Nomad changes

docs/snippets/csharp/error_handling.md

@@ -0,0 +1,23 @@
+```csharp title="C#"
+using Kreuzberg;
+
+try
+{
+    var result = KreuzbergLib.ExtractFileSync("missing.pdf");
+    Console.WriteLine(result.Content);
+}
+catch (KreuzbergValidationException ex)
+{
+    Console.Error.WriteLine($"Validation error: {ex.Message}");
+}
+catch (KreuzbergIOException ex)
+{
+    Console.Error.WriteLine($"IO error: {ex.Message}");
+    throw;
+}
+catch (KreuzbergException ex)
+{
+    Console.Error.WriteLine($"Extraction failed: {ex.Message}");
+    throw;
+}
+```