Implement Enhancements, Mainline modifiers and Maneuvers; fix unplayable track

src/engine/setup.ts

@@ -17,6 +17,7 @@ import {
   MODIFIER_PROFILES,
   OFFICE_PROFILES,
   MAINLINE_PROFILES,
+  TRACK_SUPPLY,
   ROLLING_STOCK_SUPPLY,
   STAGES_PER_DAY,
   TIMETABLED_TRAINS,
@@ -122,6 +123,7 @@ function buildOfficeArea(owner: PlayerIndex): OfficeArea {
     standing: [],
     facility: buildPassengerFacility('whistlePost'),
     modifiers: [],
+    enhancements: [],
   };
 
   const limitsCard = (): TrackCard => ({
@@ -130,6 +132,7 @@ function buildOfficeArea(owner: PlayerIndex): OfficeArea {
     standing: [],
     facility: null,
     modifiers: [],
+    enhancements: [],
   });
 
   const grid = new Map<string, TrackCard>();
@@ -137,7 +140,19 @@ function buildOfficeArea(owner: PlayerIndex): OfficeArea {
   grid.set(coordKey(limitsWest), limitsCard());
   grid.set(coordKey(limitsEast), limitsCard());
 
-  return { owner, tier: 'whistlePost', grid, officeCoord, runningRow: row, limitsWest, limitsEast, adOccupancy: [] };
+  return {
+    owner,
+    tier: 'whistlePost',
+    grid,
+    officeCoord,
+    runningRow: row,
+    limitsWest,
+    limitsEast,
+    adOccupancy: [],
+    heldAtLimits: [],
+    dispatchUsedToday: [],
+    trackSupply: new Map(TRACK_SUPPLY.map((t) => [`${t.geometry}:${t.hand}`, t.perPlayer])),
+  };
 }
 
 /**