Replace remote with local repo

app/api/btcpay/invoice/route.ts

@@ -1,5 +1,6 @@
 import { NextResponse } from "next/server";
 import { createBtcPayInvoice, isBtcPayConfigured } from "@/lib/btcpay";
+import { registerInvoice } from "@/lib/serverLedger";
 
 export async function POST(req: Request) {
   if (!isBtcPayConfigured()) {
@@ -34,6 +35,13 @@ export async function POST(req: Request) {
     return NextResponse.json({ ok: false, error: result.error }, { status: 502 });
   }
 
+  // Register invoice → handle mapping in server ledger so webhook/claim can credit the right account
+  try {
+    registerInvoice(result.invoice.id, handle.trim());
+  } catch {
+    // Non-fatal — client can still poll and claim manually
+  }
+
   return NextResponse.json({
     ok: true,
     invoiceId: result.invoice.id,