显示 Debug EML 菜单入口

client/src/layouts/ReservationAppShell.vue

@@ -117,6 +117,11 @@ const navItems = [
     icon: 'pi pi-check-square',
     labelKey: 'nav.taskQueue',
   },
+  {
+    to: '/debug/eml-superagent',
+    icon: 'pi pi-upload',
+    labelKey: 'nav.debugEml',
+  },
 ]
 
 const pageTitle = computed(() => {