fix(mindspace): fail closed on invalid page data delivery

agent-run-gateway.mjs

@@ -817,12 +817,19 @@ export function createAgentRunGateway({
     let deliverables = null;
     if (requiresPageDeliverable || typeof validateRunDeliverables === 'function') {
       const latest = await getRunById(runId);
+      // `[]` is a strict allowlist meaning no workspace page may be examined.
+      // Static page runs commonly have no Page Data artifact list, so use
+      // `null` to discover the current run's newly synced workspace output.
+      const workspaceRelativePaths = Array.isArray(deliveryResult?.pageDataRelativePaths)
+        && deliveryResult.pageDataRelativePaths.length > 0
+        ? deliveryResult.pageDataRelativePaths
+        : null;
       deliverables = await prepareAndDetectSessionDeliverables({
         pool,
         userId: row.user_id,
         sessionId,
         runStartedAtMs: latest?.started_at ?? row.started_at ?? null,
-        workspaceRelativePaths: deliveryResult?.pageDataRelativePaths ?? [],
+        workspaceRelativePaths,
       });
       if (requiresPageDeliverable && deliverables.pageCount < 1) {
         const error = new Error(