docs: annotate remaining routes layouts and view boundaries

app/pages/invoices/request.vue

@@ -12,6 +12,7 @@ import index from "~/pages/invoices/index.vue";
 var i = defineComponent({
   __name: `request`,
   setup(t) {
+    // 申请入口仍挂载同一个发票页面，避免两份申请逻辑产生不同校验。
     return (t, i) => (openBlock(), createBlock(index));
   },
 });