feat: show score achievement probabilities in leader rankings

src/lib/workers/score-optimizer.worker.ts

@@ -79,6 +79,7 @@ self.onmessage = (event: MessageEvent<OptimizeRequest | CombinationRequest | Ach
       const result = optimizeExactOrderAndCooldowns(event.data.cards, event.data.chart, options);
       let achievementProbabilities: ScoreAchievementProbabilities | undefined;
       if (event.data.includeAchievementProbabilities) {
+        self.postMessage({ type: 'probability-start' });
         const orderedCards = cardsForResult(event.data.cards, result);
         achievementProbabilities = estimateScoreAchievementProbabilities(
           orderedCards,