fix ui, add labels for distance and time, add choo choo button and hide button

core/biome_generator/rails.gd

@@ -392,7 +392,14 @@ func train_move(delta: float) -> void:
 
 #Calculate train distance for steam stats
 func _track_steam_distance(distance_units: float) -> void:
-	if distance_units <= 0.0 or not SteamManager.is_on_steam:
+	if distance_units <= 0.0:
+		return
+
+	# Always track the global distance in our save file (for UI and persistency)
+	GameState.save_data.total_distance_km += distance_units * STEAM_DISTANCE_KM_PER_UNIT
+
+	# Steam specific logic
+	if not SteamManager.is_on_steam:
 		return
 
 	_pending_steam_distance_km += distance_units * STEAM_DISTANCE_KM_PER_UNIT