Nomad changes

docs/snippets/csharp/api/error_handling_extract.md

@@ -0,0 +1,22 @@
+```csharp title="C#"
+using Kreuzberg;
+
+try
+{
+    var data = File.ReadAllBytes("document.unsupported");
+    var result = KreuzbergLib.ExtractBytesSync(data, "application/x-custom", null);
+    Console.WriteLine(result.Content);
+}
+catch (KreuzbergException ex) when (ex.Code == 1)
+{
+    Console.WriteLine("Validation error: Invalid MIME type");
+}
+catch (KreuzbergException ex) when (ex.Code == 2)
+{
+    Console.WriteLine("Format error: MIME type not supported");
+}
+catch (KreuzbergException ex)
+{
+    Console.WriteLine($"Extraction failed with error {ex.Code}: {ex.Message}");
+}
+```