- Add C WASM scanner emitting structure-of-arrays ops (kinds, starts, lengths, aux, params) - Integrate scan+dispatch in EscapeSequenceParser with async handler resume - Fix CSI fast-path final byte index, ERROR state reporting, and precedingJoinState for REP - Add build pipeline (build_parser_wasm.sh, transition table generator, wasm embed) Co-authored-by: Daniel Imms <Tyriar@users.noreply.github.com>