Nomad changes

docs/snippets/r/config/ocr_dpi_config.md

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+```r title="R"
+library(kreuzberg)
+
+# Tesseract OCR via the kreuzberg R bindings does not expose a DPI setting in
+# the high-level config; PDF rasterization DPI is determined by the pipeline.
+# This example demonstrates running Tesseract OCR end-to-end on a PDF.
+config <- list(
+  force_ocr = TRUE,
+  ocr = list(backend = "tesseract", language = "eng")
+)
+
+json <- extract_file_sync("document.pdf", "application/pdf", config)
+result <- jsonlite::fromJSON(json, simplifyVector = FALSE)
+
+cat(sprintf("Characters extracted: %d\n", nchar(result$content)))
+```