remove codeigniter

app/Models/Homework.php

@@ -10,7 +10,7 @@ class Homework extends BaseModel
     protected $table = 'homework';
 
     /**
-     * CI: useTimestamps = false (even though created_at/updated_at columns exist).
+     * legacy: useTimestamps = false (even though created_at/updated_at columns exist).
      * Keep it OFF to match behavior. If you want Laravel to auto-manage, tell me.
      */
     public $timestamps = false;
@@ -55,7 +55,7 @@ class Homework extends BaseModel
     }
 
     /**
-     * Laravel equivalent of CI getAverageHomeworkScore()
+     * Laravel equivalent of legacy getAverageHomeworkScore()
      * Computes average based only on non-blank numeric scores.
      */
     public static function getAverageHomeworkScore(