Feat: 系统播报用户头像改为像素军号图标（钓鱼播报/星海小博士/送花播报等）

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

@@ -290,12 +290,15 @@
             return `<span class="msg-user" style="color: ${color}; cursor: pointer;" onclick="switchTarget('${uName}')" ondblclick="openUserCard('${uName}')">${uName}</span>`;
         };
 
-        // 获取发言者头像
+        // 系统播报用户（不包含 AI小班长）使用军号图标，AI小班长用专属图，普通用户用头像
+        const buggleUsers = ['钓鱼播报', '星海小博士', '送花播报', '系统传音', '系统公告'];
         const senderInfo = onlineUsers[msg.from_user];
         const senderHead = ((senderInfo && senderInfo.headface) || '1.gif').toLowerCase();
         let headImgSrc = `/images/headface/${senderHead}`;
         if (msg.from_user === 'AI小班长') {
             headImgSrc = '/images/ai_bot.png';
+        } else if (buggleUsers.includes(msg.from_user)) {
+            headImgSrc = '/images/bugle.png';
         }
         const headImg =
             `<img src="${headImgSrc}" style="display:inline;width:16px;height:16px;vertical-align:middle;margin-right:2px;mix-blend-mode: multiply;" onerror="this.src='/images/headface/1.gif'">`;