docs: annotate payment, host operations and shared components

app/components/PageInfoNotice.vue

@@ -1,4 +1,5 @@
 <script>
+/** 页面静态说明容器：内容来自默认插槽，使用 note 而非实时警报，避免反复朗读。 */
 import "~/assets/styles/PageInfoNotice._16xRFrB.css";
 import { renderSlot } from "vue";
 import { createBlock } from "vue";