major update

config/config.php.example

@@ -1,6 +1,7 @@
 <?php
 
 use MintyPHP\Auth;
+use MintyPHP\App\Bootstrap\EnvValidator;
 use MintyPHP\Cache;
 use MintyPHP\DB;
 use MintyPHP\Debugger;
@@ -9,6 +10,8 @@ use MintyPHP\I18n;
 use MintyPHP\Router;
 use MintyPHP\Session;
 
+EnvValidator::validate();
+
 $envString = static function (string $key, string $default): string {
     $value = getenv($key);
     if ($value === false || $value === '') {