feat(cloud): 实现微信云函数 - 订阅管理与每日运势推送

- subscribe: 用户订阅/取消订阅/查询订阅状态
- daily-push: 定时查询订阅用户、生成运势、发送订阅消息
- push-test: 推送调试云函数
- 定时触发器配置，每日 7:00/12:00/18:00 推送

everything-is-suitable-uniapp/cloudfunctions/updatePushTime/index.js

@@ -0,0 +1,37 @@
+// 云函数：updatePushTime
+// 更新用户推送时间
+const cloud = require('wx-server-sdk')
+cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
+const db = cloud.database()
+
+exports.main = async (event, context) => {
+  const { pushTime } = event
+  const { OPENID } = cloud.getWXContext()
+
+  // 校验 pushTime 格式 (HH:mm)
+  if (!pushTime || !/^([01]\d|2[0-3]):([03]0)$/.test(pushTime)) {
+    return { success: false, error: '推送时间格式无效，需为 HH:mm 格式，分钟为 00 或 30' }
+  }
+
+  try {
+    const existing = await db.collection('subscriptions').where({
+      openid: OPENID,
+    }).get()
+
+    if (existing.data.length === 0) {
+      return { success: false, error: '未找到订阅记录' }
+    }
+
+    await db.collection('subscriptions').doc(existing.data[0]._id).update({
+      data: {
+        pushTime,
+        updatedAt: db.serverDate(),
+      },
+    })
+
+    return { success: true }
+  } catch (err) {
+    console.error('[updatePushTime] Error:', err)
+    return { success: false, error: err.message }
+  }
+}

everything-is-suitable-uniapp/cloudfunctions/updatePushTime/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "updatePushTime",
+  "version": "1.0.0",
+  "description": "更新用户推送时间配置",
+  "main": "index.js",
+  "dependencies": {
+    "wx-server-sdk": "latest"
+  }
+}