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/portal-integration-services-bootstrap.mjs

@@ -51,6 +51,7 @@ export async function bootstrapPortalIntegrationServices({
   apiSecret,
   mindSpacePages,
   mindSpacePageLiveEdit,
+  syncUserGeneratedPages = null,
   logger = console,
   healthChannelStore = null,
   healthObservationStore = null,
@@ -212,6 +213,35 @@ export async function bootstrapPortalIntegrationServices({
         sessionId,
         artifacts = [],
       }) => {
+        const relativePaths = [
+          ...new Set(
+            artifacts
+              .map((artifact) =>
+                String(
+                  artifact?.relativePath ??
+                    artifact?.relative_path ??
+                    '',
+                ).trim(),
+              )
+              .filter(Boolean),
+          ),
+        ];
+        if (
+          typeof syncUserGeneratedPages === 'function' &&
+          userId
+        ) {
+          void syncUserGeneratedPages(userId, {
+            sessionId,
+            sinceMs: Date.now() - 10 * 60 * 1000,
+            onlyRelativePaths:
+              relativePaths.length > 0 ? relativePaths : null,
+          }).catch((error) => {
+            logger.warn?.(
+              '[WeChat MP] page sync after generation failed:',
+              error instanceof Error ? error.message : error,
+            );
+          });
+        }
         for (const artifact of artifacts) {
           const pageOwner =
             (await userAuth

server/portal-integration-services-bootstrap.test.mjs

@@ -129,6 +129,10 @@ function createSetup(overrides = {}) {
     apiSecret: 'secret',
     mindSpacePages: { id: 'pages' },
     mindSpacePageLiveEdit: { id: 'live-edit' },
+    syncUserGeneratedPages(userId, options) {
+      calls.push(['sync-user-pages', userId, options]);
+      return Promise.resolve({ created: 1, updated: 0, skipped: 0 });
+    },
     logger: {
       log(...args) {
         calls.push(['log', ...args]);
@@ -407,6 +411,13 @@ test('preserves generated-page analytics projection', async () => {
       .length,
     1,
   );
+  const syncCall = setup.calls.find(
+    ([name]) => name === 'sync-user-pages',
+  );
+  assert.ok(syncCall);
+  assert.equal(syncCall[1], 'user-1');
+  assert.equal(syncCall[2].sessionId, 'session-1');
+  assert.deepEqual(syncCall[2].onlyRelativePaths, ['public/page.html']);
   const analyticsCall = setup.calls.find(
     ([name]) => name === 'analytics',
   );