Say who is playing, what you can press, and where you are in the Stage

Mostly presentation, plus one rules fix found on the way.

src/sim/view.ts

@@ -111,6 +111,8 @@ export type Frame = {
   stage: number;
   clock: string;
   phase: string;
+  /** The raw phase, so a caller can mark WHICH of the five is current without parsing the label. */
+  phaseKey: string;
   actor: number | null;
   superintendent: number;
   revenue: number;
@@ -332,11 +334,11 @@ export function describeIntent(s: GameState, i: Intent): string {
     case 'draw.fromHomeOffice':
       return `draw blind from the Home Office deck (${s.decks.homeOffice.length} left)`;
     case 'draw.end':
-      return 'done drawing — end my turn';
+      return 'End my turn';
     case 'switch.end':
-      return 'done switching — end my turn';
+      return 'End my switching turn';
     case 'loadUnload.end':
-      return 'done working — end the Load/Unload phase';
+      return 'End my Cargo phase';
     case 'newTrain.passCar':
       return 'add no more cars to this train';
     case 'newTrain.secondSection':
@@ -459,6 +461,7 @@ export function snapshot(
     stage: s.clock.stage,
     clock: clockTime(s.clock.stage),
     phase: phaseLabel(s.clock.phase),
+    phaseKey: s.clock.phase,
     actor: s.clock.currentActor,
     superintendent: s.clock.superintendent,
     revenue: s.players[0]?.revenue ?? 0,