Nomad changes

docs/snippets/r/plugins/custom_ocr_backend.md

@@ -0,0 +1,15 @@
+```r
+library(kreuzberg)
+
+# List available OCR backends
+backends <- list_ocr_backends()
+cat("Available backends:", paste(backends, collapse = ", "), "\n")
+
+# List registered post-processors
+processors <- list_post_processors()
+cat("Post-processors:", paste(processors, collapse = ", "), "\n")
+
+# Clear all custom registrations
+clear_post_processors()
+clear_validators()
+```