Add scheduled task automation skill with worker execution pipeline.

Introduce scheduled-task-automation for H5 and WeChat, persist tasks in h5_scheduled_tasks, and run due jobs via a dedicated worker that executes agent tasks and delivers results.

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

wechat/prompts/chat-general.mjs

@@ -4,6 +4,7 @@ import {
   isPageDataIntent,
 } from '../../chat-skills.mjs';
 import { shouldUseScheduleAssistant } from '../../schedule-intent.mjs';
+import { shouldUseScheduledTaskAutomation } from '../../scheduled-task-intent.mjs';
 import { buildCurrentTimeAgentPrefix } from '../../user-memory-profile.mjs';
 import { isPageGenerateText, wantsDocxDownload } from '../intent/patterns.mjs';
 import { buildWechatStandaloneImageInstruction } from '../image-generation-policy.mjs';
@@ -81,6 +82,17 @@ export function buildWechatAgentPrompt(intent, {
         '',
       ].filter(Boolean).join('\n')
     : '';
+  const scheduledTaskAutomationHint = shouldUseScheduledTaskAutomation(agentText)
+    ? [
+        '【定时自动任务要求】这条消息是 Scheduled Automation（到点自动执行并推送结果），不是待办提醒。',
+        '开始前先加载 `scheduled-task-automation` skill，并严格按 skill 边界执行。',
+        '先澄清缺失的执行时间或 taskSpec，再调用 scheduled_task_create / scheduled_task_list / scheduled_task_cancel。',
+        '禁止在当前对话立即执行长任务；工具成功返回后才能确认已设置。',
+        '一次性任务用 runAtLocal；循环任务用 hour/minute/weekday，禁止自行估算 Unix 毫秒。',
+        intent?.msgId ? `调用 scheduled_task_create 时必须传入 sourceMessageId: ${intent.msgId}` : '',
+        '',
+      ].filter(Boolean).join('\n')
+    : '';
   const imageGenerationHint = buildWechatStandaloneImageInstruction(imagePolicy, {
     sourceMessageId: intent?.msgId,
   });
@@ -92,6 +104,7 @@ export function buildWechatAgentPrompt(intent, {
       pageDataRepairHint,
       currentTimeHint,
       scheduleAssistantHint,
+      scheduledTaskAutomationHint,
       imageGenerationHint,
       '【微信服务号语音消息】用户通过语音输入，以下是微信识别结果。',
       '',
@@ -105,6 +118,7 @@ export function buildWechatAgentPrompt(intent, {
       docxDownloadHint,
       currentTimeHint,
       scheduleAssistantHint,
+      scheduledTaskAutomationHint,
       '【微信服务号图片消息】用户发送了图片。',
       '如用户没有明确要求，请先根据图片内容给出简短理解，并询问下一步。',
       '',
@@ -132,6 +146,7 @@ export function buildWechatAgentPrompt(intent, {
     return [
       currentTimeHint,
       scheduleAssistantHint,
+      scheduledTaskAutomationHint,
       '【微信服务号位置消息】用户发送了当前位置。',
       location.label ? `地址：${location.label}` : '',
       location.latitude !== null && location.latitude !== undefined
@@ -150,6 +165,7 @@ export function buildWechatAgentPrompt(intent, {
     return [
       currentTimeHint,
       scheduleAssistantHint,
+      scheduledTaskAutomationHint,
       '【微信服务号链接消息】用户分享了链接。',
       link.title ? `标题：${link.title}` : '',
       link.description ? `描述：${link.description}` : '',
@@ -171,6 +187,7 @@ export function buildWechatAgentPrompt(intent, {
   if (sessionPageContinuationHint) lines.push(sessionPageContinuationHint);
   if (pagePublishHint) lines.push(pagePublishHint);
   if (scheduleAssistantHint) lines.push(scheduleAssistantHint);
+  if (scheduledTaskAutomationHint) lines.push(scheduledTaskAutomationHint);
   if (imageGenerationHint) lines.push(imageGenerationHint);
   lines.push(
     '【微信服务号新消息】请只回答下面这条用户消息，不要主动延续无关的历史话题。',