fix: 修复 连接远程应用时标签匹配失败的问题

apps/terminal/models/applet/applet.py

@@ -172,8 +172,9 @@ class Applet(JMSBaseModel):
             return None
 
         spec_label = asset.labels.filter(label__name__in=['AppletHost', '发布机']).first()
-        if spec_label:
-            matched = [host for host in hosts if host.name == spec_label.value]
+        if spec_label and spec_label.label:
+            label_value = spec_label.label.value
+            matched = [host for host in hosts if host.name == label_value]
             if matched:
                 return matched[0]