Nomad changes

docs/snippets/php/metadata/language_detection.md

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+```php title="PHP"
+<?php declare(strict_types=1);
+
+use Kreuzberg\Kreuzberg;
+use Kreuzberg\ExtractionConfig;
+use Kreuzberg\LanguageDetectionConfig;
+
+// Configure language detection with confidence threshold
+$langConfig = new LanguageDetectionConfig(
+    enabled: true,
+    minConfidence: 0.7,
+    detectMultiple: false
+);
+
+$config = new ExtractionConfig();
+$config->language_detection = $langConfig;
+
+$result = Kreuzberg::extract_file_sync("document.pdf", null, $config);
+
+// Access detected languages
+if (!empty($result->languages)) {
+    foreach ($result->languages as $lang) {
+        echo "Detected language: " . $lang->code . "\n";
+        if ($lang->confidence !== null) {
+            echo "Confidence: " . $lang->confidence . "\n";
+        }
+    }
+}
+?>
+```