fix: 解决MCP接入点输入框没有显示报错信息的问题

main/manager-web/src/components/ChatHistoryDialog.vue

@@ -90,6 +90,10 @@ export default {
             if (val) {
                 this.resetData();
                 this.loadSessions();
+            } else {
+                this.audioElement?.pause();
+                this.audioElement = null;
+                this.playingAudioId = null;
             }
         },
         dialogVisible(val) {

main/manager-web/src/components/FunctionDialog.vue

@@ -314,7 +314,7 @@ export default {
         if (res.data.code === 0) {
           this.mcpUrl = res.data.data || "";
         } else {
-          this.mcpUrl = "";
+          this.mcpUrl = res.data.msg;
           console.error('获取MCP地址失败:', res.data.msg);
         }
       });