Show the whole Division mainline. district now has option for auto hiding on phases where not needed. scaffold for multi-player geometry showing division. regions on mainline cards implemented. bug fix on laying rail cards. optimized replay (carried links forward). Add sounds, first pass

src/engine/advance.ts

@@ -357,7 +357,7 @@ function enterMainline(
     tray.direction,
     node.gradeUp ?? 'east',
   );
-  node.transits.push({ tray: id, stagesRemaining: stages, direction: tray.direction });
+  node.transits.push({ tray: id, stagesRemaining: stages, stagesTotal: stages, direction: tray.direction });
   tray.position = { at: 'mainline', index };
 }