docs: explain configuration inputs and authentication components

app/components/ClientLevelDialog.vue

@@ -1,4 +1,5 @@
 <script>
+/** 会员等级说明弹窗：按打开动作读取 /client_level，显示升级条件与各等级商品折扣。 */
 import "~/assets/styles/ClientLevelDialog.DcYabp-W.css";
 import { toDisplayString } from "vue";
 import { renderList } from "vue";
@@ -93,6 +94,7 @@ var E = {
             V = ref(``),
             H = computed(() => z.value?.levels ?? []),
             U = computed(() => {
+              // 将每个等级的 discount_list 转置为“商品行 × 等级列”，便于并排比较。
               let e = {};
               for (let t of H.value)
                 for (let n of t.discount_list ?? []) {