snapshot schedule source data

backend/app/Schedule/ScheduleModel.php

@@ -9,7 +9,7 @@ use Illuminate\Database\Eloquent\Model;
 /**
  * @property int $id
  * @property int $user_id
- * @property int $set_id
+ * @property string $set_name
  * @property string $element_kind
  * @property string $start_date
  * @property string $target_date
@@ -22,7 +22,7 @@ use Illuminate\Database\Eloquent\Model;
  */
 #[Fillable([
     'user_id',
-    'set_id',
+    'set_name',
     'element_kind',
     'start_date',
     'target_date',
@@ -40,7 +40,6 @@ class ScheduleModel extends Model
     {
         return [
             'user_id' => 'integer',
-            'set_id' => 'integer',
         ];
     }
 }