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/Admin/LocationController.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\Location;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+class LocationController extends Controller
+{
+    public function index(): View
+    {
+        $locations = Location::orderBy('name')->get();
+
+        return view('admin.locations.index', compact('locations'));
+    }
+
+    public function store(Request $request): RedirectResponse
+    {
+        $validated = $request->validate([
+            'name' => ['required', 'string', 'max:255'],
+            'address_text' => ['nullable', 'string', 'max:500'],
+            'location_lat' => ['nullable', 'numeric', 'between:-90,90'],
+            'location_lng' => ['nullable', 'numeric', 'between:-180,180'],
+        ]);
+
+        Location::create($validated);
+
+        return redirect()->route('admin.locations.index')
+            ->with('success', __('admin.location_created'));
+    }
+
+    public function update(Request $request, Location $location): RedirectResponse
+    {
+        $validated = $request->validate([
+            'name' => ['required', 'string', 'max:255'],
+            'address_text' => ['nullable', 'string', 'max:500'],
+            'location_lat' => ['nullable', 'numeric', 'between:-90,90'],
+            'location_lng' => ['nullable', 'numeric', 'between:-180,180'],
+        ]);
+
+        $location->update($validated);
+
+        return redirect()->route('admin.locations.index')
+            ->with('success', __('admin.location_updated'));
+    }
+
+    public function destroy(Location $location): RedirectResponse
+    {
+        $location->delete();
+
+        return redirect()->route('admin.locations.index')
+            ->with('success', __('admin.location_deleted'));
+    }
+}