chore: send error count in heartbeat, not list

internal/proto/packetHeartbeat.go

@@ -29,6 +29,6 @@ type PacketHeartbeat struct {
 	// The ID of the user under which Wraith is running.
 	HostUserId string
 
-	// A list of errors the Wraith has encountered.
-	Errors []error
+	// A count of errors the Wraith has encountered.
+	Errors int
 }

modulepinecomms.go

@@ -218,7 +218,7 @@ func (m *ModulePinecomms) Mainloop(ctx context.Context, w *libwraith.Wraith) {
 					Hostname:   hostname,
 					HostUser:   username,
 					HostUserId: userId,
-					Errors:     errs,
+					Errors:     len(errs),
 				}
 				heartbeatBytes, err := proto.Marshal(&heartbeatData, m.OwnPrivKey)
 				if err != nil {