fix(page-data): scope WeChat delivery verification to newly bound pages

Historical workspace Page Data HTML was failing delivery smoke checks and
blocking new survey links from reaching WeChat users. Add a webhook scenario
test script for 103 regression runs.

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

mindspace-page-data-finish-guard.mjs

@@ -114,10 +114,14 @@ export function buildPageDataDeliveryArtifactsFromBindResult(autoBind, publishDi
       .filter((item) => item?.relativePath && item?.workspaceUrl)
       .map((item) => [item.relativePath, item.workspaceUrl]),
   );
-  return collectPageDataDeliveryArtifacts(publishDir, options).map((artifact) => ({
-    ...artifact,
-    url: boundUrls.get(artifact.relativePath) ?? artifact.url,
-  }));
+  // Only verify/deliver pages bound in this auto-bind pass. Scanning the whole
+  // workspace lets one stale historical Page Data page fail delivery for a new survey.
+  return collectPageDataDeliveryArtifacts(publishDir, options)
+    .filter((artifact) => boundUrls.has(artifact.relativePath))
+    .map((artifact) => ({
+      ...artifact,
+      url: boundUrls.get(artifact.relativePath) ?? artifact.url,
+    }));
 }
 
 export function evaluatePageDataHtmlContent(html, { relativePath = '' } = {}) {