Update 9.precognition.md

Author: GautierDele

content/4.digging-deeper/9.precognition.md

@@ -39,6 +39,6 @@ Content-Type: application/json
 
 Laravel will execute all middleware and run the form request or validator rules as usual, then immediately return the validation result. In this mode:
 - If the data fails validation, you will receive a 422 Unprocessable Entity with the validation errors.
-- If it passes validation, you will receive a 200 OK response and no database action is taken.
+- If it passes validation, you will receive a 204 No Content response and no database action is taken.
 
 In short, the request is validated but the controller method is never called, allowing you to get “live” validation feedback from the API without performing the actual operation.