fix: isolate WeChat runtime delivery path

server/portal-integration-services-bootstrap.mjs

@@ -20,6 +20,7 @@ import {
 export async function bootstrapPortalIntegrationServices({
   pool,
   h5Root,
+  codeRoot = h5Root,
   env = process.env,
   usersRoot,
   wechatMpConfig,
@@ -76,7 +77,9 @@ export async function bootstrapPortalIntegrationServices({
     );
   }
 
-  const wechatMp = await loadWechatMpModuleFn(h5Root);
+  const wechatMpRoot = codeRoot || h5Root;
+  logger.log?.(`[WeChat MP] Loading runtime module from code root: ${wechatMpRoot}`);
+  const wechatMp = await loadWechatMpModuleFn(wechatMpRoot);
   const pageDataDeliveryReviewer =
     wechatMpConfig?.pageDataAiderReviewEnabled === true
       ? createPageDataDeliveryCodeReviewServiceFn({
@@ -122,6 +125,7 @@ export async function bootstrapPortalIntegrationServices({
         tkmindProxy.startSessionForUser(userId, {
           workingDir,
           sessionPolicy,
+          origin: 'wechat',
         }),
       sessionApiFetch: async (
         sessionId,

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

@@ -97,6 +97,7 @@ function createSetup(overrides = {}) {
   const options = {
     pool,
     h5Root: '/app',
+    codeRoot: '/runtime',
     env: {
       H5_SCHEDULE_ENABLED: '1',
       H5_REMINDER_WORKER_ENABLED: '1',
@@ -236,6 +237,10 @@ test('preserves WeChat service configuration and proxy callbacks', async () => {
   );
   const { wechatOptions } = setup.getCaptured();
 
+  assert.deepEqual(
+    setup.calls.find(([kind]) => kind === 'load-wechat'),
+    ['load-wechat', '/runtime'],
+  );
   assert.equal(
     wechatOptions.pageDataFinishGuard,
     setup.options.mindSpacePublicFinish,
@@ -268,6 +273,18 @@ test('preserves WeChat service configuration and proxy callbacks', async () => {
     }),
     { sessionId: 'session-1' },
   );
+  assert.deepEqual(
+    setup.calls.find(([kind]) => kind === 'start-session'),
+    [
+      'start-session',
+      'user-1',
+      {
+        workingDir: '/workspace',
+        sessionPolicy: { sandboxed: true },
+        origin: 'wechat',
+      },
+    ],
+  );
   assert.deepEqual(
     await wechatOptions.sessionApiFetch(
       'session-1',