update to php 8.5, backup codes, etc.

modified:   Dockerfile
	modified:   composer.json
	modified:   composer.lock
	modified:   config/packages/twig.yaml
	modified:   config/services.yaml
	modified:   docs/Caddyfile
	modified:   docs/compose.yaml
	renamed:    docs/env.example -> docs/example.env
	modified:   public/index.php
	modified:   readme.md
	modified:   src/Command/GenerateBackupCodesCommand.php
	modified:   src/ConfigBag.php
	modified:   src/Data/Payload.php
	modified:   src/Enum/Scope.php
	modified:   src/Listener/AcceptListener.php
	modified:   src/Listener/AllowListener.php
	modified:   src/Listener/InterceptListener.php
	modified:   src/Listener/LoginListener.php
	modified:   src/MonitorCacheKeys.php
	modified:   src/PersistCache.php
	modified:   src/Service/BackupCodeManager.php
	modified:   src/Service/DomainManager.php
	new file:   src/Service/LoginManager.php
	modified:   src/Trait/CookieNameTrait.php
	modified:   src/Trait/GetTotpTrait.php
	modified:   src/Trait/MakeNonceTrait.php
	modified:   src/Trait/StringTrait.php
	modified:   src/Utilities.php
	modified:   templates/_script.html.twig
	modified:   templates/_style.html.twig
	modified:   templates/base.html.twig
	modified:   templates/login.html.twig

src/Trait/StringTrait.php

@@ -5,7 +5,7 @@ namespace App\Trait;
 
 trait StringTrait {
     /* cache keys can safely use alphanumeric, "_", and ".", remove the rest */
-    private const KEY_REGEX = '/[^A-Za-z0-9_.]+/';
+    private const string KEY_REGEX = '/[^A-Za-z0-9_.]+/';
 
     public function makeCacheKey(string $name): string {
         return mb_substr(preg_replace(static::KEY_REGEX, '_', $name), 0, 128);