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* fix(bookkeeping): let a rättelseverifikation be stornoed; unblock aged supplier-invoice deletion A user who corrected a booking (storno + rättelse) and then discovered the affärshändelse was already booked by another verifikat had no sanctioned way out: reverseEntry refused source_type 'correction' alongside 'storno', and correctEntry rightly rejects a zeroing rättelse (BFL 5 kap 5 §). The same guard also broke uncategorize-after-rättelse, since bank transactions are relinked to the correction entry. - reverseEntry now blocks only 'storno' (storno-of-a-storno keeps the chain ambiguity problem); a correction entry is a regular live verifikat and can be stornoed, with correction_of_id keeping the chain traceable. - CANNOT_REVERSE_STORNO copy narrowed to stornos + remediation hint. - Supplier-invoice DELETE now allows unbooked, unpaid invoices in registered/approved/overdue: the daily overdue cron flipped unbooked invoices past due_date into a state where deletion was blocked forever. Orphan-safety checks (registration JE, payments, accrual schedule) are what actually protect the books. UI shows the delete button accordingly. - LinkVoucherPicker showed customer-side copy (kundfordran/1510) in supplier-invoice mode; supplier mode now explains the 2440-debit requirement, including why a direct-cost verifikat cannot be linked. Support case 2026-07-26 (marcus@). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(supplier-invoices): review fixes: fail-closed orphan lookups, hide delete when payments loaded - The payment and accrual-schedule lookups in DELETE now fail closed: a lookup error returns 500 instead of reading as "nothing linked" and letting the delete proceed unverified. - The delete button also requires the loaded payment list to be empty, matching the server predicate. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * docs: authorize 'approved' in supplier-invoice delete allow-list (compliance-swarm V2.3) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>