feat: add TSV input and output format support#120
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Add `tsv` to InputFormat and OutputFormat enums so users can use `--input-format tsv` / `-I tsv` and `--output-format tsv` / `-O tsv`. TSV input reuses the CSV reader with tab as delimiter. TSV output uses the same delimited-text path as CSV but with tab as the separator. `--header` is now also allowed with `--output-format tsv`. Closes #97
vmvarela
added
type:feature
- Add 9 integration tests (62–70) covering --input-format tsv, --output-format tsv, -I/-O short flags, TSV roundtrip, CSV→TSV, --header with TSV output, --columns with TSV, and quoted-tab fields - Fix help text: --header now reads '(CSV/TSV output only)' - Fix doc comment and error message: 'non-CSV' → 'non-CSV/TSV'
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Summary
tsvtoInputFormatandOutputFormatenums--input-format tsv/-I tsvreads tab-separated input via the existing CSV reader (trivial: tab delimiter override)--output-format tsv/-O tsvwrites tab-separated output using the same delimited-text path as CSV--headeris now allowed with--output-format tsv(in addition to--csv)--tsv,--json, etc.) unchangedAcceptance Criteria
--input-format tsvreads tab-separated input correctly--tsvoutput flag is unchanged and still works--output-format tsvproduces tab-separated outputCloses #97