优化一键测试权重

server/app/dice/model/reward/DiceReward.php

@@ -46,18 +46,19 @@ class DiceReward extends BaseModel
 
     /**
      * 获取奖励对照实例（按档位+方向索引，用于抽奖与权重配比）
+     * 优先从共享缓存读取，保证多进程（如一键测试 worker）与数据库一致
      * @return array{list: array, by_tier_direction: array}
      */
     public static function getCachedInstance(): array
     {
-        if (self::$instance !== null) {
-            return self::$instance;
-        }
         $instance = Cache::get(self::CACHE_KEY_INSTANCE);
         if ($instance !== null && is_array($instance)) {
             self::$instance = $instance;
             return $instance;
         }
+        if (self::$instance !== null) {
+            return self::$instance;
+        }
         self::refreshCache();
         $instance = Cache::get(self::CACHE_KEY_INSTANCE);
         self::$instance = is_array($instance) ? $instance : self::buildEmptyInstance();