POST /sessions/{id}/payouts/receipts/import parses the bank workbook (Payouts
sheet), matches deposits to the closing's Transfer payouts by marketplace +
date window + amount (currency-aware: converted deposits match by date only),
and returns a preview; the UI applies selected matches through the existing
PUT so upsert/reprocess semantics stay in one place. Replaces hand-typing
bank dates in the Bank receipts grid.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>