fix: resolve lint errors from phase 32/33/34 execution

Auto-fixed formatting issues and removed unused imports introduced
by background execution agents across currency, i18n, and sharing code.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/client/lib/formatters.ts

@@ -70,7 +70,11 @@ export function formatDualPrice(options: DualPriceOptions): {
 	converted: string;
 } {
 	const locale = options.locale ?? "en";
-	const source = formatPrice(options.sourceCents, options.sourceCurrency, locale);
+	const source = formatPrice(
+		options.sourceCents,
+		options.sourceCurrency,
+		locale,
+	);
 	const converted = `~${formatPrice(options.convertedCents, options.targetCurrency, locale)}`;
 	return { source, converted };
 }