docs: explain configuration inputs and authentication components

app/components/config/ConfigDiskAdd.vue

@@ -1,4 +1,5 @@
 <script>
+/** 添加磁盘的展示入口；只发出 add 事件，磁盘上限、默认容量和价格由父级配置组件决定。 */
 import "~/assets/styles/ConfigDiskAdd.C92e9ZuF.css";
 import { toDisplayString } from "vue";
 import { createCommentVNode } from "vue";