Add auto-refresh toggle and tab persistence via URL hash

- Auto-refresh checkbox with configurable interval (30s-5min)
- URL hash (#support, #customers etc.) persists active tab on refresh
- switchToTab() centralized function for tab switching
- Logo click uses same function

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

script.js

@@ -170,35 +170,43 @@ async function showDashboard() {
     // Näytä admin-toiminnot vain adminille
     document.getElementById('btn-users').style.display = currentUser.role === 'admin' ? '' : 'none';
     document.getElementById('tab-settings').style.display = currentUser.role === 'admin' ? '' : 'none';
-    await loadCustomers();
+    // Avaa oikea tabi URL-hashin perusteella (tai customers oletuks)
+    const hash = window.location.hash.replace('#', '');
+    const validTabs = ['customers', 'leads', 'archive', 'changelog', 'support', 'users', 'settings'];
+    const startTab = validTabs.includes(hash) ? hash : 'customers';
+    switchToTab(startTab);
 }
 
 // ==================== TABS ====================
 
+function switchToTab(target) {
+    document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
+    document.querySelectorAll('.tab-content').forEach(c => c.classList.remove('active'));
+    const tabBtn = document.querySelector(`.tab[data-tab="${target}"]`);
+    if (tabBtn) tabBtn.classList.add('active');
+    const content = document.getElementById('tab-content-' + target);
+    if (content) content.classList.add('active');
+    // Tallenna aktiivinen tabi URL-hashiin
+    window.location.hash = target;
+    // Lataa sisältö tarvittaessa
+    if (target === 'customers') loadCustomers();
+    if (target === 'leads') loadLeads();
+    if (target === 'archive') loadArchive();
+    if (target === 'changelog') loadChangelog();
+    if (target === 'support') { loadTickets(); showTicketListView(); }
+    if (target === 'users') loadUsers();
+    if (target === 'settings') loadSettings();
+}
+
 document.querySelectorAll('.tab').forEach(tab => {
     tab.addEventListener('click', () => {
-        document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
-        document.querySelectorAll('.tab-content').forEach(c => c.classList.remove('active'));
-        tab.classList.add('active');
-        const target = tab.dataset.tab;
-        document.getElementById('tab-content-' + target).classList.add('active');
-        // Lataa sisältö tarvittaessa
-        if (target === 'leads') loadLeads();
-        if (target === 'archive') loadArchive();
-        if (target === 'changelog') loadChangelog();
-        if (target === 'support') { loadTickets(); showTicketListView(); }
-        if (target === 'users') loadUsers();
-        if (target === 'settings') loadSettings();
+        switchToTab(tab.dataset.tab);
     });
 });
 
 // Logo -> Asiakkaat (alkunäkymä)
 document.getElementById('brand-home').addEventListener('click', () => {
-    document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
-    document.querySelectorAll('.tab-content').forEach(c => c.classList.remove('active'));
-    document.querySelector('.tab[data-tab="customers"]').classList.add('active');
-    document.getElementById('tab-content-customers').classList.add('active');
-    loadCustomers();
+    switchToTab('customers');
 });
 
 // Käyttäjät-nappi headerissa
@@ -1291,6 +1299,44 @@ document.getElementById('btn-fetch-emails').addEventListener('click', async () =
     }
 });
 
+// ==================== TICKET AUTO-REFRESH ====================
+
+let ticketAutoRefreshTimer = null;
+
+function startTicketAutoRefresh() {
+    stopTicketAutoRefresh();
+    const seconds = parseInt(document.getElementById('ticket-refresh-interval').value) || 60;
+    ticketAutoRefreshTimer = setInterval(() => {
+        // Vain jos support-tabi on aktiivinen ja listanäkymä näkyy
+        const supportActive = document.getElementById('tab-content-support').classList.contains('active');
+        const listVisible = document.getElementById('ticket-list-view').style.display !== 'none';
+        if (supportActive && listVisible) {
+            loadTickets();
+        }
+    }, seconds * 1000);
+}
+
+function stopTicketAutoRefresh() {
+    if (ticketAutoRefreshTimer) {
+        clearInterval(ticketAutoRefreshTimer);
+        ticketAutoRefreshTimer = null;
+    }
+}
+
+document.getElementById('ticket-auto-refresh').addEventListener('change', function() {
+    if (this.checked) {
+        startTicketAutoRefresh();
+    } else {
+        stopTicketAutoRefresh();
+    }
+});
+
+document.getElementById('ticket-refresh-interval').addEventListener('change', function() {
+    if (document.getElementById('ticket-auto-refresh').checked) {
+        startTicketAutoRefresh(); // Käynnistä uudelleen uudella intervallilla
+    }
+});
+
 // ==================== TICKET RULES (AUTOMAATTISÄÄNNÖT) ====================
 
 let ticketRules = [];