NET-1782: Fetch Node Connection Status from metrics (#3237)

* add live status of node

* handle static node status

* add public IP field to server configuration

* get public Ip from config

* improve node status logic

* improvise status check

* use only checkin status on old nodes

---------

Co-authored-by: the_aceix <aceixsmartx@gmail.com>

models/api_node.go

@@ -52,6 +52,7 @@ type ApiNode struct {
 	IsStatic          bool                `json:"is_static"`
 	IsUserNode        bool                `json:"is_user_node"`
 	StaticNode        ExtClient           `json:"static_node"`
+	Status            NodeStatus          `json:"status"`
 }
 
 // ApiNode.ConvertToServerNode - converts an api node to a server node
@@ -192,6 +193,7 @@ func (nm *Node) ConvertToAPINode() *ApiNode {
 	apiNode.IsStatic = nm.IsStatic
 	apiNode.IsUserNode = nm.IsUserNode
 	apiNode.StaticNode = nm.StaticNode
+	apiNode.Status = nm.Status
 	return &apiNode
 }