feat(attachments): refactor attachment management to use attachable pivot table and update related models and tests

app/Domains/Attachable/Models/Concerns/HasAttachments.php

@@ -4,15 +4,21 @@ namespace App\Domains\Attachable\Models\Concerns;
 
 use App\Domains\Attachable\Models\Attachment;
 use Illuminate\Database\Eloquent\Model;
-use Illuminate\Database\Eloquent\Relations\MorphMany;
+use Illuminate\Database\Eloquent\Relations\MorphToMany;
 
 trait HasAttachments
 {
     /**
-     * @return MorphMany<Attachment, Model>
+     * @return MorphToMany<Attachment, Model, $this>
      */
-    public function attachments(): MorphMany
+    public function attachments(): MorphToMany
     {
-        return $this->morphMany(Attachment::class, 'attachable');
+        return $this->morphToMany(
+            Attachment::class,
+            'attachable',
+            'attachable_attachments',
+            'attachable_id',
+            'attachment_id',
+        );
     }
 }