One bank row can now settle several vouchers: journal_entry_id stays NULL and one transaction_voucher_links row per voucher carries a signed allocated_amount slice (sum must equal the row within the link tolerance, each slice bounded by the voucher's net line on the account). linkTransactionToVouchers does the locked transaction UPDATE first and rolls back on a failed junction insert; unlink and the re-booking guards understand junction-only rows; a storno of one of the N vouchers releases the row when the remaining slices no longer sum to its amount. The worksheet's right pane becomes multi-select when exactly one bank row is picked (Koppla only at difference 0); the v1/dashboard pair schemas accept allocations; the MCP reconcile resolver and executor carry 1:N pairs; skattekonto keeps single-pointer semantics. Closes#1553
When the worksheet selection (N bank rows vs one verifikat) misses by a
few kronor, 'Bokför mellanskillnaden som Bankavgift / Räntekostnad /
Ränteintäkt / Öresavrundning och koppla' books the remainder on
6570 / 8410 / 8310 / 3740 against the bank account, links the rows to the
main verifikat and anchors the residual verifikat through
transaction_voucher_links. Bank accounts only (Skatteverket posts ränta
and avgifter as rows of their own), capped at 5 000 kr, direction-checked
against the kind; links are made first and undone if the booking is
refused. Dashboard + v1 doors (transactions:write, Idempotency-Key,
dry run), API skill regenerated.
The bridge now treats transaction_voucher_links as links on both sides:
migration 20260824190000 re-creates get_unlinked_gl_lines and
get_account_gl_lines_for_matching to count junction-linked verifikat as
matched (pg-real test), and the TS engine + items do the same for the
transactions. This also stops bulk-booked samlingsverifikat from
polluting the open buckets. 'Koppla bort' drops the junction rows too.
Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>