fix(page-data): deliver MindSpace workspace URLs instead of /u/.../pages/ routes.

Page Data questionnaires were returning publication slugs to users; password-mode
pages always fell back to /u/ routes. Prefer MindSpace paths at publish time and
rewrite mistaken delivery links in WeChat and Portal chat.

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

wechat/prompts/chat-general.mjs

@@ -1,4 +1,4 @@
-import { buildAutoChatSkillPrefix } from '../../chat-skills.mjs';
+import { buildAutoChatSkillPrefix, isPageDataIntent } from '../../chat-skills.mjs';
 import { shouldUseScheduleAssistant } from '../../schedule-intent.mjs';
 import { buildCurrentTimeAgentPrefix } from '../../user-memory-profile.mjs';
 import { isPageGenerateText, wantsDocxDownload } from '../intent/patterns.mjs';
@@ -31,6 +31,16 @@ export function buildWechatAgentPrompt(intent, { grantedSkills = [] } = {}) {
         '',
       ].join('\n')
     : '';
+  const pageDataCollectHint = isPageDataIntent(agentText)
+    ? [
+        '【Page Data 问卷/数据收集要求】这条消息需要可提交、可持久化、可后台查看的数据页面。',
+        '开始前必须先调用 `load_skill` → `page-data-collect`，并按技能完成：建表 → register dataset → 写 HTML（必须引入 /assets/page-data-client.js）→ private_data_bind_workspace_page。',
+        '禁止 localStorage / 浏览器本地存储 fallback；禁止自建 Express 或独立端口 API。',
+        '交付链接必须使用 bind 返回的 workspaceUrl（/MindSpace/<用户ID>/public/...），禁止给用户 /u/用户名/pages/... 发布路由链接。',
+        '问卷页与后台页必须分别 bind（public insert + password read）；未完成 bind 前不要发送链接或说「已发布/可提交」。',
+        '',
+      ].join('\n')
+    : '';
   const scheduleTimezone = process.env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai';
   const currentTimeHint = buildCurrentTimeAgentPrefix({ timezone: scheduleTimezone });
   const scheduleAssistantHint = shouldUseScheduleAssistant(agentText)
@@ -48,6 +58,7 @@ export function buildWechatAgentPrompt(intent, { grantedSkills = [] } = {}) {
   if (msgType === 'voice') {
     return [
       docxDownloadHint,
+      pageDataCollectHint,
       currentTimeHint,
       scheduleAssistantHint,
       '【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。',
@@ -104,6 +115,7 @@ export function buildWechatAgentPrompt(intent, { grantedSkills = [] } = {}) {
   const content = String(agentText).trim();
   const lines = [currentTimeHint];
   if (docxDownloadHint) lines.push(docxDownloadHint);
+  if (pageDataCollectHint) lines.push(pageDataCollectHint);
   if (pagePublishHint) lines.push(pagePublishHint);
   if (scheduleAssistantHint) lines.push(scheduleAssistantHint);
   lines.push(