docs(booking): 更新预约状态和日期回调的注释说明

更新ReserveStatus对象的注释，更清晰地描述各状态含义
添加chooseDay函数的注释说明

 <!--
  * @Date: 2024-01-15 13:35:51
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2026-01-13 14:15:29
+ * @LastEditTime: 2026-01-15 16:47:29
  * @FilePath: /xyxBooking-weapp/src/pages/booking/index.vue
  * @Description: 预约页面
 -->
@@ -143,7 +143,7 @@ const findDatesInfo = (date) => {
 
 /**
  * @description: 预约状态
- * @return {object} {INFINITY: -1, FULL: 0, AVAILABLE: 1, OVERDUE: 'overdue' }
+ * @return {object} {INFINITY: -1 无需预约, FULL: 0 约满, AVAILABLE: 1 可约, OVERDUE: 'overdue' 过期日期 }
  */
 const ReserveStatus = {
   INFINITY: -1, // 无需预约
@@ -219,12 +219,19 @@ const QtyStatus = {
   INFINITY: -1, // 无限制
 }
 
+/**
+ * @description: 点击日期回调
+ * @param {string} date
+ * @return {void}
+ */
 const chooseDay = async (date) => { // 点击日期回调
   if (!date) return;
   const info = findDatesInfo(date);
+  //
   if (info.reserve_full === ReserveStatus.AVAILABLE || info.reserve_full === ReserveStatus.INFINITY) { // 状态 1可约 || -1不限制
     checked_day.value = date; // 当前日期
     checked_day_reserve_full.value = info.reserve_full; // 当前状态
+    // 如果可约，查询时间段信息
     if (info.reserve_full === ReserveStatus.AVAILABLE) {
       // 选择日期后，查询时间段信息
       const { code, data } = await canReserveTimeListAPI({ month_date: checked_day.value});