feat(reserve): add session/场次 info to success page and usage detail

- reserve-index: pass selected session time to success page via query param
- reserve-success: receive and display session conditionally
- reserve-list: add session field to ReserveRecord model and detail sheet
- 4 of 6 mock records now include session data

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/reserve/reserve-index.vue

@@ -215,8 +215,12 @@ function handleSubmit() {
 
   // Mock 预约成功
   const reserveId = 'YP' + Date.now().toString().slice(-8)
+  // 获取选中场次的时间段
+  const session = selectedSessions.value.find(s => s.id === selectedSession.value)
+  const sessionTime = session ? session.time : ''
+  const sessionParam = sessionTime ? `&session=${encodeURIComponent(sessionTime)}` : ''
   uni.navigateTo({
-    url: `/pages/reserve/reserve-success?reserveId=${reserveId}&date=${selectedDate.value}&scenic=${scenic.value.name}`
+    url: `/pages/reserve/reserve-success?reserveId=${reserveId}&date=${selectedDate.value}&scenic=${encodeURIComponent(scenic.value.name)}${sessionParam}`
   })
 }