增加设备私有配置，每台设备可以配置不同的模型和提示词

增加后台管理功能，可以通过后台调整设备私有配置信息

ZhiKongTaiWeb/src/components/NavBar.vue

@@ -0,0 +1,61 @@
+<template>
+  <header class="header">
+    <div class="nav-item" :class="{ active: currentTab === 'home' }" @click="switchTab('home')">小智 AI</div>
+    <nav class="nav">
+      <div class="nav-item" :class="{ active: currentTab === 'device' }" @click="switchTab('device')">
+        <i class="icon-device"></i> 设备管理
+      </div>
+    </nav>
+  </header>
+</template>
+
+<script setup>
+const props = defineProps({
+  currentTab: String
+});
+
+const emit = defineEmits(['tab-change']);
+
+const switchTab = (tab) => {
+  emit('tab-change', tab);
+};
+</script>
+
+<style scoped>
+.header {
+  display: flex;
+  align-items: center;
+  height: 60px;
+  padding: 0;
+  background-color: #001529;
+  color: white;
+  width: 100%;
+  position: relative;
+  left: 0;
+  right: 0;
+}
+
+.nav {
+  display: flex;
+}
+
+.nav-item {
+  display: flex;
+  align-items: center;
+  padding: 0 20px;
+  height: 60px;
+  color: white;
+  text-decoration: none;
+  cursor: pointer;
+  font-weight: bold;
+  transition: background-color 0.3s;
+}
+
+.active {
+  background-color: #4178EE;
+}
+
+.icon-device {
+  margin-right: 8px;
+}
+</style>