id; return $userId > 0 && get_current_user_id() === $userId; } public function failedAuthorizationMessage(): string { if (!is_user_logged_in()) { return 'You must be logged in to change your profile picture.'; } return 'You can only change your own profile picture.'; } public function rules() { return [ 'id' => ['required', 'integer', 'min:1'], ]; } public function messages() { return [ 'id.required' => 'User ID is required.', 'id.integer' => 'User ID must be a valid integer.', ]; } }