feat: restructure into XFlow monorepo with Nuxt 4, Modular Onion Monolith, Android client, and Desktop CLI

apps/web/app/middleware/admin.ts

@@ -0,0 +1,15 @@
+export default defineNuxtRouteMiddleware((to, from) => {
+  const token = useCookie('xflow_token')
+  
+  if (!token.value) return navigateTo('/login')
+
+  try {
+    const base64Url = token.value.split('.')[1]
+    const base64 = base64Url.replace(/-/g, '+').replace(/_/g, '/')
+    const payload = JSON.parse(window.atob(base64))
+    
+    if (payload.role !== 'admin') return navigateTo('/')
+  } catch (e) {
+    return navigateTo('/login')
+  }
+})