[优化] 添加 OpenFlared API 支持，增强心跳和配置管理功能

openflare_server/service/node.go

@@ -166,6 +166,7 @@ func DeleteNode(id uint) error {
 	}
 	invalidateAccessTokenCache(node.AccessToken)
 	DisconnectAgentWSClient(node.NodeID)
+	DisconnectFlaredWSClient(node.NodeID)
 	return nil
 }
 
@@ -365,6 +366,9 @@ func nodeViewLastSeenAt(node *model.Node) any {
 	if node.NodeType == "tunnel_relay" && IsRelayWSConnected(node.NodeID) {
 		return RelayWSConnectedLastSeenValue
 	}
+	if node.NodeType == "tunnel_client" && IsFlaredWSConnected(node.NodeID) {
+		return FlaredWSConnectedLastSeenValue
+	}
 	if IsAgentWSConnected(node.NodeID) {
 		return AgentWSConnectedLastSeenValue
 	}