesk-team-ticket-date', formatDateTime(t.last_activity)));
 
     return tr;
   }
@@ -97,10 +127,10 @@ if (container) {
       const table = h('table', 'helpdesk-team-ticket-table');
       const thead = h('thead');
       const headRow = h('tr');
-      headRow.appendChild(h('th', '', 'Ticket'));
-      headRow.appendChild(h('th', '', 'Kunde'));
-      headRow.appendChild(h('th', '', 'Beschreibung'));
-      headRow.appendChild(h('th', '', 'Alter'));
+      headRow.appendChild(h('th', '', container.dataset.labelTicket || 'Ticket'));
+      headRow.appendChild(h('th', '', container.dataset.labelCustomer || 'Customer'));
+      headRow.appendChild(h('th', '', container.dataset.labelDescription || 'Description'));
+      headRow.appendChild(h('th', '', container.dataset.labelLastActivity || 'Last activity'));
       thead.appendChild(headRow);
       table.appendChild(thead);