Fix: on login add player once

models/main.go

@@ -141,7 +141,7 @@ type Journal struct {
 
 type PlayerStats struct {
 	ID                  uint32  `db:"id"`
-	PlayerUsername      string  `db:"player_username"`
+	Username            string  `db:"username"`
 	GamesPlayed         int     `db:"games_played"`
 	GamesWon            int     `db:"games_won"`
 	GamesLost           int     `db:"games_lost"`