修复：

1. 重复请求
2. 后端接口问题修复

已知bug：
1. 交换信令问题
2. rtc未测试

src/views/Chat.vue

@@ -93,7 +93,8 @@ const handleNavChange = (nav) => {
 
 // 监听通话状态变化
 watch(() => chatStore.callStatus, (status) => {
-  showVideoCall.value = status !== 'idle';
+  // 只有当通话状态是活跃状态时才显示视频组件
+  showVideoCall.value = status === "connecting" || status === "calling" || status === "ringing" || status === "ongoing";
 });
 
 // 监听来电
@@ -113,6 +114,9 @@ watch(() => chatStore.currentCall, (call) => {
     callerInfo.value = chatStore.friends.find(f => f.id === call.peerId);
     callType.value = call.callType;
     isIncoming.value = false;
+  } else {
+    // 当通话结束时重置状态
+    showVideoCall.value = false;
   }
 });
 
@@ -126,10 +130,11 @@ const handleRejectCall = () => {
   chatStore.rejectCall();
 };
 
-// 处理结束通话
+// 处理结束通话 - 修复挂断逻辑
 const handleEndCall = () => {
   chatStore.endCall();
 };
+
 // 加载主题
 themeStore.loadTheme();
 
@@ -150,7 +155,6 @@ onUnmounted(() => {
   disconnectWebSocket();
 });
 </script>
-
 <style scoped>
 @keyframes float {
   0% { transform: translateY(0px) rotate(0deg); }