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>

session-reconcile.test.mjs

@@ -1,6 +1,10 @@
 import test from 'node:test';
 import assert from 'node:assert/strict';
-import { extensionConfigsMatch, extensionsNeedingRefresh } from './session-reconcile.mjs';
+import {
+  extensionConfigsMatch,
+  extensionsNeedingRefresh,
+  reconcileAgentSession,
+} from './session-reconcile.mjs';
 
 test('extensionConfigsMatch compares available_tools', () => {
   const sessionExt = { name: 'developer', available_tools: ['write', 'edit'] };
@@ -43,3 +47,50 @@ test('extensionsNeedingRefresh adds missing extensions', () => {
   assert.equal(toAdd.length, 1);
   assert.equal(toAdd[0].name, 'summon');
 });
+
+test('reconcileAgentSession tolerates invalid working directory during resume sync', async () => {
+  const calls = [];
+  const apiFetch = async (pathname) => {
+    calls.push(pathname);
+    if (pathname === '/sessions/session-1') {
+      return {
+        ok: true,
+        text: async () => JSON.stringify({ working_dir: '/stale/workspace' }),
+      };
+    }
+    if (pathname === '/agent/update_working_dir') {
+      return {
+        ok: false,
+        status: 400,
+        text: async () => 'Invalid directory path',
+      };
+    }
+    if (pathname === '/sessions/session-1/extensions') {
+      return {
+        ok: true,
+        text: async () => JSON.stringify({ extensions: [] }),
+      };
+    }
+    if (pathname === '/agent/restart') {
+      return {
+        ok: true,
+        text: async () => JSON.stringify({ ok: true }),
+      };
+    }
+    throw new Error(`unexpected path: ${pathname}`);
+  };
+
+  await reconcileAgentSession(apiFetch, 'session-1', {
+    workingDir: '/valid/workspace',
+    sessionPolicy: { extensionOverrides: [] },
+    tolerateInvalidWorkingDir: true,
+  });
+
+  assert.deepEqual(calls, [
+    '/sessions/session-1',
+    '/agent/update_working_dir',
+    '/sessions/session-1/extensions',
+    '/sessions/session-1/extensions',
+    '/agent/restart',
+  ]);
+});