修复拍一拍消息重复显示的问题，按发送者/被拍者路由到包厢，其他用户路由到公屏

resources/js/chat-room/pat.js

@@ -126,21 +126,25 @@ function appendPatMessage(displayText, fromUserHeadface, fromUser, targetUser) {
 
     div.innerHTML = headImg + fromHtml + "对" + toHtml + "说：<span class=\"msg-content\" style=\"color: #000000\">👋 我刚拍了拍你</span> <span class=\"msg-time\">(" + timeStr + ")</span>";
 
+    // 路由规则：发送者和被拍者在包厢看到，其他用户在公屏看到
+    const currentUser = window.chatContext?.username || "";
+    const isRelatedToMe = fromUser === currentUser || targetUser === currentUser;
+
+    if (isRelatedToMe) {
+        const container2 = state?.container2;
+        if (container2) {
+            container2.appendChild(div);
+            pruneMessageContainer(container2, 300);
+            if (state?.autoScroll) {
+                container2.scrollTop = container2.scrollHeight;
+            }
+        }
+    } else {
         container.appendChild(div);
         pruneMessageContainer(container, 600);
         if (state?.autoScroll) {
             container.scrollTop = container.scrollHeight;
         }
-
-    // 同时在包厢窗口(say2)也显示
-    const container2 = state?.container2;
-    if (container2) {
-        const div2 = div.cloneNode(true);
-        container2.appendChild(div2);
-        pruneMessageContainer(container2, 300);
-        if (state?.autoScroll) {
-            container2.scrollTop = container2.scrollHeight;
-        }
     }
 }