fix: don't cache waitlist count

apps/web/src/app/page.tsx

@@ -2,6 +2,9 @@ import { Hero } from "@/components/landing/hero";
 import { Header } from "@/components/header";
 import { getWaitlistCount } from "@/lib/waitlist";
 
+// Force dynamic rendering so waitlist count updates in real-time
+export const dynamic = "force-dynamic";
+
 export default async function Home() {
   const signupCount = await getWaitlistCount();