feat: 实现挂机修仙、排行榜、大厅重构与全站留言板系统

- (Phase 8) 后台各维度管理与配置
- (Phase 9) 全自动静默挂机修仙升级
- (Phase 9) 四大维度风云排行榜页面
- (Phase 10) 全站留言板与悄悄话私信功能
- 运行 Pint 代码格式化

app/Events/UserLevelUp.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Events;
+
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Broadcasting\PrivateChannel;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class UserLevelUp
+{
+    use Dispatchable, InteractsWithSockets, SerializesModels;
+
+    /**
+     * Create a new event instance.
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Get the channels the event should broadcast on.
+     *
+     * @return array<int, \Illuminate\Broadcasting\Channel>
+     */
+    public function broadcastOn(): array
+    {
+        return [
+            new PrivateChannel('channel-name'),
+        ];
+    }
+}