Wechsel Ticketsystem → Projekt-Admin per Einmal-Link, Rückweg-Button

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

public/admin.html

@@ -149,6 +149,7 @@
     <a class="portal-logo" href="/admin.html">Webklar <span style="opacity:.6">Admin</span></a>
     <div class="portal-header-actions">
       <span class="portal-meta" id="admin-meta"></span>
+      <a class="portal-btn-outline" href="https://ticket.webklar.com/tickets">← Ticketsystem</a>
       <button type="button" class="portal-btn-outline" id="logout-btn">Abmelden</button>
     </div>
   </header>

public/login.css

@@ -265,6 +265,13 @@
     border-color 0.25s var(--ease-out);
 }
 
+a.portal-btn-outline {
+  display: inline-flex;
+  align-items: center;
+  line-height: normal;
+  text-decoration: none;
+}
+
 .portal-btn-outline:hover {
   background: #fff;
   color: #1c1c1c;