优化：禁言提示显示操作者 + 被禁言发言改用持久提示

- UserMuted 事件增加 operator 字段，禁言通知显示管理员名字
- 输入框 placeholder 显示操作者名字
- 被禁言用户发言时改为在包厢窗口显示红色持久提示（替代 alert 弹窗）

app/Events/UserMuted.php

@@ -32,6 +32,7 @@ class UserMuted implements ShouldBroadcast
         public readonly string $username,
         public readonly int $muteTime,
         public readonly string $message = '',
+        public readonly string $operator = '',
     ) {}
 
     /**
@@ -54,12 +55,13 @@ class UserMuted implements ShouldBroadcast
     public function broadcastWith(): array
     {
         $statusMessage = $this->message ?: ($this->muteTime > 0
-            ? "用户 [{$this->username}] 已被禁言 {$this->muteTime} 分钟。"
+            ? "管理员 [{$this->operator}] 已将 [{$this->username}] 禁言 {$this->muteTime} 分钟。"
             : "用户 [{$this->username}] 已被解除禁言。");
 
         return [
             'username' => $this->username,
             'mute_time' => $this->muteTime,
+            'operator' => $this->operator,
             'message' => $statusMessage,
         ];
     }

app/Http/Controllers/AdminCommandController.php

@@ -178,7 +178,12 @@ class AdminCommandController extends Controller
         SaveMessageJob::dispatch($msg);
 
         // 广播禁言事件（前端禁用输入框）
-        broadcast(new \App\Events\UserMuted($roomId, $targetUsername, $duration, "管理员 {$admin->username} 已将您禁言 {$duration} 分钟"));
+        broadcast(new \App\Events\UserMuted(
+            roomId: $roomId,
+            username: $targetUsername,
+            muteTime: $duration,
+            operator: $admin->username,
+        ));
 
         return response()->json(['status' => 'success', 'message' => "已禁言 {$targetUsername} {$duration} 分钟"]);
     }

resources/views/chat/partials/scripts.blade.php

@@ -474,8 +474,9 @@
         if (d.username === window.chatContext.username && d.mute_time > 0) {
             isMutedUntil = Date.now() + d.mute_time * 60 * 1000;
             const contentInput = document.getElementById('content');
+            const operatorName = d.operator || '管理员';
             if (contentInput) {
-                contentInput.placeholder = `您已被禁言 ${d.mute_time} 分钟，解禁后方可发言...`;
+                contentInput.placeholder = `${operatorName} 已将您禁言 ${d.mute_time} 分钟，解禁后方可发言...`;
                 contentInput.disabled = true;
                 // 到期自动恢复
                 setTimeout(() => {
@@ -549,7 +550,17 @@
         // 前端禁言检查
         if (isMutedUntil > Date.now()) {
             const remaining = Math.ceil((isMutedUntil - Date.now()) / 1000);
-            alert(`您正在禁言中，还有 ${remaining} 秒后解禁。`);
+            const remainMin = Math.ceil(remaining / 60);
+            // 在聊天窗口显示持久提示，避免弹窗消失太快
+            const muteDiv = document.createElement('div');
+            muteDiv.className = 'msg-line';
+            muteDiv.innerHTML =
+                `<span style="color: #dc2626; font-weight: bold;">【提示】您正在禁言中，还需等待约 ${remainMin} 分钟（${remaining} 秒）后方可发言。</span>`;
+            const container2 = document.getElementById('say2');
+            if (container2) {
+                container2.appendChild(muteDiv);
+                container2.scrollTop = container2.scrollHeight;
+            }
             return;
         }