API功能性修复

internal/handler/admin_server_api.go

@@ -588,11 +588,20 @@ func serializeAdminServer(server model.Server, groups map[int]model.ServerGroup,
 		availableStatus = "online"
 	}
 
+	hasChildren := false
+	for _, s := range servers {
+		if s.ParentID != nil && *s.ParentID == server.ID {
+			hasChildren = true
+			break
+		}
+	}
+
 	return gin.H{
 		"id":                server.ID,
 		"type":              server.Type,
 		"code":              stringValue(server.Code),
 		"parent_id":         intValue(server.ParentID),
+		"has_children":      hasChildren,
 		"group_ids":         groupIDs,
 		"route_ids":         decodeIntSlice(server.RouteIDs),
 		"name":              server.Name,