oh gott was mach ich nur

partials/structure/app_config.php

@@ -1,31 +1,63 @@
 <?php
 // partials/structure/app_config.php
 
-$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
-$host   = $_SERVER['HTTP_HOST'] ?? app_primary_domain();
+// Host-Infos ermitteln (für URLs / Redirects etc.)
+$scheme     = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
+$host       = $_SERVER['HTTP_HOST'] ?? app_primary_domain();
 $requestUri = $_SERVER['REQUEST_URI'] ?? '/';
 
+// -----------------------------------------------
+// USBCheck JavaScript-Konfiguration
+// (für fakecheck.*, header.js, i18n, usw.)
+// -----------------------------------------------
 $usbConfig = [
     'lang'        => $lang ?? 'en',
+
+    // Basis-Pfade
     'assetsBase'  => '/assets',
-    // NEU: Versionierung für JS/CSS aus PHP-Config
+
+    // Versionierung für JS/CSS
+    // → wenn ASSET_VERSION definiert ist, wird sie genutzt
+    // → sonst null (JS-Loader sorgt für ?v= fallback)
     'assetVersion'=> defined('ASSET_VERSION') ? ASSET_VERSION : null,
+
+    // Environment (prod, staging, dev)
     'env'         => $GLOBALS['ENV'] ?? 'prod',
 
-    'domains'   => [
+    // Domains
+    'domains'     => [
         'primaryDomain'   => app_primary_domain(),
         'primaryUrl'      => app_primary_url(),
         'fakecheckDomain' => app_fakecheck_domain(),
         'fakecheckUrl'    => app_fakecheck_url(),
     ],
 
+    // Fakecheck-Tool-Config
     'fakecheck' => [
         'baseUrl'    => $GLOBALS['usb_base_url']  ?? '',
         'apiBaseUrl' => $GLOBALS['usb_api_base']  ?? 'https://api.usbcheck.it',
         'locale'     => $lang ?? 'en',
     ],
+
+    // -----------------------------------------------
+    // i18n: aus fileload.php gefüllt
+    // -----------------------------------------------
+    'i18n' => [
+        // Alle verfügbaren Sprachen (code, label, flag)
+        'available' => $availableLangs ?? [],
+
+        // Aktuelle Sprache als Code (de/en/fr/it …)
+        'current'   => $lang ?? 'en',
+    ],
 ];
+
+// -----------------------------------------------
+// Javascript-Konfiguration in die Seite schreiben
+// -----------------------------------------------
 ?>
 <script>
-    window.usbConfig = <?= json_encode($usbConfig, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) ?>;
+    window.usbConfig = <?= json_encode(
+        $usbConfig,
+        JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_INVALID_UTF8_SUBSTITUTE
+    ) ?>;
 </script>