fix tests

app/Models/ClassPreparationLog.php

@@ -2,8 +2,6 @@
 
 namespace App\Models;
 
-use App\Models\BaseModel;
-
 class ClassPreparationLog extends BaseModel
 {
     protected $table = 'class_preparation_log';
@@ -22,7 +20,7 @@ class ClassPreparationLog extends BaseModel
     protected $casts = [
         'class_section_id' => 'integer',
         // If prep_data is JSON in DB, use 'array' (or 'json') cast:
-        'prep_data'        => 'array',
+        'prep_data' => 'array',
     ];
 
     // Optional relationship
@@ -30,4 +28,4 @@ class ClassPreparationLog extends BaseModel
     {
         return $this->belongsTo(ClassSection::class, 'class_section_id');
     }
-}
+}