feat(private): 包场预定天数改用后端动态配置(getPrivateBookingConfig API + index.vue动态读取)

miniprogram/src/pages/comprehensive/private/index.vue

@@ -115,11 +115,15 @@ const selectedCells = ref({})
 const now = ref(dayjs())
 let loadRequestId = 0
 
+const bookingConfig = ref({ member_advance_days: 7, non_member_advance_days: 3 })
+
 const weekDays = ['周日', '周一', '周二', '周三', '周四', '周五', '周六']
 const hasPositiveBalance = computed(() => toAmountNumber(session.member?.balance) > 0)
 const dateOptions = computed(() => {
   const today = dayjs()
-  const dateCount = hasPositiveBalance.value ? 7 : 3
+  const dateCount = hasPositiveBalance.value
+    ? bookingConfig.value.member_advance_days
+    : bookingConfig.value.non_member_advance_days
   return Array.from({ length: dateCount }).map((_, i) => {
     const d = today.add(i, 'day')
     return {
@@ -360,9 +364,15 @@ function normalizeClock(value) {
 
 async function refresh() {
   await session.init()
+  try {
+    bookingConfig.value = await privateBookingApi.getPrivateBookingConfig()
+  } catch {
+    // 获取配置失败时使用默认值 7/3，不阻塞页面
+  }
   if (!hasPositiveBalance.value) {
     const todayStr = dayjs().format('YYYY-MM-DD')
-    const maxDateStr = dayjs().add(2, 'day').format('YYYY-MM-DD')
+    const maxOffset = bookingConfig.value.non_member_advance_days - 1
+    const maxDateStr = dayjs().add(maxOffset, 'day').format('YYYY-MM-DD')
     if (selectedDate.value < todayStr || selectedDate.value > maxDateStr) {
       selectedDate.value = todayStr
     }