fix(scheduled-task): enable worker by default and add WeChat preflight

Scheduled automations were saved but never executed because the worker
required an explicit env flag. Follow H5_REMINDER_WORKER_ENABLED when unset,
add WeChat preflight to write tasks deterministically, and surface worker
warnings on create.

Co-authored-by: Cursor <cursoragent@cursor.com>

wechat/handlers/scheduled-task.mjs

@@ -0,0 +1,88 @@
+import {
+  buildScheduledTaskCreatePayload,
+  formatScheduledTaskClarification,
+  formatScheduledTaskCreateReply,
+  formatScheduledTaskListReply,
+  isScheduledTaskIntent,
+  parseScheduledTaskIntent,
+} from '../../scheduled-task-intent.mjs';
+import {
+  isScheduledTaskWorkerEnabled,
+  scheduledTaskWorkerDisabledMessage,
+} from '../../scheduled-task-worker-config.mjs';
+
+const WEEKDAY_NAMES = ['周日', '周一', '周二', '周三', '周四', '周五', '周六'];
+
+export async function handleWechatScheduledTaskIntent({
+  intent,
+  user,
+  scheduledTaskService,
+  env = process.env,
+  logger = console,
+}) {
+  if (!scheduledTaskService) return null;
+
+  const timezone = env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai';
+  const taskIntent = parseScheduledTaskIntent(intent.agentText, {
+    timezone,
+  });
+  if (!isScheduledTaskIntent(taskIntent)) return null;
+
+  try {
+    if (taskIntent.action === 'list_scheduled_tasks') {
+      const tasks = await scheduledTaskService.listTasks({
+        userId: user.userId,
+        status: 'active',
+        limit: 20,
+      });
+      return formatScheduledTaskListReply(tasks);
+    }
+
+    if (taskIntent.action === 'cancel_scheduled_task') {
+      const titleMatch = String(intent.agentText ?? '')
+        .replace(/(?:取消|停止|关闭|删除|我的|定时|自动|任务)/gu, ' ')
+        .trim();
+      if (!titleMatch) {
+        return '请告诉我要取消哪一条定时任务，或提供任务名称关键词。';
+      }
+      const task = await scheduledTaskService.cancelTask({
+        userId: user.userId,
+        titleMatch,
+      });
+      return `已取消定时任务：${task.title}`;
+    }
+
+    if (taskIntent.action === 'create_scheduled_task') {
+      if (taskIntent.needsClarification?.length) {
+        return formatScheduledTaskClarification(taskIntent);
+      }
+      const payload = buildScheduledTaskCreatePayload(taskIntent, {
+        userId: user.userId,
+        sourceChannel: 'wechat',
+        sourceMessageId: intent.msgId || null,
+        sourceText: intent.agentText,
+        timezone,
+      });
+      const task = await scheduledTaskService.createTask(payload);
+      const workerWarning = isScheduledTaskWorkerEnabled(env)
+        ? null
+        : scheduledTaskWorkerDisabledMessage(env);
+      let reply = formatScheduledTaskCreateReply(task, { workerWarning });
+      if (task.recurrence === 'weekly' && task.weekday != null) {
+        reply = reply.replace(
+          /执行时间：/,
+          `执行时间：${WEEKDAY_NAMES[Number(task.weekday)] ?? ''} `,
+        );
+      }
+      return reply;
+    }
+  } catch (err) {
+    logger.warn?.(
+      '[wechat-scheduled-task] preflight failed:',
+      err instanceof Error ? err.message : err,
+    );
+    return `定时任务设置失败：${err instanceof Error ? err.message : String(err)}`;
+  }
+
+  return null;
+}

wechat/handlers/scheduled-task.test.mjs

@@ -0,0 +1,86 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { handleWechatScheduledTaskIntent } from './scheduled-task.mjs';
+
+test('handleWechatScheduledTaskIntent creates daily automation task', async () => {
+  const created = [];
+  const reply = await handleWechatScheduledTaskIntent({
+    intent: {
+      msgType: 'text',
+      agentText: '每天6点帮我做今日新闻页面',
+      msgId: 'msg-1',
+    },
+    user: { userId: 'user-1' },
+    scheduledTaskService: {
+      async createTask(input) {
+        created.push(input);
+        return {
+          ...input,
+          id: 'task-1',
+          nextRunAt: Date.now() + 3600_000,
+        };
+      },
+    },
+    env: { H5_SCHEDULED_TASK_WORKER_ENABLED: '1' },
+  });
+
+  assert.equal(created.length, 1);
+  assert.equal(created[0].hour, 6);
+  assert.match(created[0].taskSpec, /今日新闻页面/u);
+  assert.match(reply, /已设置每天定时任务/u);
+});
+
+test('handleWechatScheduledTaskIntent warns when worker disabled', async () => {
+  const reply = await handleWechatScheduledTaskIntent({
+    intent: {
+      msgType: 'text',
+      agentText: '每天6点帮我做今日新闻页面',
+      msgId: 'msg-1',
+    },
+    user: { userId: 'user-1' },
+    scheduledTaskService: {
+      async createTask(input) {
+        return { ...input, id: 'task-1', nextRunAt: Date.now() + 3600_000 };
+      },
+    },
+    env: { H5_SCHEDULED_TASK_WORKER_ENABLED: '0', H5_REMINDER_WORKER_ENABLED: '0' },
+  });
+
+  assert.match(reply, /⚠️/u);
+  assert.match(reply, /未开启定时自动执行 Worker/u);
+});
+
+test('handleWechatScheduledTaskIntent returns clarification for incomplete request', async () => {
+  const reply = await handleWechatScheduledTaskIntent({
+    intent: {
+      msgType: 'text',
+      agentText: '帮我设一个定时自动任务',
+      msgId: 'msg-1',
+    },
+    user: { userId: 'user-1' },
+    scheduledTaskService: {
+      async createTask() {
+        throw new Error('should not create');
+      },
+    },
+  });
+
+  assert.match(reply, /执行时间和任务内容/u);
+});
+
+test('handleWechatScheduledTaskIntent ignores non automation text', async () => {
+  const reply = await handleWechatScheduledTaskIntent({
+    intent: {
+      msgType: 'text',
+      agentText: '明天下午三点提醒我开会',
+      msgId: 'msg-1',
+    },
+    user: { userId: 'user-1' },
+    scheduledTaskService: {
+      async createTask() {
+        throw new Error('should not create');
+      },
+    },
+  });
+  assert.equal(reply, null);
+});