feat: initial commit — asaas-checkout template white-label

Template genérico de checkout com ASAAS, parametrizado via env vars.
Inclui fluxo completo: checkout → pedido → polling → webhook → admin.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

next.config.mjs

@@ -0,0 +1,15 @@
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  output: "standalone",
+  eslint: {
+    ignoreDuringBuilds: true,
+  },
+  typescript: {
+    ignoreBuildErrors: true,
+  },
+  images: {
+    unoptimized: true,
+  },
+}
+
+export default nextConfig