feat(schedule): 待办提醒推送、行事历仅展示提醒与管理 API

单次提醒 worker 投递、local 时间写入校验、未来 7 天提醒列表与忽略/批量删除；行事历去掉事项重复展示。

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

wechat-mp.mjs

@@ -6,6 +6,7 @@ import { developerToolsFromPolicy } from './capabilities.mjs';
 import { mergeMessageContent } from './message-stream.mjs';
 import { reconcileAgentSession } from './session-reconcile.mjs';
 import { isScheduleIntent, parseScheduleIntent, shouldUseScheduleAssistant } from './schedule-intent.mjs';
+import { renderCurrentTimeAnchor } from './user-memory-profile.mjs';
 import { materializeMissingPublicHtmlWrites } from './mindspace-public-finish-sync.mjs';
 import { PUBLISH_ROOT_DIR } from './user-publish.mjs';
 import { downloadTemporaryMedia, persistWechatImage } from './wechat-media.mjs';
@@ -1079,10 +1080,13 @@ function buildWechatAgentPrompt(intent) {
         '',
       ].join('\n')
     : '';
+  const scheduleTimezone = process.env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai';
   const scheduleAssistantHint = shouldUseScheduleAssistant(intent?.agentText ?? intent?.content)
     ? [
         '【日程技能要求】这条消息涉及待办、提醒或日程。',
         '开始前先加载 `schedule-assistant` skill，并严格按 skill 里的边界执行。',
+        '写入工具时优先使用 startLocal / endLocal / remindLocal（YYYY-MM-DD HH:mm），不要自行估算 Unix 毫秒。',
+        renderCurrentTimeAnchor({ timezone: scheduleTimezone }),
         '只有在 `schedule_create_item` / `schedule_create_reminder` 等工具成功返回后，才能告诉用户“已经设置好了”。',
         intent?.msgId ? `调用 schedule_create_item 时必须传入 sourceMessageId: ${intent.msgId}` : '',
         '',