Bound delivery backlog processing and document verified production behavior

app/Console/Commands/SyncIllustrationDeliveries.php

@@ -33,7 +33,7 @@ public function handle(): int
             return self::SUCCESS;
         }
         try {
-            $pending = IllustrationPool::pendingDeliveries();
+            $pending = array_slice(IllustrationPool::pendingDeliveries(), 0, 3); // Bound metadata calls below the consumer rate limit.
             if (! $pending) {
                 $this->line('No pending illustration deliveries');
 

docs/maintenance/ILLUSTRATION_DELIVERY.md

@@ -7,3 +7,5 @@ # 插画交付接收
 Resource持有唯一批次状态，FNA不复制完整提示词或私有原稿。Resource未完成的同步回执不影响已有静态图片。新增图片只扩充后续文章的候选池。
 
 回退先停fna-illustration-delivery.timer和service、关闭开关；静态副本和旧配图保留。原同步/静态展示维护见[静态配图](LOCAL_ILLUSTRATIONS.md)。批次验收与具体SHA由Resource发布记录维护。
+
+当前已上线，真实自动回执与既有停用图片的验收差异见[发布记录](/Users/hellcat/Documents/GemCodes/resource.loc/v2/docs/ILLUSTRATION_DELIVERY_RELEASE.md)。