Fix newest homepage detection, file creation dates, real IP, and request log visitor type

- Fix detectNewestPage() to search subdirectories recursively and handle language prefixes
- Fix getFileInfo() to preserve frontmatter created date or ctime instead of overwriting with mtime
- Automatically store created date in frontmatter when creating/editing files
- Add RequestLogger::getClientIp() with proxy and Cloudflare header support
- Replace domain column in request log with visitor/bot type badges (Human, AI, Search, Scraper)
- Update 'Activiteitenlog' to 'Activiteiten log' in UI and guide

public/index.php

@@ -103,14 +103,19 @@ $cms = new CodePressCMS($config);
 
 // Log page view (not for media/assets)
 if (!str_starts_with($path, '/-media/') && !str_starts_with($path, '/-assets/')) {
+    if (session_status() === PHP_SESSION_NONE) {
+        @session_start();
+    }
+    $loggedInUser = $_SESSION['admin_user'] ?? 'Gast';
+
     $requestLogFile = dirname(__DIR__) . '/admin/storage/logs/requests.log';
     $logger = new RequestLogger($requestLogFile);
     $logger->log(
         $_GET['page'] ?? $config['default_page'] ?? 'index',
-        $_SERVER['HTTP_X_FORWARDED_FOR'] ?? $_SERVER['HTTP_X_REAL_IP'] ?? $_SERVER['REMOTE_ADDR'] ?? 'cli',
+        RequestLogger::getClientIp(),
         $_SERVER['HTTP_USER_AGENT'] ?? '',
         $_SERVER['HTTP_REFERER'] ?? '',
-        $_SERVER['HTTP_HOST'] ?? '',
+        $loggedInUser,
         $_SERVER['HTTP_ACCEPT_LANGUAGE'] ?? ''
     );
 }