diff --git a/app/Events/BalanceUpdateBroadcast.php b/app/Events/BalanceUpdateBroadcast.php
index c219caa..ff8bc61 100644
--- a/app/Events/BalanceUpdateBroadcast.php
+++ b/app/Events/BalanceUpdateBroadcast.php
@@ -6,7 +6,7 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /**
  * 界面文档 §2.1：`balance.update` —— 钱包余额变动推送。
@@ -14,10 +14,19 @@ use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
  * 触发时机：转入/转出/下注/派彩等导致余额变动时。
  * 前端处理：更新余额显示 + Toast 提示。
  */
-final class BalanceUpdateBroadcast implements ShouldBroadcastNow
+final class BalanceUpdateBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  int  $playerId  玩家 ID（用于频道隔离）
      * @param  string  $currencyCode  币种代码
diff --git a/app/Events/DrawCountdownBroadcast.php b/app/Events/DrawCountdownBroadcast.php
index e273657..d57d0e1 100644
--- a/app/Events/DrawCountdownBroadcast.php
+++ b/app/Events/DrawCountdownBroadcast.php
@@ -6,13 +6,43 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
-/** 界面文档 §2.1：`draw.countdown` */
-final class DrawCountdownBroadcast implements ShouldBroadcastNow
+/**
+ * 界面文档 §2.1：`draw.countdown`
+ *
+ * 每秒由 `lottery:hall-countdown` 命令派发。使用专用队列 `broadcasts:countdown`
+ * 与低频广播隔离，并配置短超时 + 单次尝试，避免队列积压时广播过期数据。
+ */
+final class DrawCountdownBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /**
+     * 专用倒计时队列，与常规广播队列 `broadcasts` 隔离，
+     * 避免低频事件阻塞高频 countdown 任务。
+     */
+    public string $queue = 'broadcasts:countdown';
+
+    /**
+     * 单次尝试：倒计时数据时效性极高，失败后重试已无意义。
+     */
+    public int $tries = 1;
+
+    /**
+     * 单任务超时 5 秒：广播本身应在 1s 内完成，超时说明 Reverb 连接异常。
+     */
+    public int $timeout = 5;
+
+    /**
+     * 从派发起 5 秒内必须开始执行，否则队列工作者自动丢弃。
+     * 防止队列积压时大量过期 countdown 事件被顺序处理。
+     */
+    public function retryUntil(): \DateTimeInterface
+    {
+        return now()->addSeconds(5);
+    }
+
     /**
      * @param  array<string, mixed>|null  $data  与 GET draw/current 的 data 相同
      */
diff --git a/app/Events/DrawResultPublishedBroadcast.php b/app/Events/DrawResultPublishedBroadcast.php
index 600c427..3460d60 100644
--- a/app/Events/DrawResultPublishedBroadcast.php
+++ b/app/Events/DrawResultPublishedBroadcast.php
@@ -6,13 +6,22 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /** 界面文档 §2.1：`result.published` */
-final class DrawResultPublishedBroadcast implements ShouldBroadcastNow
+final class DrawResultPublishedBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  array<string, mixed>|null  $data  与 GET draw/current 的 data 相同（含 result_items）
      */
diff --git a/app/Events/DrawStatusChangeBroadcast.php b/app/Events/DrawStatusChangeBroadcast.php
index 6f1a92a..50eef9d 100644
--- a/app/Events/DrawStatusChangeBroadcast.php
+++ b/app/Events/DrawStatusChangeBroadcast.php
@@ -6,13 +6,22 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /** 界面文档 §2.1：`draw.status_change` */
-final class DrawStatusChangeBroadcast implements ShouldBroadcastNow
+final class DrawStatusChangeBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  array<string, mixed>|null  $data  与 GET draw/current 的 data 相同
      */
diff --git a/app/Events/JackpotBurstBroadcast.php b/app/Events/JackpotBurstBroadcast.php
index 10405c8..6efe554 100644
--- a/app/Events/JackpotBurstBroadcast.php
+++ b/app/Events/JackpotBurstBroadcast.php
@@ -6,13 +6,22 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /** Jackpot 爆池公共广播：`jackpot.burst` */
-final class JackpotBurstBroadcast implements ShouldBroadcastNow
+final class JackpotBurstBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     public function __construct(
         public readonly int $drawId,
         public readonly string $drawNo,
diff --git a/app/Events/OddsUpdateBroadcast.php b/app/Events/OddsUpdateBroadcast.php
index d0b691c..34b0cb5 100644
--- a/app/Events/OddsUpdateBroadcast.php
+++ b/app/Events/OddsUpdateBroadcast.php
@@ -6,7 +6,7 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /**
  * 界面文档 §2.1：`odds.update` —— 赔率变更推送。
@@ -14,10 +14,19 @@ use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
  * 触发时机：后台发布新赔率版本时。
  * 前端处理：Toast 提示用户赔率已更新，建议重新预览注单。
  */
-final class OddsUpdateBroadcast implements ShouldBroadcastNow
+final class OddsUpdateBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  int  $versionId  新版本 ID
      * @param  string  $versionName  版本名称/描述
diff --git a/app/Events/PlayCatalogUpdatedBroadcast.php b/app/Events/PlayCatalogUpdatedBroadcast.php
index 7fd4c6a..2968e06 100644
--- a/app/Events/PlayCatalogUpdatedBroadcast.php
+++ b/app/Events/PlayCatalogUpdatedBroadcast.php
@@ -6,7 +6,7 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /**
  * 界面文档扩展：`play.catalog_updated` —— 玩法目录/限额/封顶等生效版本变更。
@@ -14,10 +14,19 @@ use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
  * 触发时机：后台发布玩法配置、赔率、风控封顶版本（及同类全量变更）时。
  * 前端处理：重新拉取 `GET /api/v1/play/effective`。
  */
-final class PlayCatalogUpdatedBroadcast implements ShouldBroadcastNow
+final class PlayCatalogUpdatedBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  string  $module  play_config|odds|risk_cap
      * @param  array<string, mixed>|null  $meta
diff --git a/app/Events/PlayToggleBroadcast.php b/app/Events/PlayToggleBroadcast.php
index 5d46aff..36a545f 100644
--- a/app/Events/PlayToggleBroadcast.php
+++ b/app/Events/PlayToggleBroadcast.php
@@ -6,7 +6,7 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /**
  * 界面文档 §2.1：`play.toggle` —— 玩法开关变更推送。
@@ -14,10 +14,19 @@ use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
  * 触发时机：后台开启或关闭某玩法时。
  * 前端处理：玩法列显示/隐藏或置灰/启用。
  */
-final class PlayToggleBroadcast implements ShouldBroadcastNow
+final class PlayToggleBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  string  $playCode  玩法代码（如 straight_4d, box_2d 等）
      * @param  bool  $enabled  是否启用
diff --git a/app/Events/RiskSoldOutBroadcast.php b/app/Events/RiskSoldOutBroadcast.php
index 065c07e..ec68968 100644
--- a/app/Events/RiskSoldOutBroadcast.php
+++ b/app/Events/RiskSoldOutBroadcast.php
@@ -6,7 +6,7 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /**
  * 界面文档 §2.1：`risk.sold_out` —— 号码赔付池耗尽推送。
@@ -14,10 +14,19 @@ use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
  * 触发时机：某号码的风险池额度被完全占用时。
  * 前端处理：该号码的玩法格子标记为售罄（置灰或禁用）。
  */
-final class RiskSoldOutBroadcast implements ShouldBroadcastNow
+final class RiskSoldOutBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  int  $drawId  期号 ID
      * @param  string  $drawNo  期号编号（如 20260101-001）
diff --git a/app/Events/RiskWarningBroadcast.php b/app/Events/RiskWarningBroadcast.php
index 927b437..2124c46 100644
--- a/app/Events/RiskWarningBroadcast.php
+++ b/app/Events/RiskWarningBroadcast.php
@@ -6,7 +6,7 @@ use Illuminate\Broadcasting\Channel;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Broadcasting\InteractsWithSockets;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
 
 /**
  * 界面文档 §2.1：`risk.warning` —— 号码赔付池占用超 80% 预警推送。
@@ -14,10 +14,19 @@ use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
  * 触发时机：某号码的风险池占用比例超过阈值（默认 80%）时。
  * 前端处理：该号码的玩法格子显示预警样式（如黄色边框或图标）。
  */
-final class RiskWarningBroadcast implements ShouldBroadcastNow
+final class RiskWarningBroadcast implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
+    /** 异步广播队列 */
+    public string $queue = 'broadcasts';
+
+    /** 最多重试 3 次 */
+    public int $tries = 3;
+
+    /** 单任务超时 10 秒 */
+    public int $timeout = 10;
+
     /**
      * @param  int  $drawId  期号 ID
      * @param  string  $drawNo  期号编号
diff --git a/database/migrations/2026_06_10_120000_align_postgres_indexes_with_live_schema.php b/database/migrations/2026_06_10_120000_align_postgres_indexes_with_live_schema.php
index 9d37581..9e602cb 100644
--- a/database/migrations/2026_06_10_120000_align_postgres_indexes_with_live_schema.php
+++ b/database/migrations/2026_06_10_120000_align_postgres_indexes_with_live_schema.php
@@ -2,7 +2,6 @@
 
 use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Schema;
 
 return new class extends Migration
@@ -39,10 +38,7 @@ return new class extends Migration
 
     private function hasIndex(string $table, string $indexName): bool
     {
-        return DB::table('pg_indexes')
-            ->where('schemaname', 'public')
-            ->where('tablename', $table)
-            ->where('indexname', $indexName)
-            ->exists();
+        // 使用 Laravel 内置方法，兼容 PostgreSQL 和 SQLite 测试环境
+        return Schema::hasIndex($table, $indexName);
     }
 };