fixup! Add Membership StoreTest

app/Activity.php

@@ -4,12 +4,14 @@ namespace App;
 
 use App\Nami\HasNamiField;
 use Cviebrock\EloquentSluggable\Sluggable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
 class Activity extends Model
 {
 
+    use HasFactory;
     use HasNamiField;
     use Sluggable;