chore: Add diagnostics tool for confirming visitor IP (#25083)

apps/web/app/api/ip/route.ts

@@ -0,0 +1,7 @@
+import { NextResponse } from "next/server";
+import getIP from "@calcom/lib/getIP";
+
+export async function GET(req: Request) {
+  const requestorIp = getIP(req);
+  return NextResponse.json({ ip: requestorIp });
+}