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/Notifications/ResetPasswordNotification.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace App\Notifications;
+
+use App\Models\Setting;
+use Illuminate\Auth\Notifications\ResetPassword;
+use Illuminate\Notifications\Messages\MailMessage;
+
+class ResetPasswordNotification extends ResetPassword
+{
+    public function toMail($notifiable): MailMessage
+    {
+        $url = $this->resetUrl($notifiable);
+        $appName = config('app.name');
+        $locale = $notifiable->locale ?? app()->getLocale();
+
+        // Versuche den vom Admin angepassten E-Mail-Text zu laden
+        $customBody = Setting::get('password_reset_email_' . $locale)
+                   ?: Setting::get('password_reset_email_de');
+
+        // Bereinige HTML-Tags für die E-Mail (einfacher Text aus Rich-Text)
+        if ($customBody && strip_tags($customBody) !== '') {
+            $plainBody = strip_tags(str_replace(['<br>', '<br/>', '<br />', '</p>'], "\n", $customBody));
+            $plainBody = str_replace(
+                ['{name}', '{app_name}', '{link}'],
+                [$notifiable->name, $appName, $url],
+                $plainBody
+            );
+
+            $lines = array_filter(array_map('trim', explode("\n", $plainBody)));
+
+            $mail = (new MailMessage)
+                ->subject(__('passwords.reset_subject', ['app' => $appName], $locale));
+
+            foreach ($lines as $line) {
+                $mail->line($line);
+            }
+
+            return $mail->action(__('auth_ui.reset_password_button', [], $locale), $url);
+        }
+
+        // Fallback: Standard-Laravel-Template
+        return (new MailMessage)
+            ->subject(__('passwords.reset_subject', ['app' => $appName], $locale))
+            ->greeting(__('passwords.reset_greeting', ['name' => $notifiable->name], $locale))
+            ->line(__('passwords.reset_line1', [], $locale))
+            ->action(__('auth_ui.reset_password_button', [], $locale), $url)
+            ->line(__('passwords.reset_line2', ['count' => config('auth.passwords.users.expire')], $locale))
+            ->line(__('passwords.reset_line3', [], $locale));
+    }
+}