fix(auth,bank): guard switch-auth nav and surface banking retry

AuthForm disables the switch-auth Link while submit is pending so pointer
click and Enter can no longer leave the auth route and lose the draft/error
context. The form restores a true Link after the request settles.

CardsPage/CardPage distinguish cold vs cached banking failures:
- cold card/section errors expose accessible alert + retry
- cached failures keep the previous data and offer a section GET retry
- summary-only/history-only outages do not hide successful sections
- notFound still skips the retry CTA

Tests cover the pending link guard, cold/cached cards error with retry,
summary failure with retry, and the prerequisite card list recovery.

Closes #56, #57

src/pages/card/ui/CardPage/CardPage.view.tsx

@@ -75,6 +75,11 @@ const CardPageView: FC<CardPageViewProps> = (props) => {
 							{t("bank.back")}
 						</Button>
 
+						{!vm.notFound && (
+							<Button onClick={vm.cardRetry} variant="default">
+								{t("bank.retry")}
+							</Button>
+						)}
 					</Group>
 				)}
 				error
@@ -128,18 +133,27 @@ const CardPageView: FC<CardPageViewProps> = (props) => {
 				)}
 
 				{card.archivedAt && <Text>{t("bank.archiveHint")}</Text>}
+
+				{vm.cardError && vm.card && (
+					<BankFeedback
+						cached
+						error={vm.cardError}
+						retry={vm.cardRetry}
+					/>
+				)}
 			</Stack>
 
 			{vm.cardsFeedback && (
 				<BankFeedback
 					{...vm.cardsFeedback}
 					loadingError
+					retry={vm.cardsRetry}
 				/>
 			)}
 
 			<BankPeriodPicker onChange={vm.setPeriod} period={vm.period} />
 
-			<BankSummaryView {...vm.summary} />
+			<BankSummaryView {...vm.summary} retry={vm.summary.refetch} />
 
 			<Group align="end" justify="space-between">
 				<Group gap="xs">
@@ -183,8 +197,6 @@ const CardPageView: FC<CardPageViewProps> = (props) => {
 				<CardHistory history={vm.history} period={vm.period} rows={vm.rows} />
 			</Stack>
 
-			{vm.history.error && !vm.rows && <Text role="alert">{t("bank.error")}</Text>}
-
 			{vm.history.page !== undefined && vm.pageSize !== "all" && (
 				<Group
 					aria-label={t("bank.pagination")}