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>

data/data.tsx

@@ -0,0 +1,18 @@
+export const labels = {
+  name: "Nome",
+  price: "Preço",
+  type: "Tipo",
+  validity: "Validade",
+}
+
+export const priorities = [
+  { label: "Alta", value: "high" },
+  { label: "Média", value: "medium" },
+  { label: "Baixa", value: "low" },
+]
+
+export const statuses = [
+  { label: "Aberto", value: "open" },
+  { label: "Em andamento", value: "in progress" },
+  { label: "Concluído", value: "completed" },
+]