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- Preserve \n between visual lines within cells (instead of joining with space) - Rejoin hyphenated words split across line breaks (e.g. Fuß-\nboden → Fußboden) - Split oversized rows (>1.5× median height) into sub-entries when EN/DE line counts match — deterministic fix for missed Step 4 row boundaries - Frontend: render \n as <br/>, use textarea for multiline editing Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>