jellyfin: copy logo link to clipboard on mobile app with toast

WebView doesn't allow opening external browser, so on mobile app
the logo link copies URL to clipboard and shows a toast notification.

static/other/jellyfin.css

@@ -244,6 +244,27 @@ progress[value]::-moz-progress-bar {
   filter: brightness(0) saturate(100%) invert(61%) sepia(52%) saturate(212%) hue-rotate(169deg) brightness(92%) contrast(94%);
 }
 
+/* Toast notification */
+.bocken-toast {
+  position: fixed;
+  bottom: 2rem;
+  left: 50%;
+  transform: translateX(-50%);
+  background: rgba(20, 20, 20, 0.9);
+  color: white;
+  padding: 0.6rem 1.2rem;
+  border-radius: 100px;
+  font-size: 0.85rem;
+  z-index: 9999;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
+  opacity: 1;
+  transition: opacity 400ms;
+}
+.bocken-toast-hide {
+  opacity: 0;
+}
+
 /* ═══════════════════════════════════════════
    VIDEO DETAIL PAGE
    ═══════════════════════════════════════════ */

static/other/jellyfin.js

@@ -143,10 +143,25 @@
     if (!logo || logo.dataset.bockenLinked) return;
     logo.dataset.bockenLinked = '1';
 
+    var isMobileApp = /wv\)|Jellyfin Mobile/.test(navigator.userAgent);
+
     var link = document.createElement('a');
     link.href = 'https://bocken.org';
     link.className = 'bocken-logo-link';
     link.title = 'bocken.org';
+    if (isMobileApp) {
+      link.addEventListener('click', function (e) {
+        e.preventDefault();
+        navigator.clipboard.writeText('https://bocken.org').then(function () {
+          var toast = document.createElement('div');
+          toast.className = 'bocken-toast';
+          toast.textContent = 'Link copied — open in browser';
+          document.body.appendChild(toast);
+          setTimeout(function () { toast.classList.add('bocken-toast-hide'); }, 2000);
+          setTimeout(function () { toast.remove(); }, 2500);
+        });
+      });
+    }
     logo.parentNode.insertBefore(link, logo);
     link.appendChild(logo);
   }