Improve WeChat MP replies and ship MindSpace/H5 production updates.

Add WeChat service account routing with sync acks, connectivity tests, and context isolation; document deploy runbooks; and bundle related MindSpace, voice, Plaza, and server gateway changes for production rollout.

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

schedule-time.mjs

@@ -0,0 +1,152 @@
+const DEFAULT_TIMEZONE = 'Asia/Shanghai';
+
+function pad2(value) {
+  return String(value).padStart(2, '0');
+}
+
+export function normalizeTimezone(timezone) {
+  return String(timezone || process.env.H5_DEFAULT_TIMEZONE || DEFAULT_TIMEZONE).trim() || DEFAULT_TIMEZONE;
+}
+
+export function getLocalParts(epochMs = Date.now(), timezone = DEFAULT_TIMEZONE) {
+  const formatter = new Intl.DateTimeFormat('en-CA', {
+    timeZone: normalizeTimezone(timezone),
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+    second: '2-digit',
+    hour12: false,
+  });
+  const parts = Object.fromEntries(
+    formatter.formatToParts(new Date(epochMs)).map((part) => [part.type, part.value]),
+  );
+  return {
+    year: Number(parts.year),
+    month: Number(parts.month),
+    day: Number(parts.day),
+    hour: Number(parts.hour === '24' ? 0 : parts.hour),
+    minute: Number(parts.minute),
+    second: Number(parts.second),
+  };
+}
+
+export function localDateKey(epochMs = Date.now(), timezone = DEFAULT_TIMEZONE) {
+  const parts = getLocalParts(epochMs, timezone);
+  return `${parts.year}-${pad2(parts.month)}-${pad2(parts.day)}`;
+}
+
+export function localDateLabel(epochMs = Date.now(), timezone = DEFAULT_TIMEZONE) {
+  const parts = getLocalParts(epochMs, timezone);
+  return `${parts.month}月${parts.day}日`;
+}
+
+export function startOfLocalDay(epochMs = Date.now(), timezone = DEFAULT_TIMEZONE) {
+  const parts = getLocalParts(epochMs, timezone);
+  return zonedTimeToEpochMs(
+    {
+      year: parts.year,
+      month: parts.month,
+      day: parts.day,
+      hour: 0,
+      minute: 0,
+      second: 0,
+    },
+    timezone,
+  );
+}
+
+export function addLocalDays(epochMs, days, timezone = DEFAULT_TIMEZONE) {
+  const parts = getLocalParts(epochMs, timezone);
+  const utc = Date.UTC(parts.year, parts.month - 1, parts.day + Number(days || 0), parts.hour, parts.minute, parts.second);
+  const shifted = new Date(utc);
+  return zonedTimeToEpochMs(
+    {
+      year: shifted.getUTCFullYear(),
+      month: shifted.getUTCMonth() + 1,
+      day: shifted.getUTCDate(),
+      hour: shifted.getUTCHours(),
+      minute: shifted.getUTCMinutes(),
+      second: shifted.getUTCSeconds(),
+    },
+    timezone,
+  );
+}
+
+export function zonedTimeToEpochMs(parts, timezone = DEFAULT_TIMEZONE) {
+  const tz = normalizeTimezone(timezone);
+  let guess = Date.UTC(
+    Number(parts.year),
+    Number(parts.month) - 1,
+    Number(parts.day),
+    Number(parts.hour ?? 0),
+    Number(parts.minute ?? 0),
+    Number(parts.second ?? 0),
+    0,
+  );
+
+  for (let i = 0; i < 3; i += 1) {
+    const actual = getLocalParts(guess, tz);
+    const actualAsUtc = Date.UTC(
+      actual.year,
+      actual.month - 1,
+      actual.day,
+      actual.hour,
+      actual.minute,
+      actual.second,
+      0,
+    );
+    const desiredAsUtc = Date.UTC(
+      Number(parts.year),
+      Number(parts.month) - 1,
+      Number(parts.day),
+      Number(parts.hour ?? 0),
+      Number(parts.minute ?? 0),
+      Number(parts.second ?? 0),
+      0,
+    );
+    const delta = actualAsUtc - desiredAsUtc;
+    if (delta === 0) break;
+    guess -= delta;
+  }
+  return guess;
+}
+
+export function nextDailyRunAt({ hour, minute = 0, timezone = DEFAULT_TIMEZONE, now = Date.now() }) {
+  const tz = normalizeTimezone(timezone);
+  const todayStart = startOfLocalDay(now, tz);
+  const todayParts = getLocalParts(todayStart, tz);
+  let runAt = zonedTimeToEpochMs(
+    {
+      year: todayParts.year,
+      month: todayParts.month,
+      day: todayParts.day,
+      hour: Number(hour),
+      minute: Number(minute),
+      second: 0,
+    },
+    tz,
+  );
+  if (runAt <= now) {
+    const tomorrowStart = addLocalDays(todayStart, 1, tz);
+    const tomorrowParts = getLocalParts(tomorrowStart, tz);
+    runAt = zonedTimeToEpochMs(
+      {
+        year: tomorrowParts.year,
+        month: tomorrowParts.month,
+        day: tomorrowParts.day,
+        hour: Number(hour),
+        minute: Number(minute),
+        second: 0,
+      },
+      tz,
+    );
+  }
+  return runAt;
+}
+
+export function formatLocalTime(epochMs, timezone = DEFAULT_TIMEZONE) {
+  const parts = getLocalParts(epochMs, timezone);
+  return `${pad2(parts.hour)}:${pad2(parts.minute)}`;
+}