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/admin.php

@@ -21,6 +21,7 @@ if (file_exists($autoloader)) {
 // Load admin components
 $appConfig = require __DIR__ . '/../admin/config/app.php';
 require_once __DIR__ . '/../admin/src/AdminAuth.php';
+require_once __DIR__ . '/../cms/core/class/RequestLogger.php';
 
 $auth = new AdminAuth($appConfig);
 
@@ -220,22 +221,8 @@ function handleDashboard(AdminAuth $auth, array $config): void
 
     // Load recent request log
     $requestLogFile = $config['request_log'];
-    $recentRequests = [];
-    if (file_exists($requestLogFile)) {
-        $lines = file($requestLogFile);
-        $lines = array_slice($lines, -20);
-        foreach ($lines as $line) {
-            if (preg_match('/^\[([^\]]+)\] \[([^\]]+)\] \[([^\]]+)\] \[([^\]]*)\] \[([^\]]+)\] \[([^\]]*)\] \[([^\]]*)\]$/', trim($line), $m)) {
-                $recentRequests[] = [
-                    'time' => $m[1],
-                    'ip' => $m[2],
-                    'page' => $m[5],
-                    'ua' => $m[6],
-                ];
-            }
-        }
-        $recentRequests = array_reverse($recentRequests);
-    }
+    $requestLogger = new RequestLogger($requestLogFile);
+    $recentRequests = $requestLogger->getLogs(20);
 
     require __DIR__ . '/../admin/templates/layout.php';
 }
@@ -318,10 +305,7 @@ function adminLog(array $config, string $level, string $message): void
         @mkdir($dir, 0755, true);
     }
     $timestamp = date('Y-m-d H:i:s');
-    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'] ?? $_SERVER['HTTP_X_REAL_IP'] ?? $_SERVER['REMOTE_ADDR'] ?? 'cli';
-    if (($commaPos = strpos($ip, ',')) !== false) {
-        $ip = trim(substr($ip, 0, $commaPos));
-    }
+    $ip = RequestLogger::getClientIp();
     @file_put_contents($logFile, "[{$timestamp}] [{$level}] [{$ip}] {$message}\n", FILE_APPEND);
 }
 
@@ -1489,7 +1473,7 @@ function handleLogs(AdminAuth $auth, array $config): void
     if (isset($_GET['clear'])) {
         $target = $activeTab === 'admin' ? $adminLogFile : $requestLogFile;
         @file_put_contents($target, '');
-        $message = $activeTab === 'admin' ? 'Activiteitenlog gewist.' : 'Requestlog gewist.';
+        $message = $activeTab === 'admin' ? 'Activiteiten log gewist.' : 'Requestlog gewist.';
         header('Location: /admin/logs?tab=' . $activeTab);
         exit;
     }