more fixes and tweaks

src/sim/view.ts

@@ -302,9 +302,13 @@ export function describeIntent(s: GameState, i: Intent): string {
       const pending = s.clock.pendingDecision;
       const who = pending ? trainName(s, pending.train) : 'the train';
       const ahead = pending ? trainName(s, pending.occupiedBy) : 'the train ahead';
+      // NOT "risks a collision, −5". A rear-end on a Mainline card is described by §10 and is what
+      // ABS Signals exists to prevent, but no such collision is implemented — granting clearance is
+      // currently free. Saying otherwise invents a consequence the engine will never deliver.
+      // See implications.md §10 Q13.
       return i.allow
-        ? `ALLOW — ${who} follows ${ahead} into the same Subdivision (risks a collision, −5 Revenue)`
-        : `HOLD — ${who} waits where it is: safe, but it loses the Stage`;
+        ? `ALLOW — ${who} follows ${ahead} onto the same Mainline card, closing up behind it`
+        : `HOLD — ${who} waits where it is, losing the Stage but keeping the line clear`;
     }
     case 'draw.fromDepartment': {
       // Naming the card is the whole point of a FACE-UP slot: "slot 2" tells a player nothing, and