feat: 添加环境变量示例，更新样式和依赖，增强全局状态管理

components/PopularInquiries.vue

@@ -8,6 +8,10 @@ const props = defineProps({
   },
 });
 
+const emit = defineEmits({
+  "select-inquiry": (inquiry: string) => true,
+});
+
 const activeTab = ref("0");
 </script>
 
@@ -37,6 +41,7 @@ const activeTab = ref("0");
           size="sm"
           block
           :key="inquiry.question"
+          @click="() => emit('select-inquiry', inquiry.question)"
         >
           {{ inquiry.question }}
         </UButton>