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/admin/teams/create.blade.php

@@ -0,0 +1,42 @@
+<x-layouts.admin :title="__('admin.create_team')">
+    <div class="mb-6">
+        <h1 class="text-2xl font-bold">{{ __('admin.new_team') }}</h1>
+    </div>
+
+    <div class="bg-white rounded-lg shadow p-6 max-w-lg">
+        <form method="POST" action="{{ route('admin.teams.store') }}">
+            @csrf
+
+            <div class="mb-4">
+                <label for="name" class="block text-sm font-medium text-gray-700 mb-1">{{ __('admin.team_name') }} *</label>
+                <input type="text" name="name" id="name" value="{{ old('name') }}" required
+                    class="w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-blue-500 @error('name') border-red-500 @enderror">
+                @error('name')
+                    <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
+                @enderror
+            </div>
+
+            <div class="mb-4">
+                <label for="year_group" class="block text-sm font-medium text-gray-700 mb-1">{{ __('admin.year_group') }}</label>
+                <input type="text" name="year_group" id="year_group" value="{{ old('year_group') }}" placeholder="{{ __('admin.year_group_placeholder') }}"
+                    class="w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
+            </div>
+
+            <div class="mb-6">
+                <label class="flex items-center">
+                    <input type="hidden" name="is_active" value="0">
+                    <input type="checkbox" name="is_active" value="1" {{ old('is_active', '1') == '1' ? 'checked' : '' }}
+                        class="rounded border-gray-300 mr-2">
+                    <span class="text-sm text-gray-700">{{ __('admin.team_is_active') }}</span>
+                </label>
+            </div>
+
+            <div class="flex items-center gap-3">
+                <button type="submit" class="bg-blue-600 text-white px-4 py-2 rounded-md hover:bg-blue-700 text-sm font-medium">
+                    {{ __('admin.create_team') }}
+                </button>
+                <a href="{{ route('admin.teams.index') }}" class="text-sm text-gray-600 hover:underline">{{ __('ui.cancel') }}</a>
+            </div>
+        </form>
+    </div>
+</x-layouts.admin>