Fork xmrcheckout for Wownero (WOW)

Minimal changes from upstream xmrcheckout to support Wownero:
- Rate provider: Nonlogs WOW-BTC via Kraken BTC/USD
- Subaddress derivation: Wownero network byte overrides (53/63/54)
- Payment URI scheme: wownero:
- Dockerfile: Wownero binaries from Codeberg
- Display text: Monero→Wownero, XMR→WOW throughout UI
- Default daemon: 192.168.88.235:34568
- Added wownero-logo.svg

File and folder structure kept identical to upstream for easy sync.

ui/components/status-refresh-button.tsx

@@ -0,0 +1,34 @@
+"use client";
+
+import { useRouter } from "next/navigation";
+import { useState } from "react";
+
+type StatusRefreshButtonProps = {
+  label?: string;
+  className?: string;
+};
+
+export default function StatusRefreshButton({
+  label = "Refresh",
+  className = "",
+}: StatusRefreshButtonProps) {
+  const router = useRouter();
+  const [isRefreshing, setIsRefreshing] = useState(false);
+
+  const handleRefresh = () => {
+    setIsRefreshing(true);
+    router.refresh();
+    setTimeout(() => setIsRefreshing(false), 500);
+  };
+
+  return (
+    <button
+      className={`inline-flex items-center justify-center rounded-full border border-stroke bg-white/50 px-3 py-1 text-[0.7rem] font-semibold uppercase tracking-[0.12em] text-ink transition hover:-translate-y-0.5 disabled:cursor-not-allowed disabled:opacity-70 ${className}`}
+      type="button"
+      onClick={handleRefresh}
+      disabled={isRefreshing}
+    >
+      {isRefreshing ? "Refreshing..." : label}
+    </button>
+  );
+}