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/Services/GeocodingService.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace App\Services;
+
+use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Http;
+
+class GeocodingService
+{
+    /** Erlaubte Geocoding-Hosts (SSRF-Schutz) */
+    private const ALLOWED_HOSTS = [
+        'nominatim.openstreetmap.org',
+        'photon.komoot.io',
+    ];
+
+    public function search(string $query): array
+    {
+        $baseUrl = config('nominatim.base_url');
+
+        // SSRF-Schutz: Nur erlaubte Hosts und HTTPS
+        $parsedHost = parse_url($baseUrl, PHP_URL_HOST);
+        if (!$parsedHost || !in_array($parsedHost, self::ALLOWED_HOSTS)) {
+            return [];
+        }
+        if (parse_url($baseUrl, PHP_URL_SCHEME) !== 'https') {
+            return [];
+        }
+
+        $cacheKey = 'geocode:' . hash('sha256', mb_strtolower(trim($query)));
+
+        $cached = Cache::get($cacheKey);
+        if ($cached !== null) {
+            return $cached;
+        }
+
+        $response = Http::withHeaders([
+            'User-Agent' => config('nominatim.user_agent'),
+        ])->timeout(5)->get($baseUrl . '/search', [
+            'q' => $query,
+            'format' => 'json',
+            'addressdetails' => 1,
+            'namedetails' => 1,
+            'limit' => 5,
+            'countrycodes' => 'de,at,ch',
+            'accept-language' => 'de',
+        ]);
+
+        // Fehlerhafte Responses nicht cachen (V20)
+        if ($response->failed()) {
+            return [];
+        }
+
+        $results = collect($response->json())->map(function ($item) {
+            $addr = $item['address'] ?? [];
+
+            // Structured address from components
+            $street = trim(($addr['road'] ?? '') . ' ' . ($addr['house_number'] ?? ''));
+            $postcode = $addr['postcode'] ?? '';
+            $city = $addr['city'] ?? $addr['town'] ?? $addr['village'] ?? $addr['municipality'] ?? '';
+            $name = $item['namedetails']['name'] ?? '';
+
+            // Build formatted address line
+            $parts = array_filter([$street, implode(' ', array_filter([$postcode, $city]))]);
+            $formatted = implode(', ', $parts);
+
+            return [
+                'display_name' => $item['display_name'],
+                'formatted_address' => $formatted ?: $item['display_name'],
+                'name' => $name,
+                'street' => $street,
+                'postcode' => $postcode,
+                'city' => $city,
+                'lat' => $item['lat'],
+                'lon' => $item['lon'],
+                'type' => $item['type'] ?? '',
+            ];
+        })->toArray();
+
+        Cache::put($cacheKey, $results, 86400);
+
+        return $results;
+    }
+}