docs: annotate remaining routes layouts and view boundaries

app/pages/cloud-servers/index.vue

@@ -30,6 +30,7 @@ var m = defineComponent({
           ? Number(m.query.m)
           : void 0,
       );
+    // m 参数非法时只呈现错误；有效时复用 HostList，menu-id 变化通过 key 重建列表状态。
     return (n, a) => {
       let c = message,
         g = button,