fix: ARIA semantics, i18n gaps, dynamic assets, stellar.js dedup (#94…

[GoodnessJohn]

…0 #941 #942 #943)

#941 — VirtualList ARIA list semantics

• Add role="list" + aria-label (ariaLabel prop, falls back to virtualList.listLabel translation) to the scroll container in VirtualList and InfiniteVirtualList
• Add role="listitem", aria-setsize={items.length}, and aria-posinset={index + 1} to every virtualized row
• TransactionList passes a translated ariaLabel describing total count
• perfOverlay gets aria-hidden="true" so it is invisible to AT

#940 — VirtualList empty state and MultiSigTransactions status badges

• Import useTranslation into VirtualList; replace hardcoded 'No items to display.' fallback with t('virtualList.emptyDefault')
• Add virtualList.* keys (emptyDefault, listLabel, transactionListLabel, noTransactions) to all 7 locale files
• Replace MultiSigTransactions static STATUS_BADGE label map with getStatusLabel(status, t) that resolves t('multiSig.status.*') at render time; StatusBadge now calls useTranslation itself
• Add multiSig.status.{pending,submitted,failed,expired,unknown} to all 7 locale files (ar/es/fr/he/pt/zh translated, en authoritative)

#942 — AmountInput dynamic asset list

• Add availableAssets prop (array of {code, issuer?, balance?, name?}) to AmountInput; when supplied, the currency is populated from this list instead of the hardcoded CURRENCIES constant Existing callers that omit availableAssets continue to see the static XLM/USDC/BTC fallback — fully backward compatible CURRENCIES constant retained as documentation; DEFAULT_ASSETS drives the fallback rendering path backend/src/services/stellar.js contains duplicated function bodies from an unresolved merge #943 — backend/src/services/stellar.js merge-conflict deduplication Remove duplicate import { getIssuer } createAccount: remove orphaned const pair / logger.info / prisma.user.upsert blocks; keep withSpan version with correlationId getBalance: remove bare first export; keep withSpan / getCachedBalance / withHorizonRetry / correlationId version getTransactions: remove body-less first export; keep full version with withHorizonRetry and date/type filtering sendPayment: remove first loadAccount, first asset/txBuilder block, raw submitTransaction call, and first prisma.; keep withHorizonRetry / memo / feeBump versions throughout getFeeStats: keep withSpan version; remove orphaned duplicate const blocks and dead second return getNetworkStatus: keep withSpan version; remove orphaned second impl getExchangeRate: keep withHorizonRetry versions; remove bare first set stopHorizonLatencyMonitor: restore missing closing brace node --check passes; all 29 named exports appear exactly once Closes VirtualList empty state and MultiSigTransactions status badges are not localized #940 Closes VirtualList lacks ARIA list semantics for virtualized/windowed content #941 Closes AmountInput's currency selector is a hardcoded list, not the user's actual assets #942 Closes backend/src/services/stellar.js contains duplicated function bodies from an unresolved merge #943

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