ui: simplify header with logo, auto-refresh on by default

- When company logo is set, show only "Hallintapaneeli" without
  company name (logo identifies the company)
- Ticket auto-refresh checkbox is checked by default
- Auto-refresh starts when switching to support tab

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

script.js

@@ -235,7 +235,7 @@ function switchToTab(target) {
     if (target === 'leads') loadLeads();
     if (target === 'archive') loadArchive();
     if (target === 'changelog') loadChangelog();
-    if (target === 'support') { loadTickets(); showTicketListView(); }
+    if (target === 'support') { loadTickets(); showTicketListView(); if (document.getElementById('ticket-auto-refresh').checked) startTicketAutoRefresh(); }
     if (target === 'users') loadUsers();
     if (target === 'settings') loadSettings();
     if (target === 'companies') loadCompaniesTab();
@@ -2155,8 +2155,12 @@ function applyBranding(branding) {
         if (logoUrl) { headerLogo.src = logoUrl; headerLogo.style.display = ''; if (headerIcon) headerIcon.style.display = 'none'; }
         else { headerLogo.style.display = 'none'; if (headerIcon) headerIcon.style.display = ''; }
     }
-    if (headerTitle) headerTitle.textContent = nimi;
-    if (headerSubtitle) headerSubtitle.textContent = subtitle || 'Hallintapaneeli';
+    // Kun logo on, näytetään vain "Hallintapaneeli" — logo kertoo yrityksen
+    if (headerTitle) headerTitle.textContent = logoUrl ? 'Hallintapaneeli' : nimi;
+    if (headerSubtitle) {
+        if (logoUrl) { headerSubtitle.style.display = 'none'; }
+        else { headerSubtitle.style.display = ''; headerSubtitle.textContent = subtitle || 'Hallintapaneeli'; }
+    }
 
     // Sivun title
     document.title = nimi;