Implementación inicial de Nucleo Docs

nuxt4/app/components/auth/BackendVerificationButton.vue

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+<template>
+  <UButton
+    color="orange"
+    size="lg"
+    variant="outline"
+    :loading="loading"
+    @click="handleClick"
+    class="verification-button"
+  >
+    <template #leading>
+      <UIcon name="i-heroicons-server" />
+    </template>
+    Verificación Backend
+  </UButton>
+</template>
+
+<script setup lang="ts">
+const toast = useToast()
+const loading = ref(false)
+
+const handleClick = async () => {
+  loading.value = true
+
+  try {
+    // Consultar el endpoint que lee los headers del servidor
+    const response = await $fetch<{
+      authenticated: boolean
+      user?: {
+        username: string
+        groups: string[]
+      }
+    }>('/api/auth/status')
+
+    if (response.authenticated && response.user) {
+      const groupCount = response.user.groups.length
+      const groupList = response.user.groups.join(', ') || 'Ninguno'
+
+      toast.add({
+        title: 'Verificación Backend',
+        description: `Usuario: ${response.user.username}
+Grupos (${groupCount}): ${groupList}`,
+        color: 'orange',
+        icon: 'i-heroicons-server-stack',
+        timeout: 5000
+      })
+    } else {
+      toast.add({
+        title: 'No Autenticado (Backend)',
+        description: 'No hay sesión activa en el servidor',
+        color: 'warning',
+        icon: 'i-heroicons-exclamation-triangle'
+      })
+    }
+  } catch (error) {
+    toast.add({
+      title: 'Error Backend',
+      description: 'No se pudo verificar en el servidor',
+      color: 'error',
+      icon: 'i-heroicons-x-circle'
+    })
+    console.error('Backend verification error:', error)
+  } finally {
+    loading.value = false
+  }
+}
+</script>
+
+<style scoped>
+.verification-button {
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  box-shadow: 0 4px 6px -1px rgba(249, 115, 22, 0.1), 0 2px 4px -1px rgba(249, 115, 22, 0.06);
+}
+
+.verification-button:hover {
+  transform: translateY(-2px) scale(1.02);
+  box-shadow: 0 10px 15px -3px rgba(249, 115, 22, 0.2), 0 4px 6px -2px rgba(249, 115, 22, 0.1);
+}
+
+.verification-button:active {
+  transform: translateY(0) scale(0.98);
+}
+</style>