release: prepare 0629001 portal updates

user-memory-profile.mjs

@@ -4,6 +4,7 @@ import { resolveUserAddressName } from './user-publish.mjs';
 
 export const USER_MEMORY_PROFILE_FILENAME = '.tkmind-profile.json';
 export const USER_MEMORY_PROFILE_VERSION = 1;
+const DEFAULT_TIMEZONE = 'Asia/Shanghai';
 
 export function buildInitialUserMemoryProfile({
   userId,
@@ -148,14 +149,50 @@ export function renderStoredUserMemoriesForHarness(memories) {
   ].join('\n');
 }
 
+function formatDateParts(now, timezone) {
+  const formatter = new Intl.DateTimeFormat('en-CA', {
+    timeZone: timezone,
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+  });
+  const parts = Object.fromEntries(
+    formatter.formatToParts(new Date(now)).map((part) => [part.type, part.value]),
+  );
+  return {
+    year: parts.year ?? '0000',
+    month: parts.month ?? '01',
+    day: parts.day ?? '01',
+  };
+}
+
+export function renderCurrentTimeAnchor({ now = Date.now(), timezone = DEFAULT_TIMEZONE } = {}) {
+  const { year, month, day } = formatDateParts(now, timezone);
+  const weekday = new Intl.DateTimeFormat('zh-CN', {
+    timeZone: timezone,
+    weekday: 'long',
+  }).format(new Date(now));
+  return [
+    '## TKMind 当前时间基准',
+    '',
+    `- 当前时区：${timezone}`,
+    `- 当前日期：${year}-${month}-${day}（${weekday}）`,
+    '- 回答中涉及“今天 / 明天 / 后天 / 周几”时，必须以上述日期为准继续推算，不要自行假设当前日期。',
+  ].join('\n');
+}
+
 export function buildSessionMemoryEntries({
   workingDir,
   sessionPolicy,
   sandboxConstraints = null,
   userContext = null,
   userMemories = null,
+  now = Date.now(),
 }) {
   const entries = [];
+  const timezone = String(
+    userContext?.timezone ?? process.env.H5_DEFAULT_TIMEZONE ?? DEFAULT_TIMEZONE,
+  ).trim() || DEFAULT_TIMEZONE;
 
   if (sandboxConstraints?.trim()) {
     entries.push({
@@ -172,6 +209,11 @@ export function buildSessionMemoryEntries({
     });
   }
 
+  entries.push({
+    title: 'TKMind 当前时间基准',
+    content: renderCurrentTimeAnchor({ now, timezone }),
+  });
+
   if (!hasMemoryStore(sessionPolicy)) {
     return entries;
   }