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>

app/Http/Controllers/DashboardController.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Enums\ParticipantStatus;
+use App\Models\Event;
+
+class DashboardController extends Controller
+{
+    public function index()
+    {
+        $user = auth()->user();
+
+        $query = Event::with(['team', 'participants'])
+            ->withCount([
+                'caterings as caterings_yes_count' => fn ($q) => $q->where('status', 'yes'),
+                'timekeepers as timekeepers_yes_count' => fn ($q) => $q->where('status', 'yes'),
+            ])
+            ->published();
+
+        if (! $user->canAccessAdminPanel()) {
+            $query->whereIn('team_id', $user->accessibleTeamIds());
+        }
+
+        // Alle Events für den Kalender
+        $calendarEvents = $query->orderBy('start_at')->get()
+            ->map(fn (Event $e) => [
+                'id' => $e->id,
+                'title' => $e->title,
+                'type' => $e->type->value,
+                'typeLabel' => $e->type->label(),
+                'date' => $e->start_at->format('Y-m-d'),
+                'time' => $e->start_at->format('H:i'),
+                'team' => $e->team->name,
+                'url' => route('events.show', $e),
+                'tl' => [
+                    'y' => $e->participants->where('status', ParticipantStatus::Yes)->count(),
+                    'n' => $e->participants->where('status', ParticipantStatus::No)->count(),
+                    'o' => $e->participants->where('status', ParticipantStatus::Unknown)->count(),
+                ],
+                'minMet' => $e->minimumsStatus(),
+            ]);
+
+        return view('dashboard', compact('calendarEvents'));
+    }
+}