fix: qr base64 > qr uri

apps/pay/src/freedom.ts

@@ -25,8 +25,18 @@ export async function getAddressInfoBulk(addresses: string[]): Promise<Record<st
   return res.json();
 }
 
-export function getQrUrl(text: string): string {
-  return `${API}/invoice/qr/${encodeURIComponent(text)}`;
+export async function fetchQrBase64(text: string): Promise<string> {
+  const url = `${API}/invoice/qr/${encodeURIComponent(text)}`;
+  try {
+    const res = await fetch(url);
+    if (!res.ok) return url;
+    const buf = await res.arrayBuffer();
+    const type = res.headers.get("content-type") || "image/png";
+    const b64 = Buffer.from(buf).toString("base64");
+    return `data:${type};base64,${b64}`;
+  } catch {
+    return url;
+  }
 }
 
 export async function getAvailableCoins(): Promise<string[]> {