Send new artwork uploads through a trust-based review policy.

Require review for untrusted accounts, add admin artwork review APIs, and keep queued or auto-trusted publishes from counting as established history.

app/Notifications/NewArtworkReviewNotification.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Notifications;
+
+use App\Models\Artwork;
+use App\Models\User;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Notifications\Messages\MailMessage;
+use Illuminate\Notifications\Notification;
+
+final class NewArtworkReviewNotification extends Notification implements ShouldQueue
+{
+    use Queueable;
+
+    public function __construct(
+        private readonly Artwork $artwork,
+        private readonly User $uploader,
+        private readonly array $reasons,
+    ) {}
+
+    public function via(object $notifiable): array
+    {
+        return ['mail'];
+    }
+
+    public function toMail(object $notifiable): MailMessage
+    {
+        return (new MailMessage)
+            ->subject('Skinbase: new artwork awaiting review')
+            ->greeting('New artwork review')
+            ->line(sprintf('“%s” by %s is being held before publication.', $this->artwork->title ?: 'Untitled artwork', $this->uploader->username ?: $this->uploader->name))
+            ->line('Reasons: '.implode(', ', $this->reasons))
+            ->action('Open moderation queue', url('/moderation/uploads'))
+            ->line('The artwork is not public until it is approved.');
+    }
+}