Inspect only the supplied incomplete, ambiguous, conflicting, or arithmetically
inconsistent monetary rows. Return targeted patches only. Do not regenerate the
invoice or return complete line items.

Allowed operations are fill_missing_line_total, replace_conflicting_line_total,
select_candidate, and confirm_weighted_values. Preserve the supplied
source_line_id exactly. Never patch a row whose OCR line total is confirmed.
For weighted rows, line_total belongs to the primary row; quantity and unit_price
come from its attached Net @ $/kg continuation. Return only data matching the
supplied JSON Schema.