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* fix(transactions): share bank-sync busy state across surfaces useBankSync() kept busyId/syncingAll/connections as hook-local state, but the header "Synka bank nu" split-button row and the footer "Synka nu" button each call the hook independently: a sync started from one surface left the other enabled and spinner-less, so a second concurrent sync of the same connection could be started. Hoist the state into a module-level store (lib/transactions/ bank-sync-store.ts) consumed via useSyncExternalStore, so every instance shares busy state and the connection list: - both surfaces spin and disable while either one syncs - runFor/syncAll re-check the live snapshot before firing, so a click racing a sync from the other surface is a no-op instead of a second paid PSD2 call - the bank_connections query runs once per company instead of once per surface (first mounted instance claims the fetch; failures release the claim so a later mount retries) - a sync that hits a dead PSD2 session flips the connection to expired on every surface at once, not just the one that ran it Fixes #1162. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(transactions): discard stale connection loads after company switch publishConnections now requires the caller to still own the load claim: a fetch resolving after the active company switched (and re-claimed the slot) no longer clobbers the newer company's published list. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>