Nomad changes

docs/snippets/rust/config/pdf_hierarchy_config.md

@@ -0,0 +1,23 @@
+```rust title="Rust"
+use kreuzberg::{extract_file_sync, ExtractionConfig, PdfConfig, HierarchyConfig};
+
+fn main() -> kreuzberg::Result<()> {
+    let config = ExtractionConfig {
+        pdf_options: Some(PdfConfig {
+            hierarchy: Some(HierarchyConfig {
+                enabled: true,
+                detection_threshold: Some(0.75),
+                ocr_coverage_threshold: Some(0.8),
+                min_level: Some(1),
+                max_level: Some(5),
+            }),
+            ..Default::default()
+        }),
+        ..Default::default()
+    };
+
+    let result = extract_file_sync("document.pdf", None::<&str>, &config)?;
+    println!("Hierarchy levels: {}", result.hierarchy.len());
+    Ok(())
+}
+```