Nomad changes

docs/snippets/c/api/extract_file_async.md

@@ -0,0 +1,30 @@
+```c title="C"
+#include "kreuzberg.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+/* kreuzberg_extract_file schedules work on the global Tokio runtime and
+ * returns once extraction is complete.  For true non-blocking use, call it
+ * from a dedicated OS thread and synchronize via a semaphore or callback. */
+int main(void) {
+    KREUZBERGExtractionConfig *config = kreuzberg_extraction_config_default();
+
+    KREUZBERGExtractionResult *result =
+        kreuzberg_extract_file("document.pdf", NULL, config);
+    if (!result) {
+        fprintf(stderr, "extraction failed (code %d): %s\n",
+                kreuzberg_last_error_code(),
+                kreuzberg_last_error_context());
+        kreuzberg_extraction_config_free(config);
+        return 1;
+    }
+
+    char *content = kreuzberg_extraction_result_content(result);
+    printf("%s\n", content ? content : "(empty)");
+    kreuzberg_free_string(content);
+
+    kreuzberg_extraction_result_free(result);
+    kreuzberg_extraction_config_free(config);
+    return 0;
+}
+```