修复：FriendAdded/FriendRemoved 改为 ShouldBroadcastNow

ShouldBroadcast 走队列（异步），不保证及时广播；
ShouldBroadcastNow 不走队列，与 MessageSent 一致，立即推送到 Reverb。
这是大卡弹窗收不到的真实原因。

app/Events/FriendAdded.php

@@ -18,11 +18,11 @@ namespace App\Events;
 use Illuminate\Broadcasting\Channel;
 use Illuminate\Broadcasting\InteractsWithSockets;
 use Illuminate\Broadcasting\PrivateChannel;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Queue\SerializesModels;
 
-class FriendAdded implements ShouldBroadcast
+class FriendAdded implements ShouldBroadcastNow
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 

app/Events/FriendRemoved.php

@@ -18,11 +18,11 @@ namespace App\Events;
 use Illuminate\Broadcasting\Channel;
 use Illuminate\Broadcasting\InteractsWithSockets;
 use Illuminate\Broadcasting\PrivateChannel;
-use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
 use Illuminate\Foundation\Events\Dispatchable;
 use Illuminate\Queue\SerializesModels;
 
-class FriendRemoved implements ShouldBroadcast
+class FriendRemoved implements ShouldBroadcastNow
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;