A source span now supports a decimal ('12 500,00' -> '12500.00') or a date
('14/10/2026' -> '2026-10-14') when the reading is unambiguous. Ambiguous
formats (01/02/2026, 1,234) still go to review. Evidence derivation scans the
source for typed candidates, so the local decision-server model only has to
return values, not UTF-16 offsets.
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