fix(expenses): review follow-ups from #2333 (#2352)

- The owner's claimant key is trimmed and lower-cased, the same rule the
  payout RPC applies, so "Jakob" and "jakob " are one person with one
  Att göra row and one exact-amount match.
- The inbox pages through every registered claim (fetchAllRows) before
  pairing, so a long backlog can never understate a person's debt.
- A foreign receipt's VAT field is locked at 0 and 0 is what is submitted.
- Transport failures in the one-click and picker confirms show the
  destructive toast instead of failing silently.
- The open-claims flag is set only after the stale-fetch guard, and a
  payout match decrements the inbox count like every other row exit.
- Test: reset the live-link mock before the bank_line junction case.
- Wording: "Återbetalning av utlägg".

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

components/transactions/__tests__/booking-feedback-parity.test.ts

@@ -83,12 +83,13 @@ describe('transactions page booking feedback', () => {
   it('decrements the unbooked count on every path that removes a row', () => {
     // finishBooking, handleTransactionBooked (manual booking dialog / voucher
     // match), the three other single-row exits already on the page, the
-    // duplicate-dialog "Ignorera transaktionen" tail, and
-    // handleDeleteTransaction (deleting a pending row must not leave the
-    // inbox badge stale: the realtime echo is not guaranteed for DELETE).
+    // duplicate-dialog "Ignorera transaktionen" tail, handleDeleteTransaction
+    // (deleting a pending row must not leave the inbox badge stale: the
+    // realtime echo is not guaranteed for DELETE), and applyExpensePayoutBooked
+    // (a transfer booked as the repayment of utlägg leaves the inbox too).
     expect(
       PAGE_SRC.match(/setTotalUncategorizedCount\(\(prev\) => Math\.max\(0, \(prev \?\? 1\) - 1\)\)/g) ?? [],
-    ).toHaveLength(7)
+    ).toHaveLength(8)
   })
 
   it('ships the undo strings it renders in both locales', () => {