fixed train# specific rules. cleaned up display topline and train display on division map

src/engine/intents.ts

@@ -55,6 +55,14 @@ export type Intent =
   | { type: 'freightAgent.stockOutbound'; at: GridCoord; carType: CarType }
   | { type: 'freightAgent.clearInbound'; at: GridCoord; index: number }
   | { type: 'freightAgent.unjam'; at: GridCoord; from: 'outbound' | 'inbound' | 'menAtWork'; index: number }
+  /**
+   * Finish the turn having chosen the Freight Agent and done nothing.
+   *
+   * §6.3 lists three things the Freight Agent MAY do; it does not say one must be done. Without this
+   * the option was a trap — having chosen it, the only legal moves were to stock, to clear, or to
+   * UNJAM, and unjamming a healthy facility throws away a load that cost a whole action to stock.
+   */
+  | { type: 'freightAgent.end' }
   // -- New Train Phase (§7)
   | { type: 'newTrain.placeCar'; trayId: TrayId; carType: CarType; loaded: boolean }
   | { type: 'newTrain.passCar'; trayId: TrayId }