Stand: SMTP-Test, Admin-Mail-Tab, Notifiable-Fix, Lazy-Quill

- Fix: Notifiable-Trait zum User-Model hinzugefuegt (behebt notify()-500er)
- Installer: SMTP-Verbindungstest mit EsmtpTransport + Ueberspringen-Link
- Admin: Neuer E-Mail-Tab mit SMTP-Konfiguration + Verbindungstest
- Admin: Lazy Quill-Initialisierung (nur sichtbare Locale wird geladen)
- Uebersetzungen: 17 neue Mail-Keys in allen 6 Sprachen

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

resources/views/components/pwa-install-banner.blade.php

@@ -0,0 +1,129 @@
+{{-- PWA Install Banner (Android + iOS) --}}
+<div id="pwa-install-banner" style="display: none;">
+    <style>
+        #pwa-install-banner {
+            position: fixed;
+            bottom: 0;
+            left: 0;
+            right: 0;
+            background: #1f2937;
+            color: white;
+            padding: 1rem;
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            gap: 1rem;
+            z-index: 9999;
+            box-shadow: 0 -2px 10px rgba(0,0,0,0.15);
+        }
+        #pwa-install-banner .pwa-text {
+            flex: 1;
+            font-size: 0.9rem;
+            line-height: 1.4;
+        }
+        #pwa-install-banner .pwa-text strong {
+            display: block;
+            font-size: 1rem;
+            margin-bottom: 0.2rem;
+        }
+        #pwa-install-banner .pwa-ios-steps {
+            font-size: 0.82rem;
+            margin-top: 0.3rem;
+            color: rgba(255,255,255,0.85);
+        }
+        #pwa-install-banner .pwa-ios-steps .pwa-icon {
+            display: inline-block;
+            vertical-align: middle;
+            font-size: 1.05rem;
+        }
+        #pwa-install-banner button {
+            border: none;
+            padding: 0.6rem 1.2rem;
+            border-radius: 0.4rem;
+            font-size: 0.9rem;
+            cursor: pointer;
+            white-space: nowrap;
+        }
+        #pwa-install-banner .pwa-install-btn {
+            background: white;
+            color: #1f2937;
+            font-weight: 600;
+        }
+        #pwa-install-banner .pwa-dismiss-btn {
+            background: transparent;
+            color: rgba(255,255,255,0.8);
+            padding: 0.6rem;
+            font-size: 1.2rem;
+        }
+    </style>
+
+    <div class="pwa-text">
+        <strong id="pwa-title">{{ __('ui.pwa_install_title') }}</strong>
+        <span id="pwa-desc">{{ __('ui.pwa_install_text') }}</span>
+        <div id="pwa-ios-steps" class="pwa-ios-steps" style="display: none;">
+            {!! app(\App\Services\HtmlSanitizerService::class)->sanitize(__('ui.pwa_ios_steps')) !!}
+        </div>
+    </div>
+    <button class="pwa-install-btn" id="pwa-install-btn">{{ __('ui.pwa_install_btn') }}</button>
+    <button class="pwa-dismiss-btn" id="pwa-dismiss-btn">&times;</button>
+</div>
+
+<script>
+    (function() {
+        let deferredPrompt;
+        const banner = document.getElementById('pwa-install-banner');
+        const installBtn = document.getElementById('pwa-install-btn');
+        const dismissBtn = document.getElementById('pwa-dismiss-btn');
+        const iosSteps = document.getElementById('pwa-ios-steps');
+
+        const dismissed = localStorage.getItem('pwa-install-dismissed');
+        const isStandalone = window.matchMedia('(display-mode: standalone)').matches
+            || window.navigator.standalone === true;
+
+        // Reset nach 30 Tagen
+        if (dismissed && (Date.now() - parseInt(dismissed)) > 30 * 24 * 60 * 60 * 1000) {
+            localStorage.removeItem('pwa-install-dismissed');
+        }
+
+        // Bereits installiert → nichts anzeigen
+        if (isStandalone) return;
+
+        // iOS-Erkennung (iPhone, iPad, iPod)
+        const isIOS = /iPad|iPhone|iPod/.test(navigator.userAgent)
+            || (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1);
+
+        if (isIOS) {
+            // iOS: Manuellen Hinweis zeigen (kein beforeinstallprompt)
+            if (!dismissed) {
+                installBtn.style.display = 'none';
+                iosSteps.style.display = 'block';
+                banner.style.display = 'flex';
+            }
+        } else {
+            // Android/Chrome: beforeinstallprompt abfangen
+            window.addEventListener('beforeinstallprompt', (e) => {
+                e.preventDefault();
+                deferredPrompt = e;
+
+                if (!dismissed) {
+                    banner.style.display = 'flex';
+                }
+            });
+        }
+
+        installBtn.addEventListener('click', async () => {
+            if (!deferredPrompt) return;
+
+            deferredPrompt.prompt();
+            await deferredPrompt.userChoice;
+
+            deferredPrompt = null;
+            banner.style.display = 'none';
+        });
+
+        dismissBtn.addEventListener('click', () => {
+            banner.style.display = 'none';
+            localStorage.setItem('pwa-install-dismissed', Date.now());
+        });
+    })();
+</script>