feat(mindspace): add opt-in local analytics

wechat-mp.mjs

@@ -888,6 +888,9 @@ function resolveHtmlPublishArtifacts({
   workingDir,
   publicBaseUrl,
   requestStartedAt,
+  userId = '',
+  sessionId = '',
+  onPageGenerated = null,
 }) {
   materializeMissingPublicHtmlWrites({
     messages: reply?.messages ?? [],
@@ -918,6 +921,9 @@ function resolveHtmlPublishArtifacts({
     recentArtifacts,
     replyText: reply?.text,
   });
+  if (typeof onPageGenerated === 'function' && confirmedArtifacts.length > 0) {
+    void onPageGenerated({ userId, sessionId, artifacts: confirmedArtifacts });
+  }
   return {
     publishedArtifacts,
     expectedArtifacts,
@@ -1406,6 +1412,7 @@ export function createWechatMpService({
   scheduleService = null,
   wechatScheduleLlmConfigService = null,
   llmProviderService = null,
+  onPageGenerated = null,
   applySessionLlmProvider = null,
   refreshSessionSnapshot = null,
   pageDataFinishGuard = null,
@@ -1979,6 +1986,9 @@ export function createWechatMpService({
         workingDir,
         publicBaseUrl: config.publicBaseUrl,
         requestStartedAt,
+        userId: user.userId,
+        sessionId,
+        onPageGenerated,
       });
       const hasValidLinkInReply = await hasAnyValidPublishedHtmlLink(reply?.text, linkExistsForRequest, {
         confirmedArtifacts,
@@ -2135,6 +2145,9 @@ export function createWechatMpService({
           workingDir,
           publicBaseUrl: config.publicBaseUrl,
           requestStartedAt: retryStartedAt,
+          userId: user.userId,
+          sessionId,
+          onPageGenerated,
         });
         const hasValidLinkInReply = await hasAnyValidPublishedHtmlLink(reply?.text, linkExistsForRequest, {
         confirmedArtifacts,