Expand description
CSV wire format codec for Haystack grids.
This module provides encode-only CSV output (text/csv). Each cell is
Zinc-encoded and then quoted for CSV. Decoding is not supported —
calling CsvCodec::decode_grid returns an error. Nested or complex
kinds (grids, lists, dicts) may not roundtrip through CSV because the
Zinc scalar representation is used verbatim inside each cell.