Add ticket sorting by status priority, updated, or created date

Default sort: status priority (käsittelyssä → uusi → odottaa → suljettu)
then by updated date within same status.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

script.js

@@ -1083,6 +1083,23 @@ function renderTickets() {
         );
     }
 
+    // Sorttaus: tila-prioriteetti + päivämäärä
+    const ticketSortField = document.getElementById('ticket-sort')?.value || 'status';
+    const statusPriority = { kasittelyssa: 0, uusi: 1, odottaa: 2, suljettu: 3 };
+    filtered.sort((a, b) => {
+        if (ticketSortField === 'status') {
+            const pa = statusPriority[a.status] ?? 9;
+            const pb = statusPriority[b.status] ?? 9;
+            if (pa !== pb) return pa - pb;
+            return (b.updated || '').localeCompare(a.updated || '');
+        } else if (ticketSortField === 'updated') {
+            return (b.updated || '').localeCompare(a.updated || '');
+        } else if (ticketSortField === 'created') {
+            return (b.created || '').localeCompare(a.created || '');
+        }
+        return 0;
+    });
+
     const ttbody = document.getElementById('tickets-tbody');
     const noTickets = document.getElementById('no-tickets');
     if (filtered.length === 0) {
@@ -1137,6 +1154,7 @@ document.getElementById('ticket-search-input').addEventListener('input', () => r
 document.getElementById('ticket-status-filter').addEventListener('change', () => renderTickets());
 document.getElementById('ticket-type-filter').addEventListener('change', () => renderTickets());
 document.getElementById('ticket-tag-filter').addEventListener('input', () => renderTickets());
+document.getElementById('ticket-sort').addEventListener('change', () => renderTickets());
 document.getElementById('ticket-show-closed').addEventListener('change', () => renderTickets());
 document.getElementById('bulk-select-all').addEventListener('change', function() {
     const checkboxes = document.querySelectorAll('.ticket-checkbox');