admin: Verlauf protokolliert jede versendete E-Mail

Neuer Listener RecordMailActivity am MessageSent-Event erfasst zentral
alle Versandwege (Mailables, Notifications, Fortify, Queue-Mails beim
realen Versand im Worker). Neuer ActivityType "E-Mail" mit Empfänger,
Betreff und Mailable-Klasse in den Metadaten; bekannte Empfänger werden
mit ihrem User verknüpft.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/Enums/ActivityType.php

@@ -20,6 +20,7 @@ enum ActivityType: string
     case TerminationRequest = 'termination_request';
     case NewsletterSubscription = 'newsletter_subscription';
     case SubscriptionChange = 'subscription_change';
+    case MailSent = 'mail_sent';
 
     public function label(): string
     {
@@ -35,6 +36,7 @@ enum ActivityType: string
             self::TerminationRequest => 'Kündigung',
             self::NewsletterSubscription => 'Newsletter',
             self::SubscriptionChange => 'Abo',
+            self::MailSent => 'E-Mail',
         };
     }
 
@@ -50,6 +52,7 @@ enum ActivityType: string
             self::BookingPaid, self::CreditTopup => 'amber',
             self::ContactRequest, self::NewsletterSubscription => 'cyan',
             self::LegalRequest, self::WithdrawalRequest, self::TerminationRequest, self::SubscriptionChange => 'red',
+            self::MailSent => 'purple',
         };
     }
 }

app/Listeners/RecordMailActivity.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Enums\ActivityType;
+use App\Models\User;
+use App\Services\ActivityLog;
+use Illuminate\Mail\Events\MessageSent;
+
+/**
+ * Protokolliert jede tatsächlich versendete E-Mail im Aktivitäts-Verlauf.
+ *
+ * Hängt zentral am MessageSent-Event des Mailers und erfasst damit alle
+ * Versandwege (Mailables, Notifications, Fortify). Bei Queue-Mails feuert
+ * das Event erst beim realen Versand im Worker — der Eintrag entsteht also
+ * zum echten Versandzeitpunkt.
+ *
+ * Die Methode heißt bewusst NICHT `handle`: Laravels Event-Discovery würde
+ * sie sonst zusätzlich zur manuellen Verdrahtung im AppServiceProvider
+ * registrieren (doppelte Einträge).
+ */
+class RecordMailActivity
+{
+    public function __construct(private readonly ActivityLog $activityLog) {}
+
+    public function recordSent(MessageSent $event): void
+    {
+        $recipients = array_values(array_map(
+            fn ($address): string => $address->getAddress(),
+            $event->message->getTo() ?? [],
+        ));
+
+        if ($recipients === []) {
+            return;
+        }
+
+        $subject = (string) $event->message->getSubject();
+        $user = User::query()->whereIn('email', $recipients)->first();
+
+        $this->activityLog->record(
+            ActivityType::MailSent,
+            sprintf(
+                'E-Mail „%s" an %s versendet.',
+                $subject !== '' ? $subject : __('(ohne Betreff)'),
+                implode(', ', $recipients),
+            ),
+            user: $user,
+            actorLabel: $user?->name ?? $recipients[0],
+            meta: array_filter([
+                'to' => $recipients,
+                'subject' => $subject,
+                'mailable' => $event->data['__laravel_mailable'] ?? null,
+                'notification' => $event->data['__laravel_notification'] ?? null,
+            ], fn ($value): bool => $value !== null && $value !== ''),
+        );
+    }
+}

app/Providers/AppServiceProvider.php

@@ -11,6 +11,7 @@ use App\Http\Middleware\LogSlowAdminRequests;
 use App\Http\Middleware\SetEdition;
 use App\Listeners\ActivateUserAfterVerification;
 use App\Listeners\RecordAuthActivity;
+use App\Listeners\RecordMailActivity;
 use App\Listeners\SyncCompanyMembershipsOnLogin;
 use App\Models\AdminPreset;
 use App\Models\Category;
@@ -38,6 +39,7 @@ use Illuminate\Auth\Notifications\ResetPassword;
 use Illuminate\Auth\Notifications\VerifyEmail;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Events\QueryExecuted;
+use Illuminate\Mail\Events\MessageSent;
 use Illuminate\Notifications\Messages\MailMessage;
 use Illuminate\Queue\Events\JobFailed;
 use Illuminate\Support\Facades\DB;
@@ -129,6 +131,9 @@ class AppServiceProvider extends ServiceProvider
         Event::listen(Registered::class, [RecordAuthActivity::class, 'recordRegistered']);
         Event::listen(Login::class, [RecordAuthActivity::class, 'recordLogin']);
 
+        // Jede tatsächlich versendete E-Mail landet ebenfalls im Verlauf.
+        Event::listen(MessageSent::class, [RecordMailActivity::class, 'recordSent']);
+
         // Framework-Auth-Mails (Passwort-Reset, E-Mail-Verifizierung) im
         // pressekonto-CI rendern statt im Laravel-Standard-Markdown-Theme —
         // gleiches Layout wie alle übrigen System-Mails (emails/layout).