Move model observers onto attributes and tidy provider bindings.

Register observers with ObservedBy, bind the comment spam classifier, and keep AppServiceProvider focused on application wiring.

app/Models/HomepageAnnouncement.php

@@ -4,48 +4,75 @@ declare(strict_types=1);
 
 namespace App\Models;
 
+use App\Observers\HomepageAnnouncementObserver;
+use Illuminate\Database\Eloquent\Attributes\ObservedBy;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Illuminate\Support\Carbon;
 
+#[ObservedBy([HomepageAnnouncementObserver::class])]
 class HomepageAnnouncement extends Model
 {
     use SoftDeletes;
 
     public const STATUS_DRAFT = 'draft';
+
     public const STATUS_PUBLISHED = 'published';
+
     public const STATUS_ARCHIVED = 'archived';
 
     public const TYPE_ANNOUNCEMENT = 'announcement';
+
     public const TYPE_LAUNCH = 'launch';
+
     public const TYPE_NEWS = 'news';
+
     public const TYPE_WORLD = 'world';
+
     public const TYPE_EVENT = 'event';
+
     public const TYPE_NOTICE = 'notice';
+
     public const TYPE_MAINTENANCE = 'maintenance';
 
     public const PLACEMENT_HOMEPAGE_AFTER_FEATURED = 'homepage_after_featured';
 
     public const LINK_TYPE_NONE = 'none';
+
     public const LINK_TYPE_CUSTOM_URL = 'custom_url';
+
     public const LINK_TYPE_NEWS = 'news';
+
     public const LINK_TYPE_WORLD = 'world';
+
     public const LINK_TYPE_ARTWORK = 'artwork';
+
     public const LINK_TYPE_COLLECTION = 'collection';
+
     public const LINK_TYPE_GROUP = 'group';
+
     public const LINK_TYPE_PROFILE = 'profile';
+
     public const LINK_TYPE_EXPLORE = 'explore';
+
     public const LINK_TYPE_UPLOAD = 'upload';
 
     public const GRADIENT_NOVA_AURORA = 'nova_aurora';
+
     public const GRADIENT_DEEP_SPACE = 'deep_space';
+
     public const GRADIENT_SUNRISE = 'sunrise';
+
     public const GRADIENT_OCEAN_GLOW = 'ocean_glow';
+
     public const GRADIENT_SPRING_VIBES = 'spring_vibes';
+
     public const GRADIENT_FANTASY_REALMS = 'fantasy_realms';
+
     public const GRADIENT_MINIMAL_LIGHT = 'minimal_light';
+
     public const GRADIENT_DARK_GLASS = 'dark_glass';
 
     protected $table = 'homepage_announcements';
@@ -194,4 +221,4 @@ class HomepageAnnouncement extends Model
     {
         return $this->belongsTo(User::class, 'updated_by');
     }
-}
+}