Function from_csv_reader_with_config 

pub fn from_csv_reader_with_config<R: Read>(
    reader: R,
    type_name: &str,
    schema: &[&str],
    config: FromCsvConfig,
) -> Result<Document>

Converts a CSV file to a HEDL Document with custom configuration.

This is the main conversion function that handles CSV parsing with configurable options for delimiters, headers, trimming, and limits.