feat(image): complete reviewed generation delivery

agent-run-gateway.mjs

@@ -864,13 +864,18 @@ export function createAgentRunGateway({
     { routing = null, toolEvidence = null } = {},
   ) {
     assertRequiredImageGenerationCompleted(row, routing, toolEvidence);
+    // `row` was loaded before this worker claimed the run, so its started_at
+    // can still be null. Refresh it before scoping workspace files to the
+    // current execution window.
+    const claimedRun = await getRunById(runId);
+    const runStartedAtMs = claimedRun?.started_at ?? row.started_at ?? null;
     let deliveryResult = null;
     if (typeof syncUserPagesOnSuccess === 'function') {
       deliveryResult = await syncUserPagesOnSuccess({
         userId: row.user_id,
         sessionId,
         runId,
-        runStartedAtMs: row.started_at ?? null,
+        runStartedAtMs,
       });
     }
     const pageDataErrors = Array.isArray(deliveryResult?.pageDataBind?.errors)
@@ -892,17 +897,17 @@ export function createAgentRunGateway({
     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.
+      // Preserve it so a run with no current artifact cannot fall back to
+      // historical workspace pages; `null` is reserved for legacy callers
+      // that provide no scoping information at all.
       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,
+        runStartedAtMs: latest?.started_at ?? runStartedAtMs,
         workspaceRelativePaths,
       });
       if (requiresPageDeliverable && deliverables.pageCount < 1) {