refactor: 将广播事件改为异步队列并增强索引检查兼容性

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);
     }
 };