feat: 添加实时广播功能，支持风险预警、玩法切换和赔率更新，增强大厅公共频道的广播能力

app/Services/Draw/LotteryHallRealtimeBroadcaster.php

@@ -2,12 +2,18 @@
 
 namespace App\Services\Draw;
 
+use App\Events\OddsUpdateBroadcast;
+use App\Events\PlayToggleBroadcast;
+use App\Events\RiskSoldOutBroadcast;
+use App\Events\RiskWarningBroadcast;
 use App\Events\DrawCountdownBroadcast;
 use App\Events\DrawStatusChangeBroadcast;
 use App\Events\DrawResultPublishedBroadcast;
 
 /**
- * 对齐界面文档 §2.1：`draw.countdown`、`draw.status_change`、`result.published`（频道 `lottery-hall`）。
+ * 对齐界面文档 §2.1：大厅公共频道广播（`lottery-hall`）。
+ * 包含：draw.countdown、draw.status_change、result.published、
+ *       risk.sold_out、risk.warning、play.toggle、odds.update
  */
 final class LotteryHallRealtimeBroadcaster
 {
@@ -66,6 +72,67 @@ final class LotteryHallRealtimeBroadcaster
         broadcast(new DrawResultPublishedBroadcast($data, (int) floor(microtime(true) * 1000)));
     }
 
+    /** `risk.sold_out` —— 号码赔付池耗尽 */
+    public function notifyRiskSoldOut(int $drawId, string $drawNo, string $normalizedNumber): void
+    {
+        if (! $this->driverSupportsRealtime()) {
+            return;
+        }
+
+        broadcast(new RiskSoldOutBroadcast(
+            $drawId,
+            $drawNo,
+            $normalizedNumber,
+            (int) floor(microtime(true) * 1000),
+        ));
+    }
+
+    /** `risk.warning` —— 号码赔付池占用超 80% 预警 */
+    public function notifyRiskWarning(int $drawId, string $drawNo, string $normalizedNumber, float $usageRatio): void
+    {
+        if (! $this->driverSupportsRealtime()) {
+            return;
+        }
+
+        broadcast(new RiskWarningBroadcast(
+            $drawId,
+            $drawNo,
+            $normalizedNumber,
+            $usageRatio,
+            (int) floor(microtime(true) * 1000),
+        ));
+    }
+
+    /** `play.toggle` —— 玩法开关变更 */
+    public function notifyPlayToggle(string $playCode, bool $enabled, ?string $reason = null): void
+    {
+        if (! $this->driverSupportsRealtime()) {
+            return;
+        }
+
+        broadcast(new PlayToggleBroadcast(
+            $playCode,
+            $enabled,
+            $reason,
+            (int) floor(microtime(true) * 1000),
+        ));
+    }
+
+    /** `odds.update` —— 赔率变更 */
+    public function notifyOddsUpdate(int $versionId, string $versionName, ?array $diff = null): void
+    {
+        if (! $this->driverSupportsRealtime()) {
+            return;
+        }
+
+        broadcast(new OddsUpdateBroadcast(
+            $versionId,
+            $versionName,
+            $diff,
+            (int) floor(microtime(true) * 1000),
+        ));
+    }
+
     private function driverSupportsRealtime(): bool
     {
         $default = config('broadcasting.default');