feat: 添加 Laravel Reverb 支持，更新 .env.example 文件以配置 WebSocket，增强彩票调度功能，更新 API 路由以支持期号管理与结果发布

database/migrations/2026_05_09_120000_migrate_draw_status_to_domain_dict.php

@@ -0,0 +1,22 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+/**
+ * 将旧版期号状态值迁移为《04-领域字典》约定。
+ */
+return new class extends Migration
+{
+    public function up(): void
+    {
+        DB::table('draws')->where('status', 'pending_review')->update(['status' => 'review']);
+        DB::table('draws')->where('status', 'published')->update(['status' => 'cooldown']);
+    }
+
+    public function down(): void
+    {
+        DB::table('draws')->where('status', 'review')->update(['status' => 'pending_review']);
+        DB::table('draws')->where('status', 'cooldown')->update(['status' => 'published']);
+    }
+};