* fix(salary): require corroboration before accepting a header row
Header-row detection accepted the first row (of the first 10) where any
cell merely contained a company-pattern word - no check that the row
actually looked like a header. A source-citation row above the real
header table (standard in real Danish union/statistics exports, e.g.
"Kilde: ... opdelt efter arbejdsgiver ...") tripped it purely because
"arbejdsgiver" appeared in prose. The real header row then parsed as
data (its "Firma" cell became a bogus company), and every genuine
company silently lost all its salary data - exit 0, no warning.
A candidate row is now only accepted when a second cell also matches a
city/count/index pattern, and a sheet that ends up with zero detected
salary columns prints a warning instead of reporting success silently.
Fixes#414.
* fix(salary): require cross-cell corroboration, fall back for untyped columns
Two edge cases found in review of the corroboration fix:
- Same-cell corroboration wasn't enough: a citation sentence can pack a
count-pattern word into the same sentence as the company-pattern one
("...opdelt efter arbejdsgiver, antal svar 1234"), which still passed
the gate. Corroboration must now come from a different cell.
- The corroboration requirement itself broke sheets whose only real
header has purely untyped salary columns (e.g. "Base pay 2025" /
"Bonus 2025" - neither matches a known city/count/index pattern), so
header detection found nothing at all. Falls back to the original
any-cell-mentions-company rule when the strict pass finds no row in
the first 10.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
