feat: v0.14.0 — ISS-006 time-scale slider values up to 1000x; tests use fastest time

lib/sim/engine.test.ts

@@ -11,9 +11,12 @@ import { PLANE_TYPES } from '@/lib/game/catalog';
 import { MARKET_TARGET_OPEN_PACKAGES, mulberry32 } from '@/lib/game/seed';
 import { arrivalTimeFor } from './movement';
 import {
+  clampTimeScale,
   deliverPackages,
   expirePackages,
   MAX_TICK_ELAPSED_MS,
+  MAX_TIME_SCALE,
+  MIN_TIME_SCALE,
   reputationGainFor,
   spawnCoveragePackages,
   spawnOpenPackages,
@@ -374,6 +377,32 @@ describe('spawnCoveragePackages (v0.8.0 spawn coverage rule)', () => {
   });
 });
 
+describe('clampTimeScale — v0.14.0 ladder bounds [1, 1000]', () => {
+  it('clamps below-minimum values to MIN_TIME_SCALE', () => {
+    expect(clampTimeScale(0)).toBe(MIN_TIME_SCALE);
+    expect(clampTimeScale(-5)).toBe(MIN_TIME_SCALE);
+    expect(clampTimeScale(0.1)).toBe(MIN_TIME_SCALE);
+  });
+
+  it('clamps above-maximum values to MAX_TIME_SCALE', () => {
+    expect(clampTimeScale(1001)).toBe(MAX_TIME_SCALE);
+    expect(clampTimeScale(2000)).toBe(MAX_TIME_SCALE);
+    expect(clampTimeScale(Number.MAX_SAFE_INTEGER)).toBe(MAX_TIME_SCALE);
+  });
+
+  it('passes in-range values through unclamped — ladder and off-ladder alike', () => {
+    for (const s of [1, 2, 5, 10, 25, 50, 100, 250, 500, 1000]) {
+      expect(clampTimeScale(s)).toBe(s); // the full v0.14.0 slider ladder
+    }
+    expect(clampTimeScale(37)).toBe(37); // off-ladder but in range (e.g. a legacy value)
+  });
+
+  it('keeps the endpoints exact', () => {
+    expect(clampTimeScale(MIN_TIME_SCALE)).toBe(MIN_TIME_SCALE);
+    expect(clampTimeScale(MAX_TIME_SCALE)).toBe(MAX_TIME_SCALE);
+  });
+});
+
 // Local helper mirroring lib/sim/movement.ts (kept private there on purpose — the
 // engine composes arrivalTimeFor; tests just need the duration for fixtures).
 function travelMs(km: number, speedKmh: number): number {