redid versioning

Signed-off-by: Dmitri Dolguikh <dmitri.external@netbird.io>

management/server/peer/peer.go

@@ -173,6 +173,7 @@ type PeerSystemMeta struct { //nolint:revive
 	Flags              Flags       `gorm:"serializer:json"`
 	Files              []File      `gorm:"serializer:json"`
 	Capabilities       []int32     `gorm:"serializer:json"`
+	SyncMessageVersion int
 }
 
 func (p PeerSystemMeta) isEqual(other PeerSystemMeta) bool {
@@ -415,6 +416,9 @@ func diffMeta(oldMeta, newMeta PeerSystemMeta, oldLocation, newLocation Location
 	if !sameMultiset(oldMeta.Files, newMeta.Files) {
 		add("files", fmt.Sprintf("%v", oldMeta.Files), fmt.Sprintf("%v", newMeta.Files))
 	}
+	if oldMeta.SyncMessageVersion != newMeta.SyncMessageVersion {
+		add("sync_meta_version", fmt.Sprintf("%d", oldMeta.SyncMessageVersion), fmt.Sprintf("%d", newMeta.SyncMessageVersion))
+	}
 
 	if !oldLocation.equal(newLocation) {
 		add("connection_ip", oldLocation.ConnectionIP, newLocation.ConnectionIP)