update controllers logic

app/Models/FinalExam.php

@@ -12,7 +12,7 @@ class FinalExam extends BaseModel
      * CI: useTimestamps = false (even though table has created_at/updated_at fields).
      * So we keep timestamps OFF and you can set created_at/updated_at manually if needed.
      */
-    public $timestamps = true;
+    public $timestamps = false;
 
     protected $fillable = [
         'student_id',
@@ -20,6 +20,7 @@ class FinalExam extends BaseModel
         'class_section_id',
         'updated_by',
         'score',
+        'comment',
         'semester',
         'school_year',
         'created_at',