fix(wechat): sync MindSpace pages after MP generation and redirect on 401

WeChat page delivery now triggers syncUserGeneratedPages so write_file HTML
gets page records; public share widget redirects unauthenticated owners to
WeChat OAuth instead of only showing an error.

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

server.mjs

@@ -637,6 +637,7 @@ async function bootstrapUserAuth() {
         apiSecret: API_SECRET,
         mindSpacePages,
         mindSpacePageLiveEdit,
+        syncUserGeneratedPages,
         healthChannelStore,
         healthObservationStore: healthDataRuntime.observationStore,
         healthObservationService: healthDataRuntime.observationService,
@@ -1288,11 +1289,21 @@ async function listSessionPublicHtmlRelativePaths(userId, sessionId, { sinceMs =
     .filter((relativePath) => relativePath?.startsWith('public/') && relativePath.toLowerCase().endsWith('.html')))];
 }
 
-async function syncUserGeneratedPages(userId, { sessionId = null, sinceMs = null } = {}) {
+async function syncUserGeneratedPages(
+  userId,
+  { sessionId = null, sinceMs = null, onlyRelativePaths = null } = {},
+) {
   if (!userId) return;
   // Agent-run/Finish delivery must stay scoped to the current conversation.
   // A stale Page Data page elsewhere in the user's workspace must not turn a
   // successfully completed current task into a failed run.
+  const explicitRelativePaths = Array.isArray(onlyRelativePaths)
+    ? [...new Set(
+        onlyRelativePaths
+          .map((relativePath) => normalizeWorkspaceRelativePath(relativePath))
+          .filter(Boolean),
+      )]
+    : null;
   const discoveredRelativePaths = sessionId
     ? await listSessionPublicHtmlRelativePaths(userId, sessionId, { sinceMs })
     : null;
@@ -1302,6 +1313,7 @@ async function syncUserGeneratedPages(userId, { sessionId = null, sinceMs = null
   // block an unrelated delivery.
   const recentWorkspaceRelativePaths =
     sessionId &&
+    !explicitRelativePaths?.length &&
     !discoveredRelativePaths?.length &&
     mindSpaceWorkspacePublicationDelivery
       ? (
@@ -1312,9 +1324,11 @@ async function syncUserGeneratedPages(userId, { sessionId = null, sinceMs = null
             })
         )?.relativePaths ?? []
       : [];
-  const pageDataRelativePaths = sessionId
-    ? (discoveredRelativePaths?.length ? discoveredRelativePaths : recentWorkspaceRelativePaths)
-    : null;
+  const pageDataRelativePaths = explicitRelativePaths?.length
+    ? explicitRelativePaths
+    : sessionId
+      ? (discoveredRelativePaths?.length ? discoveredRelativePaths : recentWorkspaceRelativePaths)
+      : null;
   if (workspacePageDeliver?.syncAndDeliver) {
     return await workspacePageDeliver.syncAndDeliver(userId, { pageDataRelativePaths });
   }