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>

lib/worklist/__tests__/categories.test.ts

@@ -568,7 +568,7 @@ describe('listExpensePayoutsDue', () => {
         oldest_expense_date: '2026-09-02',
       },
       {
-        key: 'owner:Jakob',
+        key: 'owner:jakob',
         employee_id: null,
         claimant_name: 'Jakob',
         liability_account: '2893',

lib/worklist/types.ts

@@ -126,7 +126,7 @@ export type WorklistCategory = (typeof WORKLIST_CATEGORIES)[number]
  * (or claimant_name for the owner, who has no employee row).
  */
 export interface ExpensePayoutDue {
-  /** employee_id, or `owner:<claimant_name>` for claims without one. */
+  /** employee_id, or `owner:<claimant_name trimmed and lower-cased>` for claims without one. */
   key: string
   employee_id: string | null
   claimant_name: string