修改名称，优化

cloudfunctions/cleanExpiredRooms/index.js

@@ -0,0 +1,35 @@
+// 云函数入口文件 - 定时清理过期聚会
+const cloud = require('wx-server-sdk')
+
+cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
+const db = cloud.database()
+const _ = db.command
+
+// 云函数入口函数
+exports.main = async (event, context) => {
+    try {
+        const now = new Date()
+
+        // 删除30天前创建的聚会
+        const thirtyDaysAgo = new Date(now.getTime() - 30 * 24 * 60 * 60 * 1000)
+
+        const result = await db.collection('rooms').where({
+            createdAt: _.lt(thirtyDaysAgo)
+        }).remove()
+
+        console.log(`清理完成，删除了 ${result.stats.removed} 个过期聚会`)
+
+        return {
+            success: true,
+            deleted: result.stats.removed,
+            msg: `清理完成，删除了 ${result.stats.removed} 个过期聚会`
+        }
+    } catch (err) {
+        console.error('清理过期聚会失败:', err)
+        return {
+            success: false,
+            msg: '清理失败',
+            error: err
+        }
+    }
+}

cloudfunctions/cleanExpiredRooms/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "cleanExpiredRooms",
+  "version": "1.0.0",
+  "description": "定时清理过期聚会数据",
+  "main": "index.js",
+  "dependencies": {
+    "wx-server-sdk": "~2.6.3"
+  }
+}

cloudfunctions/createRoom/index.js

@@ -12,10 +12,14 @@ exports.main = async (event, context) => {
     const { userInfo, keywords, requirements, name, meetTime } = event
 
     try {
+        // 计算过期时间（30天后）
+        const expireTime = new Date(Date.now() + 30 * 24 * 60 * 60 * 1000)
+
         const res = await db.collection('rooms').add({
             data: {
                 _openid: openid, // 创建者openid
                 createdAt: db.serverDate(),
+                expireTime: expireTime, // 过期时间
                 status: 'active',
                 name: name || '未命名聚会',
                 meetTime: meetTime || '',

cloudfunctions/joinRoom/index.js

@@ -27,9 +27,17 @@ exports.main = async (event, context) => {
         const members = room.data.members || []
         const isMember = members.some(m => m.openid === openid)
 
-        if (!isMember) {
-            // 加入房间
-            const newMember = {
+        if (isMember) {
+            return { success: true, msg: '已在房间内' }
+        }
+
+        // 检查人数限制（最多8人）
+        if (members.length >= 8) {
+            return { success: false, msg: '房间人数已满（最多8人）' }
+        }
+
+        // 加入房间
+        const newMember = {
                 openid: openid,
                 avatarUrl: userInfo?.avatarUrl || 'https://mmbiz.qpic.cn/mmbiz/icTdbqWNOwNRna42FI242Lcia07jQodd2FJGIYQfG0LAJGFxM4FbnQP6yfMxBgJ0F3YRqJCJ1aPAK2dQagdusBZg/0',
                 nickName: userInfo?.nickName || '微信用户',