Initial public release

Aurum — a self-hosted personal finance operating system: cash flow,
net worth tracking, budgets, goals, recurring payments, reports,
proactive alerts, and a compound-interest returns calculator, all
bilingual (RU/EN) and mobile-first. Ships as a three-container Docker
Compose stack (Postgres + FastAPI + nginx-served React frontend).

See README.md for setup and CONTRIBUTING.md for development.

frontend/src/components/settings/CurrencyCard.tsx

@@ -0,0 +1,34 @@
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/Card";
+import { Select } from "@/components/ui/Input";
+import { useTranslation } from "@/lib/i18n";
+import { CURRENCIES, getCurrencyLabel } from "@/lib/currency";
+import { useAppSettings, useUpdateAppSettings } from "@/hooks/useSettings";
+
+export function CurrencyCard() {
+  const { t, language } = useTranslation();
+  const { data: settings, isLoading } = useAppSettings();
+  const updateSettings = useUpdateAppSettings();
+
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle>{t("settings.currency")}</CardTitle>
+      </CardHeader>
+      <CardContent className="space-y-2">
+        <Select
+          value={settings?.currency ?? ""}
+          disabled={isLoading || updateSettings.isPending}
+          onChange={(event) => updateSettings.mutate({ currency: event.target.value })}
+          className="max-w-xs"
+        >
+          {CURRENCIES.map((currency) => (
+            <option key={currency.code} value={currency.code}>
+              {getCurrencyLabel(currency.code, language)}
+            </option>
+          ))}
+        </Select>
+        <p className="text-xs text-text-muted">{t("settings.currencyHint")}</p>
+      </CardContent>
+    </Card>
+  );
+}